* Designates Speaker

Room A-Gilruth Room 104
Room B-Gilruth Old Gym
Room C-Gilruth New Gym
Room D-Gilruth Room 206

Preliminary Program

Monday, March 16, 1998
LUNAR HIGHLANDS CRUST
8:30 a.m.     Room A

Chairs:	G. Ryder
	M. D. Norman

Warren P. H.*
Bulk Composition of the Moon:  A Post-Clementine, Pre-Prospector Appraisal

Jones J. H.*
Tungsten Isotopic Anomalies in Lunar Samples and the Early Differentiation of the Moon

Hess P. C.*
Source Regions to Lunar Troctolite Parent Magmas

James O. B.*   Floss C.   McGee J. J.
Rare-Earth Distributions in Pyroxenes from a Lunar Mafic-Magnesian Ferroan Anorthosite

Snyder G. A.*   Floss C.   Taylor L. A.
The Origin of Ferroan Anorthosites and Rethinking Lunar Dogma:  Ion Probe Trace-Element Analyses of Minerals in Apollo 15 Rocks

Norman M.*   Borg L.   Nyquist L.   Bogard D.   Snyder G.   Taylor L.   
Lindstrom M.
Composition and Age of the Lunar Highlands:  Petrogenesis of Ferroan Noritic Anorthosite 62236

Shervais J. W.*   McGee J. J.
Alkali Suite Anorthosites and Norites:  Flotation Cumulates from Pristine KREEP with Magma Mixing and the Assimilation of Older Anorthosite

Longhi J.*
Silicate Liquid Immiscibility:  A Furtive Agent of Fractionation

Feher L. A.*   Ryder G.
Chemical Variation Within and Among Samples of the Apollo Aphanitic Impact 
Melt Rocks:  Generation, Relationships, and Crustal Sources

Ryder G.*   Stockstill K.   Herrell K.
Distribution of Ni, Co, and Ir in the Apollo 17 Poikilitic Impact Melts, 
Metal Segregation, and the
Indigenous Component

Korotev R. L.*   Haskin L. A.   Jolliff B. L.
Ir/Au Ratios and the Origin of Apollo 17 and Other Apollo Impact-Melt 
Breccias

Wieczorek M. A.*   Phillips R. J.
The Structure of Lunar Basins:  Implications for the Basin Forming Process

Li L.*   Mustard J. F.
Modeling of Lateral Transport on the Moon:  Implication for Impact 
Cratering

Monday, March 16, 1998
CHONDRULES
8:30 a.m.     Room B

Chairs:	A. E. Rubin
	G. E. Lofgren

Ash R. D.*   Rumble D. III   Alexander C. M. O'D.   MacPherson G. J.
Oxygen Isotopes in Isolated Chondrules from the Tieschitz Ordinary 
Chondrite:  Initial Compositions and Differential Parent Body Alteration

Russell S. S.   Leshin L. A.   McKeegan K. D.   MacPherson G. J.*
Oxygen-16 Enrichments in Aluminum-rich Chondrules from Unequilibrated 
Ordinary Chondrites

Maruyama S.*   Yurimoto H.   Sueno S.
CAI Related Spinel in a Compound Chondrule:  Evidence of O Isotope

Cuzzi J. N.*   Hogan R. C.   Paque J. M.   Dobrovolskis A. R.
Chondrule Rimming by Sweepup of Dust in the Protoplanetary Nebula:  
Constraints on Primary Accretion

Hood L. L.*   Marthaler T. N.
The Planetesimal Bow Shock Model for Chondrule Formation:  Initial 
Detailed Simulations

Polnau E.   Eugster O.*   Krähenbühl U.
Further Evidence for Chondrule Pre-Exposure to Cosmic Rays in the Solar 
Nebula

Yu Y.*   Hewins R. H.   D'Zio W.
Chondrules Formed by Dust/Droplet Collision

Fox G. E.*   Yu Y.   Hewins R. H.
Chondrule Formation from Ultra-Fine-Grained Precursors

Lofgren G. E.*   Le L.
Partial Melting of Type 1 Chondrule Precursor Aggregates:  An Experimental 
and Petrographic Study

Ebel D. S.*   Grossman L.
Effects of Dust Enrichment on Solid and Liquid Compositions in Equilibrium 
with Cosmic Gases

Schneider D. M.*   Symes S. J. K.   Sears D. W. G.
Differences in Sodium Content of Chondrules in EH and EL Chondrites and 
Implications for Formation

Rubin A. E.*   Sailer A. L.
Primary and Secondary Troilite in Ordinary-Chondrite Chondrules:  
Implications for Chondrule Formation

Schnabel C.*   Herzog G. F.   Delaney J. S.   Klöck W.   Sutton S. R.   
Flynn G. J.
Microdistributions of Zinc in Chondrites

Monday, March 16, 1998
INITIAL RESULTS FROM MARS GLOBAL SURVEYOR
8:30 a.m.     Room C

Chairs:	A. L. Albee
	J. B. Garvin

Albee A. L.*
The Surprising Saga of Mars Global Surveyor

McEwen A. S.*   Malin M. C.
Layering in the Upper Crust of Mars Seen in Valles Marineris by the Mars 
Orbital Camera

Smith D. E.*   Zuber M. T.   Frey H. V.   Garvin J. B.   Head J. W.   
Muhleman D. O.   Pettengill G. H.   Phillips R. J.   Solomon S. C.   
Zwally H. J.   Banerdt W. B.   Duxbury T. C.
Investigation Overview and First Results from the Mars Orbiter Laser 
Altimeter

Solomon S. C.*   Johnson C. L.   McGovern P. J.   Aharonson O.   Banerdt W. B.   
Head J. W.   Phillips R. J.   Smith D. E.   Zuber M. T.
An Overview of Lithospheric Flexure on Mars:  Implications of Initial MOLA 
Observations

Frey H. V.*   Sakimoto S. E. H.   Roark J. H.
The MOLA Topographic Signature at the Crustal Dichotomy Boundary Zone on 
Mars

Zuber M. T.*   Smith D. E.   Head J. W.   Solomon S. C.   Neumann G. A.   
Banerdt W. B.
The Shape of the Northern Hemisphere of Mars from the MGS Laser Altimeter

McGovern P. J.*   Johnson C. L.   Solomon S. C.   Head J. W.   Banerdt W. B.   
Zuber M. T.   Smith D. E.   Phillips R. J.
Lithospheric Loading and Evolution of Large Volcanoes on Mars:  New 
Insights from MOLA Observations

Phillips R. J.*   Brown C. D.   Hauck S. A. II   Harrington B. W.   
Wieczorek M. A.   Head J. W. III
Preliminary Geomorphology Results from the MGS MOLA Experiment

Head J. W.*   Seibert N.   Pratt S.   Smith D.   Zuber M.   Solomon S. C.   
McGovern P. J.   Garvin J. B.   MOLA Science Team 
Characterization of Major Volcanic Edifices on Mars Using Mars Orbiter 
Laser Altimeter Data

Garvin J. B.*   Frawley J. J.
Martian Impact Crater Morphometry:  Preliminary Results from the Mars 
Orbiter Laser Altimeter
(MOLA) Investigation

Hartmann W. K.*
Martian Crater Populations and Obliteration Rates:  First Results from 
Mars Global Surveyor

Pearl J. C.*   Smith M. D.   Christensen P. R.
TES Observations of the Noachis Terra Dust Storm of 1997

Marshall J. R.*   Borucki J.   Bratton C.
Aeolian Sand Transport in the Planetary Context:  Respective Roles of 
Aerodynamic and
Bed-Dilatancy Thresholds

Monday, March 16, 1998
IMPACT:  THEORY, EXPERIMENTS, AND EFFECTS
Session dedicated to the memory of Paul Barringer
8:30 a.m.     Room D

Chairs:	J. B. Plescia
	E. Pierazzo

Hörz F.   See T. H.*   Yang V.   Mittlefehldt D. W.
Major Element Composition of Ballistically Dispersed Melt Particles from 
Meteor Crater, AZ

Mittlefehldt D. W.*   Hörz F.
Siderophile Element Fractionation in Impact Glasses from Meteor Crater

Schrand C.*   Deutsch A.
Formation of Lechatelierite and Impact Melt Glasses in Experimentally 
Shocked Rocks

Mukhopadhyay S.*   Farley K. A.   Montanari A.   Ahrens T. J.
Extraterrestrial 3He in the Sedimentary Record

Gerasimov M. V.*   Dikov Yu. P.   Yakovlev O. I.   Wlotzka F.
Impact Vaporization:  Formation of Clusters?

Herrick R. R.*   Forsberg N. K.
The Topography of Oblique Impact Craters on Venus and the Moon

Dahl J. M.*   Schultz P. H.
Shock Decay in Oblique Impacts

Barnouin-Jha O. S.*   Schultz P. H.
Modeling an Ejecta Curtain in an Atmosphere at Laboratory Scales

Sugita S.*   Schultz P. H.
Spectroscopic Observation of Atmospheric Interaction of Impact Vapor 
Clouds

Nemtchinov I. V.   Shuvalov V. V.   Artemíeva N. A.   Ivanov B. A.*   
Kosarev I. B.   Trubetskaya I. A.
Light Impulse Created by Meteoroids Impacting the Moon

Ryan E. V.*   Davis D. R.   Giblin I.
Experimental Studies of the Fragmentation of Simulated Edgeworth-Kuiper 
Belt Objects

Nemtchinov I. V.*   Popova O. P.   Spalding R. E.
Impacts of the 1–10-m-diameter Meteoroids onto the Surface of Mars

Chyba C. F.*   van der Vink G. E.   Hennet C. B.
Meteorite Impacts and the Comprehensive Test Ban Treaty

Monday, March 16, 1998
SPECIAL PLENARY SESSION
1:30 p.m.     Room C

Chair:	D. C. Black

Presentation of the 1997 GSA Stephen F. Dwornik Student Paper Award Winners

Michael H. Carr, U.S. Geological Survey, Menlo Park, California
Masursky Lecture:  Mars:  Aquifers, Oceans, and the Prospects for Life

Matthew P.  Golombek, Jet Propulsion Laboratory
The Mars Pathfinder Mission and Science Results

Monday, March 16, 1998
IMPACT:  TERRESTRIAL CRATERS
2:30 p.m.     Room A

Chairs:	R. C. Herrick
	D. J. Roddy

Spray J. G.*   Kelley S. P.   Rowley D. B.
Evidence for a Late Triassic Multiple Impact Event on Earth

Dypvik H.*   Attrep M. Jr.
The Mjølnir Impact — Environmental Consequences

Koeberl C.*   Reimold W. U.   Vincent P. M.   Brandt D.
Aorounga and Gweni Fada Impact Structures, Chad, Central Africa:  
Petrology and Geochemistry
of Target Rocks

Masaitis V. L.*   Shafranovsky G. I.   Fedorova I. G.   Koivisto M.   
Korhonen J. V.
Lappajärvi Astrobleme:  The First Find of Impact Diamonds on the 
Fennoscandian Shield

Abels A.*   Pesonen L. J.   Deutsch A.   Bischoff L.   Lehtinen M.
The Söderfjärden Impact Structure, W. Finland:  Multiple Data Integration 
with Implications for Morphometry, Cratering Process, and Post-Impact 
Sedimentary History

Therriault A. M.*   Grieve R. A. F.   Fowler A. D.   Deutsch A.
The Sudbury Igneous Complex:  The Differentiation of a Single Melt

Wood C. R.*   Spray J. G.
Emplacement of Impact Melt in Fault/Fracture Systems as Constrained by the 
Hess Offset Dyke of the Sudbury Impact Structure

Gumede T.   Robertson D. J.   Master S.*
Geophysical Studies of the Highbury Meteorite Impact Structure, Zimbabwe

Plescia J. B.*
Teague Ring Impact Structure, Western Australia:  Gravity Survey

Sharpton V. L.*   Dressler B. O.   Sharpton T. J.
Mapping the Haughton Impact Crater, Devon Island, NWT:  Implications for 
the Shape and Size of the Excavation Cavity

Bunch T. E.*   Grieve R. A. F.   Lee P.   McKay C. P.   Rice J. W.   
Schutt J. W.   Zent A.
Haughton-Mars 97 — II:  Preliminary Observations on Highly Shocked 
Crystalline Basement Rocks from the Haughton Impact Crater

Roddy D. J.*   Shoemaker E. M.   Wikberg L. H. III
Drill Core and Rock Sample Collections from Terrestrial Impact and 
Explosion Craters:  Building Archival and Research Programs on the 
Internet

Monday, March 16, 1998
SOLAR SYSTEM ISOTOPES AND SOLAR NEBULA PROCESSES
2:30 p.m.     Room B

Chairs:	H. Nagahara
	M. I. Petaev

Cassen P.*
The Influence of Nebular Thermal Evolution on Oxygen Isotopes

Petaev M. I.*   Wood J. A.
Mineral Equilibrium in Fractionated Nebular Systems. II. A New Code 
Embracing 18 Elements

Tsuchiyama A.*   Tachibana S.
Evaporation Behavior of Forsterite Dust in the Primordial Solar Nebula

Nagahara H.*   Ozawa K.
Kinetics and Chemical Fractionation During Diffusion-Controlled 
Evaporation of Olivine

Tachibana S.*   Tsuchiyama A.   Nagahara H.
An Experimental Study of Incongruent Evaporation of Enstatite

Dohmen R.*   Palme H.   Chakraborty S.   Rammensee W.
Experimental Evidence for Gas Phase Transport of Siderophile Elements in 
the Solar Nebula

Shukolyukov A.*   Lugmair G. W.
The 53Mn - 53Cr Isotope System in the Indarch EH4 Chondrite:  A Further 
Argument for 53Mn Heterogeneity in the Early Solar System

Lee D-C.*   Halliday A. N.
182W Anomalies in Ordinary Chondrites and the Initial 182Hf/180Hf of the 
Solar System

Chaussidon M.*   Robert F.   Rose E. F.
7Li/6Li and 11B/10B Ratios of Solar Wind Trapped in Lunar Soils

Ebihara M.*   Kumar P.   Bhattacharya S. K.
196Hg/202Hg Ratio and Hg Content in Meteorites and Terrestrial Standard 
Rocks:  A RNAA Study

Hanon P.*   Robert F.   Chaussidon M.
Li-Be-B Concentration and Isotopic Ratios of Meteoritic Chondrules:  
Implications for Li-Be-B Nucleosynthesis

Monday, March 16, 1998
SPECIAL SESSION 
MARS PATHFINDER:  ROCKS, DIRT, AND AIR
2:30 p.m.     Room C

Chairs:	M. P. Golombek
	D. T. Britt

Britt D. T.*   Anderson R.   Bell J. F. III   Crisp J.   Economou T.   
Herkenhoff K. E.   Madsen M. B.   McSween H. Y.   Murchie S.   Reid R.   
Rieder R.   Singer R. B.   Soderblom L.
The Mineralogy of the Mars Pathfinder Landing Site

Economou T. E.*   Rieder R.   Wänke H.   Turkevich A.   Brückner J.   
Dreibus G.   Crisp J.   McSween H. Jr.
The Chemical Composition of Martian Rocks and Soil:  Preliminary Analyses

McSween H. Y.*   Greenwood J. P.   Ghosh A.
Rocks of Andesitic Composition at the Mars Pathfinder Site:  What Do They 
Mean?

Dreibus G.*   Ryabchikov I.   Rieder R.   Economou T.   Brückner J.   
McSween M. Y. Jr.   Wänke H.
Relationship Between Rocks and Soil at the Pathfinder Landing Site and the 
Martian Meteorites

Bell J. F. III*   Anderson R. C.   Bishop J. L.   Bridges N. T.   Britt D. T.   
Crisp J. A.   Economou T.   Ghosh A.   Greenwood J. P.   Gunnlaugsson H. P.   
Hargraves R. B.   Herkenhoff K.   Hviid S. F.   Johnson J. R.   Knudsen J. M.   
Madsen M. B.   McSween H. Y. Jr.   Morris R. V.   Murchie S. L.   Reid R. J.
Mineralogy, Composition, and Origin of Soil and Dust at the Mars 
Pathfinder Landing Site

Hviid S. F.*   Madsen M. B.   Knudsen J. M.   Gunnlaugsson H. P.   Goetz W.   
Dinesen A. R.   Mogensen C. T.   Pedersen C. T.   Hargraves R. B.
Results of the Magnetic Properties Experiment on the Mars Pathfinder 
Lander

Moore H. J.*   Parker T. J.   Crisp J.   Golombek M. P.   Bickler D.   
Eisen H.   Gensler J.   Haldemann A.   Matijevic J. R.   Reid L.
Origin of Soil-Like Deposits at the Mars Pathfinder Landing Site, Mars

Greeley R.*   Kraft M.   Wilson G.   Sullivan R.   Kuzmin R.   Malin M.   
Bridges N.   Herkenhoff K.   Golombek M.   Smith P.
Aeolian Geology of the Mars Pathfinder Site

Magalhaes J. A.*   Schofield J. T.   Seiff A.   Barnes J. R.   Crisp D.   
Haberle R.   Larsen S.   Murphy J.   Wilson G.
Latest Results from the Mars Pathfinder Atmospheric Structure 
Investigation

Murphy J. R.*   Wilson G. W.   Seiff A.   Schofield J. T.   Magalhaes J.   
Larsen S.   Haberle R. M.   Crisp D.   Barnes J.
Meteorological Results from the Mars Pathfinder Lander:  An Overview

Monday, March 16, 1998
THE LUNAR REGOLITH:  
PROCESSES AND MATERIALS
2:30 p.m.     Room D

Chairs:	L. P. Keller
	P. Helfenstein

Symes S. J. K.*   Lofgren G. E.
Experimental Reproduction of Crystalline Lunar Spherule Textures and 
Mineralogies

Lindstrom D. J.*   Symes S. J. K.   Martinez R. R.
Trace Element Compositions of Individual Crystalline Lunar Spherules (CLS) 
from 14315 and 14318

Assonov S. S.*   Franchi I. A.   Pillinger C. T.   Semenova A. S.   
Shukolyukov Yu. A.   Verchovsky A. B.   Yassevitch A. N.
Nitrogen in Luna-16 Soils; The Influence of Regolith Processing

Humbert F.   Wieler R.*   Marty B.
Nitrogen and Argon in Individual Mineral Grains of a Lunar Soil:  Evidence 
for a Major Non-Solar Nitrogen Component

Llewellyn R. A.*   Grismore R.   Brown M. D.
Resolution of an Anomaly in the Measurement of 26Al in Lunar Core 79002/1

Keller L. P.*   Wentworth S. J.   McKay D. S.
Space Weathering:  Reflectance Spectroscopy and TEM Analysis of Individual 
Lunar Soil Grains

Helfenstein P.*   Veverka J.   Shepard M. K.
Submillimeter-scale Topography of Undisturbed Lunar Soils

Horanyi M.*   Walch B.   Robertson S.
Electrostatic Charging of Lunar Dust

Potter A. E.*   Morgan T. H.
Coronagraphic Observations of the Lunar Sodium Exosphere Near the Lunar 
Surface

Warren P. H.*
Strength/Porosity/Petrologic Screening During Delivery of Lunar Meteorites

Nishiizumi K.*   Caffee M. W.   Jull A. J. T.
Exposure Histories of Dar Al Gani 262 Lunar Meteories

Tuesday, March 17, 1998
PROBING THE MOON WITH REMOTE SENSING AND SAMPLES:  
A NEW INTEGRATION
8:30 a.m.     Room A

Chairs:	B. L. Jolliff
	D. B. J. Bussey

Taylor L. A.*   Pieters C.   Patchen A.   Taylor D.-H.   Wentworth S.   
McKay D. S.
Optical Properties and Abundances of Minerals and Glasses in the 10 to 45 
Micron Size Fraction of Mare Soils:  Part I

Pieters C. M.*   Taylor L. A.   Hiroi T.   McKay D.   Wentworth S.   Morris R.
Optical Properties and Abundances of Minerals and Glasses in the 10 to 45 
Micron Size Fraction of Mare Soils:  Part II

Gillis J. J.*   Spudis P. D.
Inventory of FeO and TiO2 Compositions for Mare Deposits of the Far Side 
of the Moon

Antonenko I.*   Head J. W.
Stratigraphy of the Schickard Crater Area, from Clementine Multispectral 
Data

Blewett D. T.*   Hawke B. R.   Lucey P. G.
A Spectral Study of the Hadley-Apennine Region of the Moon

Bussey D. B. J.*   Spudis P. D.   Hawke B. R.   Lucey P. G.   Taylor G. J.
Geology and Composition of the Apennine Mountains, Lunar Imbrium Basin

Lucey P. G.*   Taylor G. J.   Hawke B. R.
Global Imaging of Maturity:  Results from Clementine and Lunar Sample 
Studies

Jolliff B. L.*
A Clementine Perspective of Terra Materials in the Vicinity of the Apollo 
17 Landing Site

Peterson C. A.*   Hawke B. R.   Lucey P. G.   Taylor G. J.   Blewett D. T.   
Spudis P. D.
Remnants of the Ancient Lunar Crust Revealed by Clementine

Morrison D. A.*
Did a Thick South Pole-Aitken Basin Melt Sheet Differentiate to Form 
Cumulates?

Budney C. J.*   Taylor G. J.   Lucey P. G.
Did the Orientale Melt Sheet Differentiate?

Allen C. C.*   Weitz C. M.   McKay D. S.
Lunar Oxygen Extraction — Integration of Experimental and Remote Sensing 
Data

Tuesday, March 17, 1998
CARBONACEOUS CHONDRITES
8:30 a.m.     Room B

Chairs:	R. H. Jones
	M. E. Lipschutz

Steele I. M.*
Forsterite in ALHA77307:  Evidence for Multiple Origins

Jones R. H.*   Saxton J. M.   Lyon I. C.   Turner G.
Oxygen Isotope Analyses of Chondrule and Isolated Olivine Grains in the 
CO3 Chondrite, ALHA77307

Browning L. B.*   Bourcier W. L.
On the Origin of Rim Textures Surrounding Carbonate Grains in CM Matrices

Vali H.*   Golden D. C.   Sears S. K.   Ciftcioglu N.   Williams-Jones A. E.   
McKay D. S.   Thomas-Keprta K. A.   Ming D. W.   Zolensky M. E.
Association of Phyllosilicates and Organic Matter in the Fine-Grained 
Matrix of Murchison Meteorite

Schulte M.*   Shock E.
Coupled Organic Synthesis and Mineral Alteration on Meteorite Parent 
Bodies

Mayeda T. K.   Clayton R. N.*
Oxygen Isotope Effects in Serpentine Dehydration

Krot A. N.*   Petaev M. I.   Scott E. R. D.   Keil K.
Progressive Metamorphism of the CV3 Chondrites:  Evidence from Ca-Fe-rich 
Silicates in Type I Chondrules and Matrices in the Reduced and Oxidized, 
Bali-like and Allende-like CV3 Chondrites
and Allende Dark Inclusions

Zolensky M. E.*   Weisberg M.   Prinz M.   Nakamura K.   Yang S. V.
A Dark Inclusion with Nebular Materials in the Ningqiang Carbonaceous 
Chondrite

Brearley A. J.*
Dark Inclusions in the Leoville CV3 Carbonaceous Chondrite

Wang M.-S.   Lipschutz M. E.*
Thermally Metamorphosed Carbonaceous Chondrites from RNAA Data

Zipfel J.*   Wlotzka F.   Spettel B.
Bulk Chemistry and Mineralogy of a New "Unique" Metal-rich Chondritic 
Breccia, Hammadah Al Hamra 237

Simon S. B.*   Grossman L.   Ebel D. S.   Palenik C.
Large, Relict, Chromian Spinels in Allende:  A Link to Murchison?

Heymann D.*
A Novel Idea About the Nature of Phase Q

Tuesday, March 17, 1998
SPECIAL SESSION 
MARS PATHFINDER:  LANDING SITE ENVIRONMENT AND IMAGING RESULTS
8:30 a.m.     Room C

Chairs:	H. Y. Mc Sween Jr.
	R. J. Sullivan

Ghosh A.*   Greenwood J.   McSween H. Y.  Jr.
Normative Mineralogy and Possible Origin of Mars Pathfinder Soils

Bishop J. L.*   Scheinost A.   Bell J. F. III   Britt D.   Johnson J. R.   
Murchie S.
Ferrihydrite – Schwertmannite – Silicate Mixtures as a Model of Martian 
Soils Measured by Pathfinder

Bridges N. T.*   Bell J. F. III   Crisp J. A.   Economou T.   Johnson J. R.   
Murchie S. L.   Reid R. J.
Comparison Between APXS and IMP Multispectral Data at the Pathfinder 
Landing Site:  Evidence for Dust Coatings on Rock Surfaces

Parker T. J.*   Moore H. J.   Crisp J. A.   Golombek M. P.
Petrogenetic Interpretations of Rock Textures at the Pathfinder Landing 
Site

Golombek M. P.*   Haldemann A. F. C.   Moore H. J.   Parker T. J.   
Schofield J. T.
Assessment of Mars Pathfinder Landing Site Predictions

Jakosky B. M.*
The Martian Surface Revisited:  Integration of Pathfinder with Global 
Remote-Sensing and
Viking Lander Results

Tanaka K. L.*
Mars Pathfinder Landing Site:  Regional Geology and Mass-Flow 
Interpretation

Lucchitta B. K.*
Pathfinder Landing Site:  Alternatives to Catastrophic Floods and an 
Antarctic Ice-Flow Analog for Outflow Channels on Mars

Wilson G. R.*   Larsen S.   Murphy J. R.   Sullivan R. J.   Schofield J. T.   
Crisp D.   Haberle R. M.   Seiff A.   Magalhães J. A.   Barnes J. R.
The Martian Surface Boundary Layer:  Heat and Momentum Flux Results from 
Mars Pathfinder

Sullivan R.*   Greeley R.   Kraft M.   Murphy J.   Wilson G.   Golombek M.   
Herkenhoff K.   Smith P.
Initial Results of the Imager for Mars Pathfinder Windsock Experiment

Bridges N. T.   Greeley R.   Haldemann A. F. C.   Herkenhoff K. E.*   Kraft M.   
Parker T. J.   Ward A. W.
Orientation of Aeolian Flutes at the Mars Pathfinder Landing Site

Metzger S. M.*
Dust Devil Vortices at the Ares Vallis MPF Landing Site

Murchie S.*   Thomas N.   Britt D.   Herkenhoff K.   Bell J. F. III
Mars Pathfinder Imaging Results at Phobos and Deimos:  Consistency with 
Previous Data

Tuesday, March 17, 1998
PLANETARY SURFACE PROCESSES
8:30 a.m.     Room D

Chairs:	T. K. P. Gregg
	M. S. Robinson

Glaze L. S.   Baloga S. M.*   Mouginis-Mark P. J.
An Unusual Lava Flow Emplacement Process at Elysium Planitia, Mars

Fagents S. A.*   Greeley R.
Lava Flow Dynamics and Heat Transfer:  Insights into Planetary Flow 
Emplacement from Computational Fluid Dynamic Modeling

Gregg T. K. P.*   Sakimoto S. E. H.
Inside the "Black Box":  Velocity Distributions and Flow Rates in Lava 
Channels from Laboratory, Analytic, and Computational Fluid Dynamics 
Methods

Williams D. A.*   Lesher C. M.
Analytical/Numerical Modeling of the Emplacement and Erosional Potential 
of Archean and Proterozoic Komatiitic Lavas

Bulmer M. H.*   Wilson J. B.
Comparison of Stellate Domes on Venus to Stellate Volcanoes on the Earth's 
Seafloor

Ohtake M.*   Otake H.
Change of Mineral Reflectance Spectra Caused by Melting and Reduction

Nelson R. M.*   Hapke B. W.   Smythe W. D.   Spilker L. J.
Experimental Tests of Models of the Coherent Backscattering Opposition 
Effect

Shepard M. K.*   Campbell B. A.
Fractal Planets:  A Generalized Surface Roughness Model for Remote Sensing

Yen A. S.*   Murray B. C.   Rossman G. R.   Grunthaner F. J.
Ultraviolet Radiation Induced Desorption of Water from Martian Soil

Ivanov A. B.*   Muhleman D. O.   Zuber M. T.
Near North-Polar Terrains and the Edge of the Layered Deposits from Mars 
Observer
Laser Altimiter Observations

Robinson M. S.*   Hawke B. R.   Lucey P. G.   Taylor G. J.   Spudis P. D.
Compositional Heterogeneity of Mercury's Crust

Reedy R. C.*   Nishiizumi K.
Factors Affecting the Interpretation of Solar-Proton-produced Nuclides and 
Some Chlorine-36 Results

Tuesday, March 17, 1998
LUNAR MARE VOLCANISM
1:30 p.m.     Room A

Chairs:	J. E. Dasch
	J. W. Delano

Van Orman J. A.   Grove T. L.*
Origin of High-Ti Lunar Ultramafic Glasses:  Constraints from Kinetic and 
Phase Equilibrium Studies

Walker R. J.*   Morgan J. W.   Shearer C. K.   Papike J. J.
Rhenium-Osmium Isotopic Systematics of Lunar Orange Glass

Dasch J.*   Ryder G.   Reese Y.   Wiesmann H.   Shih C. -Y.   Nyquist L.
Old Age of Formation for a Distinct Variety of A17 High-Titanium Mare 
Basalt

Arai T.*   Papike J. J.   Shearer C. K.   Warren P. H.   Takeda H.
Ion Microprobe Investigations of Pyroxene and Plagioclase from Ancient 
Mare Basalt Asuka 881757

Delano J. W.*   Fernandes V. A.
Deep-Seated Magmatic Processes Reflected by Compositional Trends Within 
Apollo 14 Green Glasses

Snyder G. A.*   Borg L. E.   Taylor L. A.   Nyquist L. E.   Halliday A. N.
Volcanism in the Hadley-Apennine Region of the Moon:  Geochronology, Nd-Sr 
Isotopic Systematics, and Depths of Melting

Weitz C. M.*   Head J. W. III
Diversity of Lunar Volcanic Eruptions at the Marius Hills Complex

Giguere T. A.*   Hawke B. R.   Taylor G. J.   Lucey P. G.
Geochemical Studies of Lunar Cryptomare

Staid M.*   Pieters C. M.
A Re-Evaluation of Lunar Basalt Types Through Spectral Analysis of Fresh 
Mare Craters

Hiesinger H.*   Jaumann R.   Neukum G.   Head J. W. III
On the Relation of Age and Titanium Content of Lunar Mare Basalts

Yingst R. A.*   Head J. W. III
The Characteristics of Lunar Lava Ponds as Indicators of Magma Transport 
Mechanisms

Arkani-Hamed J.*   Sjogren W. L.
Equipotential Surface Hypothesis of Mare Floors Revisited

Tuesday, March 17, 1998
CARBONACEOUS CHONDRITES AND THEIR CAIs
1:30 p.m.     Room B

Chairs:	H. Palme
	A. M. Davis

Baker L.*   Franchi I. A.   Maynard J. M.   Wright I. P.   Pillinger C. T.
Measurement of Oxygen Isotopes in Water from CI and CM Chondrites

Guan Y.*   Hofmeister A.   Messenger S.   Walker R. M.
Two Types of Deuterium-rich Carriers in Renazzo Matrix

Varela M. E.*   Mosbah M.   Métrich N.   Kurat G.   Duraud J. P.
Carbon and Nitrogen Analysis of Glass Inclusions in Renazzo (CR) Olivine 
by 12C(d,p)13C and 14N(d,p)15N Nuclear Reactions

Nichols R. H. Jr.*   Ott U.   Podosek F. A.   Brannon J. C.   Ramezani J.   
Jennings C.
Chromium-54 Isotopic Anomaly Distribution in Orgueil Chemical and Physical 
Separates

Swindle T. D.*   Cohen B.   Li B.   Olson E.   Krot A. N.   Birjukov V. V.   
Ulyanov A. A.
Iodine-Xenon Studies of Separated Components of the Efremovka (CV3) 
Meteorite

Palme H.*   Borisov A.   Wulf A. V.
Experimental Determination of the Oxidation Sequence of Refractory Metals

Paque J. M.*   Le L.   Lofgren G. E.
Experimentally Produced Spinel Rims on Ca-Al-rich Inclusion Bulk 
Compositions

Kim G. L.*   Yurimoto H.   Sueno S.
16O-enriched Melilite and Anorthite Coexisting with 16O-depleted Melilite 
in a CAI

Hiyagon H.*
Distribution of Oxygen Isotopes in and Around Some Refractory Inclusions 
from Allende

Davis A. M.*   Simon S. B.   Grossman L.
Reexamination of the Allende Type B1 CAI NMNH 5241

Connolly H. C. Jr.*   Burnett D. S.
Minor Element Distributions in and Among Spinels from Type B CAIs

Shen J. J.*   Lee T.
138La Isotopic Anomaly in CAI

Becker H.*   Walker R. J.   Grossman J. N.   Grossman L.   MacPherson G. J.   
Morgan J. W.   Simon S. B.
Re-Os Isotopic Systematics of a CAI from the Allende Meteorite

Tuesday, March 17, 1998
WATER AND OTHER VOLATILES ON MARS
1:30 p.m.     Room C

Chairs:	P. J. Mouginis-Mark
	J. M. Dohm

Leshin L. A.*
The Origin and Evolution of Water on Mars:  Possible Constraints on the 
Juvenile Reservoir

Jakes P. J.*   Rajmon D.
Zeolites — Fate of Martian Water?

Griffith L. L.*   Shock E. L.
New Models of Planetary Processes that Link Magma Evolution and 
Hydrothermal Alteration

Newsom H. E.*   Hagerty J. J.   Goff F.
Acid-Sulfate Hydrothermal Fluids and the Origin of the Martian Soil

Dohm J. M.*   Tanaka K. L.   Lias J. H.   Hare T. M.   Anderson R. C.   
Gulick V. C.
Warrego Valles and Other Candidate Sites of Local Hydrothermal Activity 
Within the
Thaumasia Region, Mars

Mouginis-Mark P. J.*
Emplacement of Impact Crater Ejecta on Mars

Blaney D. L.*
Mars Dust Formation by Impact Craters into Volatile Materials and Aerosol 
Formation of Sulfate Duricrust

Mustard J. F.*
Formation of Regional Duricrusted Soils

Catling D. C.*
Some Possible Mineralogical Tracers of the Climate on Early Mars

Clifford S. M.*
Mars:  The Effect of Stratigraphic Variations in Regolith Diffusive 
Properties on the Evolution and Vertical Distribution of Equatorial Ground 
Ice

Quinn R. C.*   Zent A. P.
Heterogeneous Catalysis of Hydrogen Peroxide Vapor by Martain Soil 
Analogs:  Implications for Regolith Penetration Depths of Photochemically 
Produced Oxidants on Mars

Bass D. S.*   Paige D. A.
Constraining the Amount of Water Frost Deposited on the Residual North 
Polar Cap of Mars in the
Late Summer

McAfee J. M.*   Winer A. M.   Herr K. C.   Pimentel G. C.
Water Vapor Abundance and Temperature from the Mariner 6 and 7 Infrared 
Spectra

Tuesday, March 17, 1998
COSMIC DUST
1:30 p.m.     Room D

Chairs:	G. J. Flynn
	M. E. Zolensky

Liou J.-C.*   Zook H. A.   Jackson A. A.
Distribution of Retrograde Cometary Dust Particles in the Solar System

Kehm K.*   Flynn G. J.   Sutton S. R.   Hohenberg C. M.
Combined Noble Gas and Trace Element Measurements in Single IDPs from the 
L2036 Collector

Rost D.*   Stephan T.   Jessberger E. K.   Nakamura K.   Klöck W.
New TOF-SIMS Analyses of Sections from Stratospheric Dust Particles

Rietmeijer F. J. M.*
Looking for Order in Chaos:  Metastable Eutectics Constrain the Petrologic 
Phase Equilibria in
Aggregate IDPs

Engrand C.*   McKeegan K. D.   Leshin L. A.   Brownlee D. E.
In-Situ Measurement of Oxygen Isotopic Compositions of Deep-Sea and 
Antarctic Cosmic Spherules

Brownlee D. E.*   Joswiak D. J.   Bradley J. P.   Schlutter D. J.   
Peppin R. O.
Tiny Bubbles:  Direct Observation of He in IDPs

Flynn G. J.*   Keller L. P.   Miller M. A.
FTIR Detection of Organic Carbon in Interplanetary Dust Particles

Keller L. P.*   Messenger S.
The Petrography and Mineralogy of a Deuterium-rich Cluster IDP

Messenger S.*   Walker R. M.
Possible Association of Isotopically Anomalous Cluster IDPs with Comet 
Schwassmann-Wachmann 3

Bradley J.  P.*   Snow T.   Brownlee D. E.   Keller L. P.   Flynn G. J.   
Miller M.
Optical, Mineralogical, and Trace Element Properties of GEMS:  Evaluating 
the Interstellar Connection

Heinrich M.   Huss G. R.*   Wasserburg G. J.
Automated SEM Identification and Location of Rare Phases

Deutsch A.*   Pesonen L. J.   Greshake A.   Pihlaja P.   Kettrup D.
Pristine Micrometeorites from Finland with an About 1.4 Ga Terrestrial 
Residence Age

Genge M. J.*   Grady M. M.
The Fusion Crusts of the Stony Meteorites:  Implications for Cosmic and 
Meteorite Ablation Spherules

Tuesday, March 17, 1998
POSTER SESSION I
7:30 p.m.     Space Center Houston



MARS PATHFINDER:  IMAGING, DUST, AND ROCKS

Johnson J. R.   Soderblom L.   Kirk R.   Gaddis L.   Reid R.   Smith P. H.   
Lemmon M.   Britt D.   Thomas N.   Bell J.   Bridges N. T.   Anderson R.   
Herkenhoff K.   Murchie S. M.   Dummel A.   Arnold G.   Lampen P.   
Trauthan F.
Photometric Imaging Sequences and Analysis at the Mars Pathfinder Landing 
Site

Murchie S.   Johnson J.   McSween H.   Bridges N.   Anderson R.   Britt D.   
Bell J. F. III   Crisp J.
Spectral Properties of Rocks at the Mars Pathfinder Landing Site

Crisp J. A.
The Effect of Thin Coatings of Dust or Soil on the Bulk APXS Composition 
of the Underlying Rocks at the Pathfinder Landing Site

Pedersen C. T.   Dinesen A. R.   Hviid S. F.   Madsen M. B.   Knudsen J. M.   
Gunnlaugsson H. P.   Goetz W.   Hargraves R. B.
Laboratory Experiments Simulating the Results of the Magnetic Properties 
Experiment on Mars Pathfinder

Kraft M. D.   Greeley R.
Influence of Rock Coatings on Sand Abrasion at the Mars Pathfinder Landing 
Site

Kirk R. L.   Anderson J.   Barrett J.   Becker K.   Becker T.   Bennett A.   
Blue J.   Cook D.   Eliason E.   Gaddis L.   Garcia P.   Gordon M.   Hare T.   
Howington-Kraus A.   Isbell C.   Johnson J.   Lee E.   Morgan H.   Redding B.   
Rosanova T.   Soderblom L.   Sucharski R.   Sucharski T.   Thompson K   
Torson J.   Ward W.   Dorrer E.   Smith P.   Britt D.   
Pathfinder Science Team 
Mapping the Sagan Memorial Station Site with the IMP Camera

Parker T. J.
"Super Resolution" of the Mars Pathfinder Landing Site, Using Manual 
Techniques

Gaddis L.   Soderblom L.   Kirk R.   Johnson J.   Ward W.   Anderson J.   
Barrett J.   Becker K.   Becker T.   Bennett A.   Blue J.   Cook D.   
Eliason E.   Garcia P.   Gordon M.   Hare T.   Howington-Kraus A.   Isbell C.   
Lee E. M.   Redding B.   Rosanova T.   Sucharski R.   Sucharski T.   
Thompson K.   Torson J.   Dorrer E.   Smith P.   Britt D.
The Mars Pathfinder "Super Pan":  A U.S.G.S. Cartographic Product

Kanefsky B.   Parker T. J.   Cheeseman P. C.
Super-Resolution Results from Pathfinder IMP

Stoker C. R.   Blackmon T.   Hagen J.   Kanefsky B.   Rasmussen D.   
Schwehr K.   Sims M.   Zbinden E.
Marsmap:  An Interactive Virtual Reality Model of the Pathfinder Landing 
Site

Hauber E.   Jaumann R.   Mosangini C.   Russ N.   Trauthan F.   Matz K. D.   
Fabel O.
Rocks at the Pathfinder Landing Site, Mars:  Identification and Size 
Distribution

Basilevsky A. T.   Markiewicz W. J.   Keller H. U.
Morphology of Rocks Within and Nearby Rock Garden:  Mars Pathfinder 
Landing Site

Lowman P. D. Jr.
Andesites on Mars:  Implications for the Origin of Terrestrial Continental 
Crust
Nelson D. M.   Greeley R.
Xanthe Terra Outflow Channel Geology at the Mars Pathfinder Landing Site

Marchenko A. G.   Basilevsky A. T.   Neukum G.   Hauber E.   Hoffmann H.   
Cook A. C.
The Study of the Mouth of Ares and Tiu Valles, Mars

Koehler U.   Hiesinger H.   Hauber E.
Terrestrial Analogs to the MPF Landing Site:  Investigation of 
Morphologies of Sander in Northern Iceland



WATER ON MARS

Costard F.   Gosset J. P.
Ground-Ice Distribution on Mars Based on GIS Analysis

Koroshetz J.   Barlow N. G.
Possible Near-Surface Ice Reservoir South of Valles Marineris, Mars

Tanaka K. L.   Dohm J. M.   Lias J. H.   Hare T. M.
Valley Erosion in Thaumasia Region of Mars Caused by Hydrothermal and 
Seismic Activity

Grant J. A.
Geologic Mapping and Drainage Morphometry in Margaritifer Sinus, Mars

Scott E. D.   Wilson L.
Evidence for Fluvial Features Produced by Sill Emplacement on the Upper 
Flanks of Ascraeus Mons Volcano, Mars

Price K. H.   Cantu O. R.   Prouty D. B.
Geologic Mapping of the Dao and Niger Valles Source Region, Mars

Forsythe R. D.   Blackwelder C. W.
Closed Drainage Crater Basins of the Martian Highlands; Constraints on the 
Early Martian
Hydrologic Cycle

Parker T. J.
Mapping of Possible "Oceanus Borealis" Shorelines on Mars:  A Status 
Report

Mosangini C.   Komatsu G.
Geomorphology of Kasei Valles and Scale of Flooding Episodes

Ewing R. C.   Schenk P. M.
Formation of Debris Aprons on Mars:  Viking Stereotopographic Mapping

Demura H.   Abe Y.
Spreading Flow at the Mouth of Outflow Channel on Mars

Kraal E. R.   Wong M. P.   Grosfils E. B.   Gilmore M. S.   Kozak S. J.   
Reinen L. A.
The Origin and Modification of a Trough in the Nili Fossae, Mars

McKenzie D.   Nimmo F.
Martian Dikes, Outflow Channels and Valles Marineris

Kirkland L. E.   Forney P. B.   Herr K. C.
Mariner Mars 6/7 Infrared Spectra:  New Calibration and a Search for Water 
Ice Clouds

Lorenz R. D.
Containerless Thermal Analysis:  In-Situ Microinstrumentation for 
Detecting Ice and Evaporites on Mars

Drake D. M.   Clark B. C.   Jakosky B. M.   Reedy R.   Squyres S. W.
A LiF Silicon Sandwich Counter to Measure Water Content of Planetary 
Surfaces


MARS GLOBAL SURVEYOR RESULTS:  SURFACE AND ATMOSPHERE

Acuna M. H.   Connerney J. E. P.   Wasilewski P. J.   Frey H. V.   Lin R. P.   
Anderson K. A.   Carlson C. W.   McFadden J.   Curtis D. W.   Mitchell D.   
Reme H.   Cros A.   Medale J. L.   Mazelle C.   Sauvand J. A.   D'Uston C.   
Bauer S. J.   Cloutier P.   Mayhew M.   Ness N. F.
Magnetic Field at Mars:  Preliminary Results of the Mars Global Surveyor 
Mission

Aharonson O.   Zuber M. T.   Neumann G. A.   Smith D. E.   Head J. W.
Slopes and Stochastic Properties of the Northern Hemisphere of Mars from 
MOLA Altimetry

Zuber M. T.   Smith D. E.
The Relationship of MOLA Northern Hemisphere Topography to the 6.1 mbar 
Atmospheric Pressure Surface of Mars

Garvin J. B.   Sakimoto S. E. H.   Frawley J. J.
Martian Impact Crater Ejecta Topography as Measured by the Mars Orbiter 
Laser Altimeter (MOLA)

Frey H. V.   Sakimoto S. E. H.   Roark J. H.
MOLA Topography and the Isidis Basin:  Constraints on Basin Center and 
Ring Diameters

Frey H. V.   Sakimoto S. E. H.   Roark J. H.
A Tale of Two Craters:  MOLA Constraints on Timing of the Formation of the 
Crustal Dichotomy Boundary Zone and Its Associated Topography on Mars

Frey H. V.   Sakimoto S. E. H.   Roark J. H.
MOLA Topography and Stratigraphy of Geologic Units at the Dichotomy 
Boundary:
The Medusae Fossae Formation

Ivanov A. B.   Muhleman D. O.
Atmospheric Opacity from Mars Observer Laser Altimiter Observations

Moreau D.   Marten A.   Biraud Y.
Meridional and Seasonal Distributions of Trace Gases in the Lower and 
Middle Atmosphere of Mars


MARS:  THE KITCHEN SINK

Frey H.   Roark J.
Origin of the Western Arabian Shelf:  Oblique Impact Formation of the 
Chryse Basin?

Roddy D. J.   Hare T. M.   Wyatt M. B.   Isbell N. R.   Mardock C. L.   
Soderblom L. M.   Boyce J. M.
II) Martian Impact Craters, Ejecta Blankets, and Related Morphologic 
Features:  Preliminary Results from Computer Digital Inventory Using 
Arc/Info and Arcview

Roddy D. J.   Isbell N. R.   Mardock C. L.   Hare T. M.   Wyatt M. B.   
Soderblom L. M.   Boyce J. M.
I) Martian Impact Craters, Ejecta Blankets, and Related Morphologic 
Features:  Computer Digital Inventory in Arc/Info and Arcview Format

Foxx R.   Brugger C.   Grosfils E.   Reinen L.   Gilmore M.   Kozak S.   
Cooper J.
Morphology and Possible Volcanic Origin of Sub-Kilometer Domes in the 
Arrhenius Region, Mars

Bulmer M. H.   McGovern P. J.
The Role of Mass Movements in the Evolution of Olympus Mons

Head J. W.   Seibert N.   Pratt S.   Smith D.   Zuber M.   Garvin J. B.   
McGovern P. J.   MOLA Science Team 
Volcanic Calderas on Mars:  Initial Views Using Mars Orbiter Laser 
Altimeter Data

Head J. W.   Wilson L.
Tharsis Montes as Composite Volcanoes?:  1. The Role of Explosive 
Volcanism in Edifice Construction and Implications for the Volatile 
Contents of Edifice-forming Magmas

Joens H.-P.
Comparative Planetology:  Coronae on Venus, Mars, and Earth

Joens H.-P.
Oscillation Ridges Along the Flanks of the Tharsis Montes, Mars

Mitchell K. L.   Wilson L.
Implications of the Apparent Absence of Maars in Viking Orbiter Imagery

Anderson R. C.   Golombek M. P.   Franklin B. J.   Tanaka K. L.   Dohm J. M.   
Lias J. H.   Peer B.
Centers of Tectonic Activity Through Time for the Western Hemisphere of 
Mars

Cooper C. D.   Mustard J. F.
Rates of Erosion in Oxia Palus, Mars

Edgett K. S.   Parker T. J.
"Bright" Aeolian Dunes on Mars:  Viking Orbiter Observations

Reese C. C.   Solomatov V. S.   Moresi L.-N.
Non-Newtonian Stagnant Lid Convection:  Application to Mars

Smith D. E.   Zuber M. T.   Lemoine F. G.   Tracadas P.
Gravity Field Modeling and Orbit Determination with MGS

Watters T. R.   Robinson M. S.
Lobate Scarps and the Origin of the Crustal Dichotomy on Mars

Zimbelman J. R.   Johnston A. K.   Patel S. D.
Photogeologic Constraints on the Emplacement of the Medusae Fossae 
Formation, Mars

Stooke P. J.
Locating the Viking 2 Landing Site

CHONDRITES AND PRESOLAR/NEBULA PROCESSES

Genge M. J.   Clark R. J. H.   Firth S.   Batchelder M.   Grady M. M.
Parent Body Aqueous Alteration of Kamacite in the Kakangari Chondrite

Goodrich C. A.   Delaney J. S.
Origin of the Total Iron – Oxidized Iron – D17O Correlations Among Ordinary 
Chondrites


Weisberg M. K.   Prinz M.   Zolensky M. E.   Clayton R. N.   Mayeda T. K.
Petrologic and Oxygen Isotopic Study of Dark Inclusions in the Wells LL3 
Ordinary Chondrite

Bridges J. C.   Franchi I. A.   Sexton A. S.   Pillinger C. T.
Mineralogical Controls on Oxygen Isotopic Exchange in UOCs

Komatsu M.   Reid A. M.
LL Chondrites and Prior's Rules

Noble S. K.   Lofgren G. E.
Melting Histories of Chondrule Precursor Aggregates in UOC's

Newton J.   Franchi I. A.   Pillinger C. T.
An Oxygen Isotope Study of Enstatite Meteorites

Krestina N.   Bogdanovski O.   Jagoutz E.   Kurat G.
A Stepwise Technique of Chondrule Abrasion and Its Application to Study of 
Isotopic Systems in
Single Chondrules

Genge M. J.   Grady M. M.
The Textures and Abundances of Chondrules in the Kakangari Chondrite

Sears D. W. G.   Lyon I.   Saxton J.   Turner G.
The Oxygen Isotope Properties of Olivines and Pyroxenes in Chondrules in 
Ordinary Chondrites

Reisener R. J.   Goldstein J. I.
A Preliminary Study of Zoneless Plessite in Ordinary Chondrites

Sugiura N.   Kiyota K.
H, C and N Isotopic Compositions of Graphite in Three Primitive Ordinary 
Chondrites

Dehn G. A.   McCoy T. J.
The Formational History of the Bencubbin Meteorite:  A Macroscopic 
Analyses

Yu Y.   Wang J.   Zanda B.   Alexander C. M. O'D.   Bourot-Denise M.   
Hewins R. H.
Mass Fractionation of K Isotopes in Chondrule Evaporation Experiments

Connolly H. C. Jr.   Huss G. R.   Hsu W.   Wasserburg G. J.
Formation of Chondrule and Matrix Metal Within CR2 Meteorites as 
Constrained from Their PGE Abundances

Krot A. N.   Petaev M. I.   Meibom A.
Mineralogy and Petrography of Ca-Fe-rich Silicate Rims Around Heavily 
Altered Allende Dark Inclusions

Wadhwa M.   Weisberg M. K.   Crozaz G.   Prinz M.
Did Fayalites in the Kaba CV3 Chondrite Form in an Asteroidal or a Nebular 
Environment?:  Constraints from Mn-Cr Systematics

Kubovics I.   Gál-Sólymos K.   Bérczi Sz.   Ditrói-Puskás Z.   Nagy B.
KABA CV3 Chondrite:  Oriented Overall Texture and Refractory Spherule in a 
New, Large Surface Thin Section

Brearley A. J.   Duke C. L.
Aqueous Alteration of Chondritic Meteorites:  Insights from Experimental 
Low Temperature Hydrothermal Alteration of Allende

Brearley A. J.
Carbonates in CM Carbonaceous Chondrites:  Complex Zoning Revealed by High 
Resolution Cathodoluminescence Studies

Cooper G. W.
Sugars and Other Possible Formaldehyde Products in the Murchison Meteorite

Di Valentin T.   Zolensky M. E.
Iron-Nickel Sulfides in Carbonaceous Chondrite Matrix and Chondrule Rims

Ito M.   Yurimoto H.   Nagasawa H.
Oxygen Isotope Micro-Analysis of CAI by SIMS:  An Evidence for 
Isotopically Anomalous Melilite

Boss A. P.   Foster P. N.
Injection of Lagging Short-lived Isotopes into the Presolar Cloud

Weigel A.   Bühler F.   Bassi M.   Salerno E.   Graf T.   Marti K.
Noble Gas Systematics in Planetary Atmospheres:  Simulation of 
Fractionation Mechanisms Using
Ion Implantation

Phelps A. W.
Aqueous Surface Chemistry of Diamond Grains



DIFFERENTIATED METEORITES

Carlson W. D.   McCoy T. J.
High-resolution X-Ray Computed Tomography of Lodranite GRA 95209

Schnabel C.   Terribilini D.   Herzog G. F.   Eugster O.
Exposure Ages of Lodranite GRA95209 and 36Cl Contents of 7 Lodranites and 
Acapulcoites

Goodrich C. A.
Are Ureilites and Lodranites Simple Residues from Partial Melting of 
Chondritic Material? The Answer from MAGPOX and MELTS

Goodrich C. A.
A Ureilite (Hughes 009) with an Unusual Shock Texture:  Implications for 
the Origin of Metal in Ureilites?

Rooke G. P.   Franchi I. A.   Verchovsky A. B.   Pillinger C. T.
The Relationship Between Noble Gases and the Heavy Nitrogen in Polymict 
Ureilites

Mittlefehldt D. W.   Lindstrom M. M.
Black Clasts from Howardite QUE 94200 — Impacts Melts, Not Primary 
Magnesian Basalts

Weiblen P. W.   Schlutter D. J.
Petrographic Esoterica in Kapoeta and Their Revelance to Noble Gas Studies

Dolph L. E.   Grove T. L.
Kinetic Controls on Minor Element Compositional Variations in Diogenite 
Orthopyroxenes:  Evidence from Dynamic Crystallization Experiments

Floss C.   Crozaz G.
Non-Equilibrium Redistribution of the REE in the Highly Metamorphosed 
Eucrite EET 90020

Garrison D. H.   Bogard D. D.   Lindstrom D. J.
An Unusual Melt Glass with Fission Xe in Eucrite EET90020:  Evidence for a 
Primitive Phase Enriched in U, 244Pu, and LREE

Schwandt C. S.   McKay G. A.   Jones J. H.
Synthetic Eucrite Experiments with Olivine as the First Cumulus Mineral

Wadhwa M.   Davis A. M.
Vapor Deposited Mineral Assemblages in Vesicles of the Eucrite Ibitira

Cowan K. A.   McCoy T. J.
Mass Equivalence and Brecciation in the Mt. Padbury Mesosiderite

Klöck W.   Nakamura K.   Haller M.   Lechtenberg F.   Arndt P.   Knöchel A.
Trace Element Contents of Meteoritic Silicates

Snyder G. A.   Lee D.-C.   Ruzicka A. M.   Taylor L. A.   Halliday A. N.   
Prinz M.
Evidence of Late Impact Fractionation and Mixing of Silicates on Iron 
Meteorite Parent Bodies
Hf-W, Sm-Nd, and Rb-Sr Isotopic Studies of Silicate Inclusions in IIE 
Irons

Pravdivtseva O. V.   Hohenberg C. M.   Meshik A. M.
Distribution of Radiogenic 129Xe Among Individual Mineral Grains of Iron 
Meteorites

Ponganis K. V.   Kohl C. P.   Marti K.
Nitrogen Isotopic Signatures in the Metal Phases of IAB and IIICD Iron 
Meteorites

Killgore M.   McHone J. F.
Small Impact Craters on Sikhote-Alin Iron Meteorite Surfaces


GENERAL METEORITE TOPICS

Toft B.   Aus A.   Ricke M.   Davis D.   Moseman S.   Annexstad J.   
Melchior R.
Examination of Middle Wisconsinan Glacial Deposits for the Possible 
Occurrence of Magnetic Spherules

Harvey R. P.   Schutt J. W.
Deflation and Meteorite Concentrations in the Walcott Névé Region, 
Transantarctic Mountains, Antarctica

Benoit P. H.   Sears D. W. G.
Pairing Unbound:  Fragmentation of Antarctic Meteorites

Benoit P. H.   Akridge J. M. C.   Sears D. W. G.
Rapid Weathering and Terrestrial Thermal History of Meteorites from the 
Nullarbor Plain, Australia

Akridge J. M. C.   Benoit P. H.   Sears D. W. G.
Cosmic Ray Radiation History Examined Using High Temperature 
Thermoluminescence

Hirata N.   Kurita K.   Sekine T.
Experimental Shock Lithification of Porous Powder Mixture

Britt D. T.   Consolmagno G. J.
Dark Asteroids and Dark Meteorite Densities



PLANETARY SURFACE PROCESSES

Cabrol N. A.
Global Survey of Impact Crater-Lakes on Mars:  Their Potential for Major 
Science Return

Grin E. A.   Cabrol N. A.
Ma'adim Vallis Estuarine Delta in Elysium Basin and Its Relevance as a 
Landing Site for Exobiology Exploration on Mars

Grin E.  A.   Cabrol N.  A.   McKay C.  P.
Caves in the Martian Regolith and Their Significance for Exobiology 
Exploration

Wilson G. R.   Greeley R.   Soriano J. F.   White B. R.
Results of Martian Dust Threshold Experiments

Wentworth S. J.   Keller L. P.   McKay D. S.
FEG-SEM Petrography of Lunar Patinas

Gupta A.   Freund F.
Fatty Acids and Glycolamide Extracted from Olivine Single Crystals

Miura Y.   Fukuyama S.   Kobayashi H.
Probable Existence of Pseudo-Life Precursor on the Earth, Mars and Moon

Dombard A. J.   McKinnon W. B.
Viscoelastic Finite Element Modeling of Folding Lithospheres:  Are Thinner 
Lithospheres Required to Match Planetary Observations?

Keszthelyi L.   Self S.
Why Are There Long Channelized Flows on Venus and Mars, But Not the Earth?

Marshall J. R.
"Electrostructural Phase Changes" in Charged Particulate Clouds:  
Planetary and
Astrophysical Implications

Marshall J. R.
"Coulombic Viscosity" in Granular Materials:  Planetary and Astrophysical 
Implications

Crown D. A.   Byrnes J. M.   Baloga S. M.
Scale-dependent Characteristics of Mauna Ulu Pahoehoe Flows

Peitersen M. N.   Crown D. A.
Correlations Between Topography and Intraflow Width Behavior in Martian 
and Terrestrial Lava Flows

Byrnes J. M.   Crown D. A.
Characteristics and Distribution of Pahoehoe Units in the Mauna Ulu 
Compound Flow Field

Anderson S. W.   Smrekar S. E.   Stofan E. R.   Guest J. E.   Wood B.
A Pulsating Lava Flow Inflation Mechanism Revealed in Surface Fractures

Hanley D.   Zimbelman J. R.
Topographic Control of Lava Flow Morphology:  Putting a Number to It

Stofan E. R.   Guest J. E.   Anderson S. W.   Smrekar S. E.
Development of Planetary Lava Flow Fields



PLANETARY INTERIOR PROCESSES

Holzheid A.   Grove T. L.
The Effect of Metal Composition on Metal-Olivine Ni-Fe Exchange 
Distribution Coefficients and Their Relevance to Core-Mantle Element 
Equilibria

Righter K.   Lindstrom D. J.   Martinez R. R.   Hauri E.   Drake M. J.
Determination of Re Contents in Experimental Glasses by Two Techniques:  
Ion Microprobe and Neutron Activation Analysis

Lauer H. V. Jr.   Jones J. H.
Partitioning of Pt and Os Between Solid and Liquid Metal in the Iron-
Nickel-Sulfur System

Hendrickson T. R.   Colson R. O.   Nermoe M. K. B.   Floden A. M
Elemental Migration Along Grain Boundaries as a Process of Chemical 
Differentiation

Choblet G.   Sotin C.
Secular Cooling and Internal Heating:  Implications for Thermal Evolution 
Models of Planetary Mantles


LUNAR MARE VOLCANISM

Keller R. A.   Snyder G. A.   Jerde E. A.   Taylor L. A.   Mitchell J. N.
Apollo 11 Resurrection:  Anorthosite and Mare Basalt Rocklets in the First 
Mare Tranquillitatis Soil Sample

Klein N.   Rutherford M. J.
Volcanic Gas Formed During Eruption of Apollo 17 Orange Glass Magma; 
Evidence from Glassy Melt Inclusions and Experiments

Takata T.
Spectral Analysis of Volcanic Features in Aitken Crater on Lunar Farside
Gillis J. J.   Spudis P. D.
Clementine Color Mosaics of Lunar Far Side Maria

Hiesinger H.   Jaumann R.   Neukum G.   Head J. W. III
Ages of Lunar Mare Basalts



LUNAR REGOLITH

Sisterson J. M.
Status of Production Cross Section Measurements Needed for Cosmic Ray 
Studies

Sisterson J. M.   Caffee M. W.
Neon Production from Al, Mg, Si and Fe:  New Proton Production Cross 
Section Measurements

Sands D. G.   De Laeter J. R.   Rosman K. J. R.
Neutron Capture on 113Cd in Lunar Samples

Pinet P. C.   Shevchenko V. V.   Chevrel S. D.   Daydou Y. H.
Local and Regional Lunar Regolith Characteristics at Reiner Gamma 
Formation

Basu A.
Melt Viscosity and Maturity of Lunar Surface Soils

Ruzicka A.   Snyder G. A.   Patchen A. D.   Taylor L. A.
Lunar Chondrules:  Impact-Melting of Highland Lithologies

Ruzicka A.   Snyder G. A.   Patchen A. D.   Taylor L. A.
Lunar Chondrule Petrography and Mineral Chemistry:  Rims, Relict Grains, 
and Metasomatism

Kminek G.   Foing B. H.   Euromoon Team
Possible Mobile Surface Payload for the Euromoon Mission

Allton J. H.
A Brief History of Organic Contamination Monitoring of Lunar Sample 
Handling

Basu A.   Foss J.   Wentworth S. J.   McKay D. S.
Agglutinate-rich Apollo 11 Regolith Breccia 10068


LUNAR HIGHLANDS AND GLOBAL PROPERTIES

McCallum I. S.   Schwartz J. M.   Jolliff B. L.   Floss C.
Petrology and Cooling History of Monzogabbro Sample 14161,7373

Shervais J. W.   McGee J. J.
Magma Mixing in the Petrogenesis Alkali Suite Anorthosites:  Reverse 
Zoning in Plagioclase, 14305,303

Tompkins S.
Mafic Plutons in the Lunar Highland Crust

Martin P. D.   Pinet P. C.   Chevrel S. D.   Daydou Y. H.
Highland Crust Diversity and Mare-Highland Mixing Relationships in the 
Mare Humorum Region of the Moon:  A Closer Look with UV/VIS Clementine 
Multispectral Images

McGee J. J.   Shervais J. W.
Modeling Crystallization of Alae Lava Lake, Hawaii, and Relevance for 
Lunar Crustal Petrogenesis

Jolliff B. L.   Korotev R. L.   Haskin L. A.
The Apollo 17 Central Crater Cluster and a New Look at Possible Tycho 
Components in the Soil

Shearer C. K.   Newsom H. E.
W-Hf Isotope Abundances and the Early Origin and Evolution of the Moon and 
Earth

Williams J. G.   Krisher T. P.   Boggs D. H.   Ratcliff J. T.   Dickey J. O.
Lunar Dissipation:  Rotational and Orbital Consequences

von Frese R. R. B.   Potts L. V.   Tan L.   Kim J. W.   Leftwich T. E.   
Merry C. J.   Bossler J. D.
Comparative Crustal Modeling of the Moon and Earth from Topographic and 
Gravity Correlations



LUNAR REMOTE SENSING AND SAMPLES

Lucey P. G.   Taylor G. J.   Hawke B. R.
Apollo Landing Site Validation of Lunar Prospector Fe and Ti Measurements 
Using High Resolution Clementine Multispectral Imaging

Clark P. E.   Basu A.
Pyroxene Versus Total Iron in Lunar Landing Site Soils, Spectral 
Reflectance, and Gamma-Ray Observations

Kaydash V. G.   Shkuratov Yu. G.
Fe, Ti, and Is/FeO Maps for the Lunar Nearside:  New Estimations by 
Optical Data

Stockstill K. R.   Spudis P. D.
Geology and Deposits of the Hertzsprung Basin, Lunar Far Side

Yingst R. A.   Head J. W. III
The Nature of the Mafic Anomaly in the South Pole-Aitken Basin Floor:  
Evidence from a Multispectral Analysis of Lava Pond Soils

Thomson B. J.   Spudis P. D.   Bussey D. B. J.
Impact Craters as Probes of the Lunar Crust

Hayashi A.   Hawke B. R.   Blewett D. T.   Smith G. A.   Lucey P. G.
Spectral Studies of the Menelaus Region of the Moon

Gaddis L. R.   Rosanova C.   Hare T.   Hawke B. R.   Coombs C.   Robinson M.
Small Lunar Pyroclastic Deposits:  A New Global Perspective

Rosanova C. E.   Gaddis L.   Hare T. M.   Coombs C.   Hawke B. R.   
Robinson M. S.
Characterization of "New" Pyroclastic Deposits on the Moon Using 
Clementine Data

Chevrel S. D.   Rosemberg C.   Pinet P. C.   Shevchenko V. V.   Daydou Y.
Lunar Swirl-like Terrains Exploration:  The Case of Mare Ingenii

Craddock R. A.   Howard A. D.
Simulated Degradation of Lunar Impact Craters and a New Method for Age 
Dating Local Geologic Units

Grier J. A.   McEwen A.   Aragon C.   Strom B.   Ingram J.
A Preliminary Look at Bright Lunar Craters Using the Clementine Global 
Mosaic

Lucey P. G.   Hinrichs J. L.   Budney C.   Smith G.   Frost C.   Hawke B. R.   
Malaret E.   Robinson M. S.   Bussey B.   Duxbury T.   Cook D.   Coffin P.   
Eliason E.   Sucharski T.   McEwen A. E.   Pieters C. M.
Calibration of the Clementine Near Infrared Camera:  Ready for Prime Time

Le Mouelic S.   Langevin Y.   Erard S.
Analysis of the Clementine NIR Data Set. Application to Aristarchus and 
Tsiolkovsky

Pieters C. M.   Taylor L. A.
Visible to Mid-Infrared Spectra of Lunar Mare Soils

Lawson S. L.   Jakosky B. M.   Colwell J. E.
Thermal Emission from the Lunar Surface:  Impact Crater Temperature 
Modeling and Clementine
Long-Wave Infrared Data

Shepard M. K.   Campbell B. A.
Hagfors Revisited:  Near-Nadir Coherent Scattering from a Fractal Surface

Margot J. L.   Campbell D. B.   Jurgens R. F.   Slade M. A.   Stacy N. J.
The Topography of the Lunar Polar Regions from Earth-based Radar 
Interferometry

Bussey D. B. J.   Spudis P. D.   Nozette S.   Lictenberg C. L.
Analysis of the Lunar Polar Lighting Conditions, as Seen by Clementine

Vilas F.   Jensen E. A.   Domingue D. L.   McFadden L. A.   Coombs C. R.
An Unusual Photometric Signature Detected on Lunar Complex Crater Rims at 
the South Pole

Feldman W. C   Binder A. B.   Barraclough B. L.   Belian R. D.
First Results from the Lunar Prospector Spectrometers


COSMIC DUST

Flynn G. J.   Keller L. P.   Jacobsen C.   Wirick S.
Carbon Mapping and Carbon-XANES Bonding State Measurements on 
Interplanetary Dust Particles

Nittler L. R.   Messenger S.
Hydrogen and Nitrogen Isotopic Imaging of Interplanetary Dust

Borg J.   Bibring J.-P.   d'Hendecourt L.   Quirico E.   Dumas P.   
Williams G. P.   Quitté G.
Synchrotron InfraRed Microspectrometry of Extraterrestrial Particles

Romstedt J.
Submicron Phases on Cosmic Spherules and Stratospheric Particles Imaged by 
Atomic Force Microscopy

Graham G. A.   Kearsley A. T.   Grady M. M.   Wright I. P.   Hough R. M.   
Herbert M. K.   McDonnell J. A. M.
Debris Retention from Hypervelocity Impacts in Solar Cells:  Natural and 
Simulated

Graham G. A.   Kearsley A. T.   Grady M. M.   Wright I. P.   
McDonnell J. A. M.
Micrometeoroid Residues Collected in Low Earth Orbit

Westphal A. J.   Flynn G. J.   Sutton S. R.   Bunch T.   Borg J.   Bibring J.-
P.   Chardin A.
Identification and Chemical Composition of Particles Captured in Aerogel 
Flown on the Mir Space Station

Hörz F.   Zolensky M.   Cress G.   Bernhard R. P.   See T. H.   Warren J. H.   
Brownlee D. E.   Tsou P.
ODC:  Aerogel Particle Capture During 18 Months Exposure on MIR

Joswiak D. J.   Brownlee D. E.
Atmospheric Entry Melting in 5 – 15 µm Hydrous IDPs:  Evidence from 
Analytical TEM Studies and
Pulse-Heating Experiments

Kortenkamp S. J.   Dermott S. F.
Accretion of Cometary Interplanetary Dust Particles

Gaskin J.   Zook H.   Liou J.-C.
Lunar Ejecta Trajectory Study Utilizing a Gauss-Radau Integrator

Moses J. I.   Bézard B.   Lellouch E.   Feuchtgruber H.   Allen M.
Micrometeoritic Bombardment of Saturn. II. Implied Total Flux and Effects 
on Photochemistry

Moses J. I.
Micrometeoritic Bombardment of Saturn. I. Ablation Profiles


IMPACT

Gupta S. C.   Ahrens T. J.
Shock Vaporization of Anhydrite and Global Cooling from K/T Impact

Ivanov B. A.   Kostuchenko V. N.
Impact Crater Formation:  Dry Friction and Fluidization Influence on the 
Scaling and Modification

Cintala M. J.   Berthoud L.   Hörz F.
Impact Craters in the Laboratory:  Relationships Between Impact and 
Ejection Velocities

Housen K. R.   Voss M. E.
Target-Size Effects in Collisional Fragmentation of Rock

Forsberg N. K.   Herrick R. R.   Bussey B.
The Effects of Impact Angle on the Shape of Lunar Craters

Borucki J. G.   Freund F.
Impact-generated Electric Charges in Igneous Rocks

Leroux H.   Reimold W. U.   Koeberl C.   Hornemann U.   Armstrong R. A.
Experimental Shock Deformation of Zircon

Wolbach W. S.   Widicus S.   Moecker S.   Kyte F. T.
Is the Soot Layer at the KT Boundary Really Global?

Armendarez L. P.   Wdowiak T. J.   Agresti D. G.   Wade M. L.
Mössbauer Spectroscopy of K-T Boundary Clays from North American and 
European Sites

Corrigan C. M.   Sharpton V. L.   Vogel T. A.   Marin L. E.
Chemical Compositions of Chicxulub Impact Breccias

Claeys P.   Heuschkel S.   Rocchia R.   Robin E.   Stöffler D.
The Two Different Melt Rocks of the Chicxulub Impact Crater and Where is 
the Ir Anomaly ?

Persaud P.   Sharpton V. L.
Correlation of Well Data for the Chicxulub Impact Structure Using Gravity 
and Magnetic Anomalies

Morgan J.   Christeson G.   Brittan J.   Warner M.   Chicxulub Working Group
The Chicxulub Seismic Experiment:  Subsurface Velocity Structure

Matsui T.   Nakano Y.   Horai K.   Wada K.   Tajika E.   Hernandez R.   
Campos J. O.
Heat Flow Anomaly in the Chicxulub Crater

Miura Y.   Fukuyama S.   Kobayashi H.   Gucsik A.
New Impact Evolution Model of Formation Process at the End of Cretaceous 
Period

Dressler B. O.   Sharpton V. L.
Coexisting Pseudotachylite and Rock Glasses at the Haughton Impact Crater, 
Canada

Marshall J. R.   Bratton C.   Pope K. O.   Ocampo A. C.
Diagnostic Clast-Texture Criteria for Recognition of Impact Deposits

Polsky C. H.   McHone J. F.
Raman Spectroscopic Confirmation of Metastable Cristobalite in Melt 
Samples from the
Wanapitei Impact Structure

Buchanan P. C.   Koeberl C.   Reimold W. U.
Petrology of the Rooiberg Group, Bushveld Complex, South Africa

Komatsu G.   Olsen J. W.   Baker V. R.
A Possible Impact Crater Structure in Southern Mongolia

Blom R. G.   McHone J. F.   Crippen R. E.
Satellite Detection of Possible 770 m Diameter Impact Crater at 18 Degrees 
9 Minutes North 50 Degrees 4 Minutes East, Yemen Arab Republic

Zimbelman J. R.   Johnston A. K.
An Intriguing Circular Structure in Eastern Australia:  A Non-Impact 
Crater-like Feature

Master S.   Duane M. J.
The "Nyika Plateau Structure," Malawi (Central Africa) Rediscovered:  Not 
an Astrobleme

Wednesday, March 18, 1998
JUPITER'S SATELLITES:  GALILEO RESULTS IN THE PRIME MISSION
8:30 a.m.     Room A

Chairs:	T. V. Johnson
	J. W. Head III

McEwen A. S.*   Keszthelyi L.   Geissler P.   Simonelli D. P.   Carr M. H.   
Johnson T. V.   Klaasen K. P.   Breneman H. H.   Jones T. J.   Kaufman J. M.   
Magee K. P.   Senske D. A.   Belton M. J. S.   Schubert G.
Io:  Extreme Volcanism

Lopes-Gautier R.*   Davies A. G.   Smythe W.   Carlson R.   Kamp L.   
Leader F.   Nehlman R.   Soderblom L.   Galileo NIMS Team 
Io's Hot Spots:  Results from the Near-Infrared Mapping Spectrometer 
(NIMS) on the Galileo Spacecraft

Matson D. L.*   Blaney D. L.   Johnson T. V.   Veeder G. J.   Davies A. G.
Io and the Early Earth

Greeley R.*   Klemaszewski J.   Kadel S.   Sullivan R.   Pappardo R.   
Head J. III   Neukum G.   Denk T.   Moore J.   Greenberg R.   Geissler P.   
Tufts R.   Hoppa G.   Galileo Imaging Science Team 
Europa in the Prime Galileo Mission

Greenberg R.*   Hoppa G. V.   Geissler P. E.   Tufts B. R.   Durda D. D.   
Galileo Imaging Team 
Tidal Stress on Europa:  Non-Synchronous Rotation and Diurnal Variations

Smythe W. D.*   Carlson R. W.   Ocampo A.   Matson D.   Johnson T. V.   
McCord T. B.   Hansen G. E.   Soderblom L. A.   Clark R. N.
Absorption Bands in the Spectrum of Europa Detected by the Galileo NIMS 
Instrument

McCord T. B.*   Hansen G. B.   Fanale F. P.   Carlson R. W.   Matson D. L.   
Johnson T. V.   Smythe W.   Crowley J. K.   Martin P. D.   Ocampo A.   
Hibbitts C. A.   Granahan J. C.   Galileo NIMS team
Salts on Europa's Surface from the Galileo NIMS Investigation

Head J. W.*   Pappalardo R. T.   Prockter L. M.   Collins G.   Belton M. J. S.   
Carr M.   Chapman C.   Greeley R.   Greenberg R.   McEwen A.   Neukum G.   
Pilcher C.   Veverka J.   Johnson T.   Klaasen K.   Senske D.   Magee K.   
Breneman H.   Kaufman J.   Jones T.   Helfenstein P.   Oberst J.   Giese B.   
Denk T.   Morrison D.   Moore J.   Galileo Solid State Imaging Team 
Ganymede:  Overview of Solid State Imaging (SSI) Findings from the Nominal 
Galileo Mission

Collins G. C.*   Head J. W.   Pappalardo R. T.   Galileo SSI Team
Analysis of Regional Stratigraphic Relationships in Ganymede Grooved 
Terrain:  Galileo Results

Klemaszewski J. E.*   Greeley R.   Homan K. S.   Bender K. C.   Chuang F. C.   
Kadel S.   Sullivan R. J.   Chapman C.   Merline W. J.   Moore J.   Wagner R.   
Denk T.   Neukum G.   Head J.   Pappalardo R.   Prockter L.   Belton M.   
Johnson T. V.   Pilcher C.   Galileo SSI Team 
Galileo at Callisto:  Overview of Nominal Mission Results

Hendrix A. R.*   Barth C. A.   Hord C. W.   Lane A. L.   Tobiska W. K.   
Simmons K. E.
Disk-resolved Observations of the Ultraviolet Absorber on Callisto's 
Leading Hemisphere

Neukum G.*   Wagner R.   Wolf U.   Ivanov B. A.   Head J. W. III   
Pappalardo R. T.   Klemaszewski J. E.   Greeley R.   Belton M. J. S.   
Galileo SSI Team 
Cratering Chronology in the Jovian System and Derivation of Absolute Ages

Chapman C. R.*   Merline W. J.   Bierhaus B.   Brooks S.   
Galileo Imaging Team
Cratering in the Jovian System:  Intersatellite Comparisons


Wednesday, March 18, 1998
ACHONDRITES
8:30 a.m.     Room B

Chairs:	C. Floss
	J. Longhi

Wadhwa M.*   Shukolyukov A.   Lugmair G. W.
53Mn-53Cr Systematics in Brachina:  A Record of One of the Earliest Phases 
of Igneous Activity on an Asteroid

Floss C.*
Acapulcoite – Lodranite Petrogenesis:  Clues from Trace Element 
Distributions in Individual Minerals

McCoy T. J.*   Carlson W. D.
Opaque Minerals in the GRA 95209 Lodranite:  A Snapshot of Metal 
Segregation

Goodrich C. A.*
A Precise Fe/Mg-Fe/Mn Trend for Lodranite Olivine:  Comparison to 
Ureilites

Franchi I. A.*   Sexton A. S.   Wright I. P.   Pillinger C. T.
Oxygen Isotopic Homogeneity in the Ureilite Population

Scherer P.*   Zipfel J.   Schultz L.
Noble Gases in Two New Ureilites from the Saharan Desert

Fogel R. A.*
Silicate Melt Inclusions in Aubrites

Dickinson T. L.*   McCoy T. J.   Lofgren G. E.
Melting of Indarch (EH4) Powders:  Phase Relations and Elemental Exchange

Mittlefehldt D. W.*   Jones J. H.   Palme H.   Jarosewich E.   Grady M. M.
Sioux County — A Study in Why Sleeping Dogs are Best Left Alone

Buchanan P. C.*   Mittlefehldt D. W.   Hutchison R.   Koeberl C.
Piplia Kalan:  Is It a Monomict Eucrite or a Metamorphosed Polymict 
Eucrite?

Yanai K.*
Unbrecciated-Holocrystalline Achondrite with Howardite Composition

Wood J. A.*
The HED Parent Body:  Thermal and Sr Isotope Evolution

Longhi J.*
Angrite Petrogenesis:  Evidence of Accretion in a Thermally Zoned Nebula

Wednesday, March 18, 1998
MARS FLUVIAL, IMPACT, AND TECTONIC PROCESSES
8:30 a.m.     Room C

Chairs:	V. C. Gulick
	A. P. Zent

Costard F.*   Gautier E.
Siberian Rivers and Martian Outflow Channels:  An Analogy

Mest S. C.*   Crown D. A.   Craddock R. A.   Zimbelman J. R.
Topographic Characteristics of Outflow Channels in the Martian Southern 
Highlands

Howard A. D.*   Craddock R. A.
Simulation of Erosion of Ancient Cratered Terrain on Mars

Craddock R. A.*   Maxwell T. A.   Howard A. D.
The Evidence for Rainfall on Early Mars

Ori G. G.*   Baliva A.
Lacustrine and Fluvial Sedimentary Environments in Ismenius Lacus and 
Memnonia, Mars

Gulick V. C.*   Dohm J.   Tanaka K.   Hare T.
The Origin of Warrego Valles:  A Case Study for Fluvial Valley Formation 
on Early Mars

De Hon R. A.*
Martian Highland Lakes

Lee P.*   Bunch T. E.   Cabrol N.   Cockell C. S.   Grieve R. A. F.   
McKay C. P.   Rice J. W. Jr.   Schutt J. W.   Zent A. P.
Haughton-Mars 97 — I:  Overview of Observations at the Haughton Impact 
Crater, a Unique Mars Analog Site in the Canadian High Arctic

Zent A. P.*   Bunch T. E.   Lee P. C.   Rice J. W.   McKay C. P.   
Schutt J. W.   Grieve R. A. F.
The Role of Brecciation in Controlling Morphology at Haughton Crater:  
Climatic Implications for Mars

Joens H.-P.*
On the Origin of the Etched Terrain, Mars

Schultz R. A.*
Planetary Fault Population — What Do They Tell Us?

Cabrol N. A.*   Grin E. A.   Landheim R.   McKay C. P.
Cryovolcanism as a Possible Origin for Pancake-Domes in the Mars 98 
Landing Site Area:  Relevance for Climate Reconstruction and Exobiology 
Exploration

Wednesday, March 18, 1998
PLANETARY INTERIOR PROCESSES
8:30 a.m.     Room D

Chairs:	C. B. Agee
	K. Righter

Jagoutz E.*
Models on SNC Differentiation Proceses as Constraint by Isotopes

Brandon A. D.*   Walker R. J.   Morgan J. W.   Goles G. G.
Re-Os Isotopic Constraints on the Chemical Evolution and Differentiation 
of the Martian Mantle

Blichert-Toft J.   Gleason J. D.*   Albarède F.   Kring D. A.   Hill D. H.   
Boynton W. V.
The Hf Isotopic Compositions of Zagami and QUE94201:  A Garnet-free 
Depleted Martian Mantle?

Bertka C. M.*   Fei Y.
Implications of Pathfinder Data for the Bulk Iron Content of Mars

Bills B. G.*   James T. S.
Is Mars Rotationally Unstable?

Chabot N. L.*   Drake M. J.
The Effect of S on the Solubility of K in Metal

Borisov A.*   Nachtweyh K.
Ru Solubility in Silicate Melts:  Experimental Results in Oxidizing Region

Floden A. M.*   Colson R. O.   Nermoe M. K. B.   Hendrickson T. R.
Effects of CO on the Activity of Nickel in a Simple Silicate Melt

Grasset O.*   Parmentier E. M.
Thermal Convection in a Volumetrically Heated Fluid with Strongly 
Temperature Dependent Viscosity:  Implications for Planetary Thermal 
Evolution

Parmentier E. M.*   Hess P. C.
On the Possible Role of Chemical Stratification in the Evolution of the 
Moon

Nimmo F.*   McKenzie D.
Modelling Plume-related Uplift, Gravity and Melting on Mars

Papike J. J.*
Comparative Planetary Mineralogy:  Chemistry of Melt-derived Pyroxene, 
Feldspar, and Olivine

Wednesday, March 18, 1998
DISCOVERY SPECIAL PLENARY SESSION
1:30 p.m.    Room C

Chair:	D. P. Blanchard

Wesley T. Huntress
The Discovery Program

Donald S. Burnett
The Genesis Mission

Joseph Veverka
The Comet Nucleus Tour (CONTOUR) Mission

Alan Binder
Lunar Prospector


Wednesday, March 18, 1998
ORIGIN OF THE EARTH AND MOON
2:30 p.m.     Room A

Chairs:	M. J. Drake
	A. N. Halliday

Cameron A. G. W.*   Canup R. M.
The Giant Impact Occurred During Earth Accretion

Canup R. M.*   Levison H. F.   Stewart G. R.
Stability of a Terrestrial Multiple Moon System

Pepin R. O.*
The Isotopic Composition of Argon in the Solar Wind, and Evidence for the 
Presence of Solar Argon in the Earth's Deep Mantle

Yin Q. Z.*   Jacobsen S. B.
The 97Tc–97Mo Chronometer and Its Implications for Timing of Terrestrial 
Accretion and Core Formation

Halliday A. N.*   Lee D-C.
Accretion Rates and the Tungsten and Lead Isotopic Compositions of the 
Earth and Moon

Jacobsen S. B.*   Yin Q. Z.
W Isotope Variations and the Time of Formation of Asteroidal Cores and the 
Earth's Core

Agee C. B.*   Shannon M. C.   Li J.
Element Partitioning Between Aluminous Perovskite and Magnesiowuestite in 
Ordinary Chondrite

Schmitz M. D.   Holzheid A.*   Grove T. L.
Core Formation in the Earth:  Insights from Textural Equilibria of 
Coexisting Silicate Melt, Solid Silicate, and Fe-S-O Melt

Righter K.*   Drake M. J.
Metal-Silicate Equilibrium in the Early Earth — New Constraints from 
Volatile Moderately Siderophile Elements Ga, Sn and Cu

Holzheid A.*   Sylvester P.   Palme H.   Borisov A.   Rubie D. C.
Solubilities of Pt, Ir, and Pd in Silicate Melts at High Pressures

Wednesday, March 18, 1998
CHONDRITE POTPOURRI
Session dedicated to the memory Paul Pellas
2:30 p.m.     Room B

Chairs:	J. N. Grossman
	M. K. Weisberg

Weber H. W.   Schultz L.*
The Noble Gas Record of Rumuruti-Chondrites

Weisberg M. K.*   Prinz M.
Sahara 97096:  A Highly Primitive EH3 Chondrite with Layered Sulfide-
Metal-rich Chondrules

Akridge G.*   Sears D. W. G.
Chondrule and Metal Size-Sorting in Asteroidal Regoliths:  Experimental 
Results with Implications for Chondritic Meteorites

Benoit P. H.*   Akridge G.   Sears D. W. G.
Size Sorting of Metal, Sulfide, and Chondrules in Sharps (H3.4)

Chen J. H.*   Papanastassiou D. A.   Wasserburg G. J.
Re-Os Systematics in Ordinary Chondrites and Acapulco

Hsu W.   Huss G. R.*   Wasserburg G. J.
Ion Probe Analyses of PGEs in Metallic Phases of Chondrites:  Implications 
for the Origin of
Chondritic Metals

Grossman J. N.*
Radial Pyroxene and Cryptocrystalline Chondrules as Indicators of Aqueous 
Alteration and Thermal Metamorphism in Ordinary Chondrites

Mendybaev R. A.*   Beckett J. R.   Grossman L.   Stolper E.
Kinetics and Volatilization of SiC and SiO2:  Implications for 
Metamorphism of Unequilibrated
Ordinary Chondrites

Kring D. A.*   Jull A. J. T.   McHargue L. R.   Hill D. H.   Cloudt S.   
Klandrud S.
Gold Basin Meteorite Strewn Field:  The 'Fossil' Remnants of an Asteroid 
that Catastrophically Fragmented in Earth's Atmosphere

Gladman B. J.*   Morbidelli A.
A Problem (?) with Chondrite Delivery Time Scales

Campins H.*   Swindle T. D.
Are There Cometary Meteorites?

Wednesday, March 18, 1998
ASTEROID ÉTOUFÉE
2:30 p.m.     Room C

Chair:	G. J. Consolmagno


Consolmagno G. J.*   Britt D. T.
Ordinary Chondrite Model Porosities and the Structure of Asteroids

van der Bogert C. H.*   Schultz P. H.   Spray J. G.
Friction Melting-related Darkening and Veining in Meteorites:  
Experimental Results

Wilson L.*   Keil K.   Browning L. B.   Krot A. N.
Early Aqueous Alteration, Disruption and Re-Processing of Asteroids

Sears D. W. G.*
Endogenous Surface Processes on Asteroids, Comets, and Meteorite Parent 
Bodies

Delzeit L.*   Blake D. F.
A Preliminary Study of Crystalline Ice Nanoclusters Using Electron 
Microscopy

Wednesday, March 18, 1998
OUTER PLANET SATELLITE SPECTRA (PLUS TITAN)
3:45 p.m.     Room C

Chair:	P. M. Schenk


Domingue D. L.*   Lane A. L.
The Role of Sulfur Dioxide on the Icy Galilean Satellites

Beyer R. A.*   Domingue D. L.   Lane A. L.
Analysis of Spatial and Temporal Variations in Io's Ultraviolet 
Reflectance

Roush T. L.*   Geballe T.   Cruikshank D. P.   Owen T.   Benedix G.   
Dalle Ore C. M.
Water Ice on Titania and Oberon:  New High Resolution Near-Infrared (1.4 – 
2.52 µm) Spectra

Grundy W. M.*   Schmitt B.   Buie M. W.   Schwartz M.
New Temperature-dependent Near-Infrared Absorption Spectra of Hexagonal 
H2O Ice:  Application to Uranian Satellites and Identification of Bound 
Water

Lorenz R. D.*
Many Lakes Make an Ocean:  Constraining Titan's Volatile Inventory

Wednesday, March 18, 1998
IRON METEORITES
2:30 p.m.     Room D

Chairs:	J. T. Wasson
	D. A. Papanastassiou

Papanastassiou D. A.*   Wasserburg G. J.
Re-Os Constraints in Silicate-bearing Iron Meteorites

Hsu W.*   Huss G. R.   Wasserburg G. J.
In Situ Ion Probe Measurements of PGEs and Their Distributions Between 
Metallic Phases of Irons

Smoliar M. I.*
Ru Isotopic Anomalies in Iron Meteorites:  Outlook for the Tc-Ru-Mo 
Chronometers

Wasson J. T.*
Trapped Melt and Excess Au in IIIAB Irons; Fractionation of the IIIAB 
Magma

Ulff-Møller F.*
Solubility of Chromium and Oxygen in Metallic Liquids and the Co-
Crystallization of Chromite and Metal in Iron Meteorite Parent Bodies

Maruoka T.*   Matsuda J.   Kurat G.
Noble Gas Isotopic Compositions in Graphite of the Bohumilitz IAB Iron

Takeda H.*   Hsu W.   Huss G. R.   Wasserburg G. J.
Silicate Inclusions in the Colomera IIE Iron and Segregation of Partial 
Melts

Ruzicka A.*   Prinz M.   Snyder G. A.   Taylor L. A.
Major-Element Compositions and Mineralogies of Silicate Inclusions in IIE 
Iron Meteorites:
Impact-induced or "Planetary" Differentiation?

Thursday, March 19, 1998
SPECIAL SESSION
EDUCATION EXHIBITS AND POSTERS
10:00 a.m.     Space Center Houston



Albin E. F.
Build Olympus Mons!

Bérczi Sz.   Cech V.   Hegyi S.   Borbola T.   Diósy T.   Köllõ Z.   Tóth Sz.
Planetary Geology Education Via Construction of a Planetary Lander Probe

Bérczi Sz.   Cech V.   Hegyi S.   Fabriczy A. Sz.   Lukács B.
Technology/Environment "Chesstable":  Cross-Effects Between Planetary 
Currents and Technologies

Clark V. K.   Boice D. C.
Our Dynamic Earth:  An Earthquake Activity for High School Students

Coombs C. R.   Docal T. A.   Dasch E. J.   Colgan M.
Space Science and Education:  A Collaboration to Enhance Lifelong Learning

Croft S. K.   McGee S. M.   Pompea S. M.
Astronomy Village:  Investigating the Solar System, a New Multimedia 
Educational Package for
Middle-School Students

Grosfils E. B.   Reinen L. A.   Gilmore M. S.   Kozak S. J.
The 1997 Keck Planets Project:  Volcanism and Tectonism on Venus and Mars

Lindstrom M. M.   Allen J. S.   Rhoads N.   Tobola K.   Stocco K.
STEP into Mars Research — A Mentoring Experience for Secondary Teachers

Peitersen L. E. B.   Peitersen M. N.
The La Roche Junior Science Institute:  A Project Oriented Approach to 
Space Science Education

Rshaid G. F.
Mars Academy:  Student Astronauts in (Cyber)space

Schenk P.   Gwynn D.   Tutor J.
A 3-D Tour of the Solar System:  A CD-ROM and Slide Set for Educators

Seybold C. C.   Fowler W. T.
LiftOff '98. A Summer Institute for 7th–12th Grade Science and Math 
Teachers

Seybold C. C.   Fowler W. T.
Texas Space Grant Consortium Public Service Projects. What is the 
Consortium, and, as a Teacher, What Does It Do for Me?

Seybold C. C.   Fowler W. T.
Outreach for the TOPEX/Poseidon Mission:  University Partners and NASA. A 
Case Study

Smailbegovic A. A.   Coombs C. R.
Another Small Step:  Contact Light — Virtual Lunar Fieldtrip CD-ROM

Stockman S. A.   Alvarez M. C.   Albert T. J. Jr.
Bringing Mars Exploration into the K–12 Classroom:  The Mars Orbiter Laser 
Altimeter Education Program

Treiman A. H.   Shelfer T. D.   Anz-Meador D.   Thompson P.
Teaching Spectroscopy by Doing:  A Simple, Hand-Held Reflectance 
Spectrometer for Planetary Science and Remote Sensing

Urquhart M. L.   Morrow C. A.
Saturn in the Classroom:  Hands-On Activities and the New Cassini Teacher 
Guide

Thursday, March 19, 1998
MARTIAN SPECTRAL CHARACTERISTICS 
AND TERRESTRIAL ANALOGS
Session dedicated to the memory of Leonard Martin
8:30 a.m.     Room A

Chairs:	P. R. Christensen
	W. M. Calvin

Christensen P. R.*   Bandfield J.   Hamilton V.   Lane M.   Ruff S.   
Anderson D. L.   Clark R. N   Roush T. L.
The Composition of Martian Surface Materials as Determined from the Mars 
Global Surveyor Thermal Emission Spectrometer

Bandfield J. L.*   Christensen P. R.   Anderson D. L.
Target Factor Analysis:  Application to Optimization of Spectral 
Endmembers from the Thermal Emission Spectrometer Experiment Aboard Mars 
Global Surveyor

Kieffer H. H.*   Titus T. N.   Mullins K. F.
Early TES Observations of the South Polar Region

Moersch J.*   Carter L.   Bell J. III   Hayward T.   Nicholson P.   Squyres S.   
Van Cleve J.
A Martian Global Thermal Infrared Spectral Map

Klassen D. R.*   Bell J. F. III   Clark R. N.   Golisch W.   Kaminski C. D.   
Griep D.
3–4 Micrometer Imaging Spectroscopy of Mars

Piatek J. L.*   Christensen P. R.
Vibrational Spectroscopy of Clay Minerals:  Implications for Remote 
Sensing of Mars

Basu A.*   Schmitt J.   Crossey L. J.
An Argument for Zeolites in Mars Rocks and an Earth Analog

Calvin W. M.*
The Potential for Ferrous Clays on Mars

Lane M. D.*   Christensen P. R.
Salt Minerals Predicted for Mars and Their Thermal Infrared Emission 
Spectra

Hamilton V. E.*   Christensen P. R.
Determination of Pyroxene Mineralogy on Mars:  Preliminary Results from 
the
Thermal Emission Spectrometer

Clark I. H. D.*
A Three-Dimensional Tilted-Facet Surface Reflectance and Volume Scattering 
Model for
Coated Rock Surfaces

Schultz P. H.*   Mustard J. F.
Martian Impact Glass:  Generation and Evidence

Morris R. V.*   Golden D. C.   Allen C. C.   Ming D. W.   Mertzman S.   
Thompson D. R.
Major Element Fractionation During Hydrolytic and Sulfuric Weathering on 
Mauna Kea Volcano:  Implications for Weathering on Mars

Thursday, March 19, 1998
PRESOLAR GRAINS
8:30 a.m.     Room B

Chairs:	B. S. Meyer
	L. R. Nittler

Hoppe P.*   Eberhardt P.   Amari S.   Lewis R. S.
Study of Si- and Fe-Isotopic Compositions in Presolar Silicon Carbide 
Grains of Type X

Amari S.*   Zinner E.   Lewis R. S.
A Singular Presolar SiC Grain with Unusual Si-Isotopic Ratios

Alexander C. M. O'D.*   Nittler L. R.
Galactic Chemical Evolution of Si and Ti Isotopic Ratios and Presolar SiC 
Grains

Choi B.-G.*   Huss G. R.   Wasserburg G. J.
Presolar Corundum and Spinel from the Bishunpur and Semarkona Ordinary 
Chondrites

Chigai T.*   Yamamoto T.   Kozasa T.
Origin of Presolar Grains:  Formation of TiC Core-graphitic Spherules in 
Carbon-rich AGB Stars

Bernatowicz T.*   Amari S.   Messenger S.   Lewis R.
Internal Structure and Composition of Presolar Graphites from Supernovae

Nicolussi G. K.   Pellin M. J.*   Davis A. M.   Lewis R. S.   Clayton R. N.
Zr and Mo Isotopes in Single Presolar Graphite Grains:  A Record of 
Stellar Nucleosynthesis

Nazarov M. A.   Hoppe P.   Brandstaetter F.   Kurat G.*
Presolar Trace Element Signature in P-rich Sulfide from a CM Chondrite 
Clast in the Erevan Howardite?

Zinner E.*   Amari S.   Nittler L. R.   Travaglio C.   Gallino R.   Woosley S.   
Lewis R. S.
Presolar Dust Grains from Murchison and Mixing of Supernova Ejecta

Verchovsky A. B.*   Fisenko A. V.   Semjonova L. F.   Wright I. P.   
Pillinger C. T.
Successful Grain Size Separation of Presolar Diamonds from Eframovka Using 
Ultracentrifugation:  Nitrogen, Carbon and Noble Gas Isotopic Data

Yoshida T.*   Emori H.   Nakazawa K.
Abundance Ratios of Light Elements Synthesized in the He-layer and the H-
rich Envelope of a
Type II Supernova

Meyer B. S.*
Isotopic Effects from Supernova Neutron Bursts

Nittler L. R.*   Alexander C. M. O'D.
Can Diffusing AGB Stars Explain the Metallicity Distributions of Presolar 
Grain Progenitor Stars?

Thursday, March 19, 1998
EUROPA:  PARADISE FOUND?
8:30 a.m.     Room C

Chairs:	L. M. Prockter
	P. E. Geissler

Senske D. A.*   Greeley R.   Head J.   Pappalardo R.   Sullivan R.   Carr M.   
Geissler P.   Moore J.   Galileo SSI Team
Geologic Mapping of Europa:  Unit Identification and Stratigraphy at 
Global and Local Scales

Denk T.*   Neukum G.   Belton M. J. S.   Breneman H. H.   Geissler P. E.   
Greeley R.   Hansen G. B.   Helfenstein P.   Hibbitts C. A.   Jaumann R.   
Johnson T. V.   Martin P. D.   McCord T. B.   McEwen A. S.   Sullivan R. J.   
Galileo SSI Team
Europa's Colors, Observed by Galileo-SSI:  Yellow Mottled Terrain on the 
Leading Side, Brown Mottled Terrain on the Trailing Side

Geissler P. E.*   Greenberg R.   Hoppa G.   McEwen A.   Tufts R.   Phillips C.   
Clark B.   Ockert-Bell M.   Helfenstein P.   Burns J.   Veverka J.   
Sullivan R.   Greeley R.   Pappalardo R. T.   Head J. W. III   Belton M. J. S.   
Denk T.   Galileo Imaging Team 
A Recently Active Lineament on Europa?

Tufts R.*   Greenberg R.   Geissler P.   Hoppa G.   Pappalardo R.   
Galileo Imaging Team
Europan Lithospheric Displacement Features and Their Interpretation

Hoppa G. V.*   Greenberg R.   Geissler P. E.   Tufts B. R.   Phillips C. B.   
Durda D. D.
Comparison of Global Stress Models with Geographical Features on Europa

Pappalardo R. T.*   Sherman N. D.   Head J. W.   Collins G. C.   Greeley R.   
Klemaszewski J.   Sullivan R.   Phillips C. B.   McEwen A. S.   Geissler P. E.   
Galileo Imaging Team
Distribution of Mottled Terrain on Europa:  A Possible Link to 
Nonsynchronous Rotation Stresses

Rathbun J. A.*   Musser G. S. Jr.   Squyres S. W.
Thermal-Mechanical Properties of Possible Ice Diapirs on Europa

Wilson L.*   Head J. W. III
Europa Cryovolcanism:  Ascent and Eruption of Magma and Its Role in 
Resurfacing

Head J. W. III*   Sherman N. D.   Pappalardo R. T.   Thomas C.   Greeley R.   
Galileo SSI Team 
Cryovolcanism on Europa:  Evidence for the Emplacement of Flows and 
Related Deposits in the E4 Region (5N, 305W) and Interpreted Eruption 
Conditions

Kadel S. D.*   Fagents S. A.   Greeley R.   Galileo SSI Team 
Trough-bounding Ridge Pairs on Europa — Considerations for an Endogenic 
Model of Formation

Prockter L. M.*   Pappalardo R. T.   Collins G. C.   Head J. W.   Greeley R.   
Carr M. H.   Belton M. J. S.   Senske D. A.   Galileo Imaging Team 
Galileo Very High Resolution Imaging of Conamara Chaos, Europa

Fanale F. P.*   Li Y. H.   Decarlo E.   Domergue-Schmidt N.   Sharma S. K.   
Horton K.   Granahan J. C.   Galileo NIMS Team 
Laboratory Simulations of the Chemical Evolution of Europa's Aqueous Phase

Kargel J. S.*
Composition of Europa's Crust and Ocean

Thursday, March 19, 1998
ASTEROID GUMBO
8:30 a.m.     Room D

Chairs:	P. G. Lucey
	K. A. Farry

Davis D. R.*   Farinella P.
Collisional Erosion of a Massive Edgeworth-Kuiper Belt:  Constraints on 
the Initial Population

Clark B. E.*   Veverka J.   Helfenstein P.   Thomas P.   Bell J. F. III   
Joseph J.   Harch A.   Carcich B.   Robinson M. S.   Murchie S.   Cheng A.   
Izenberg N.   McFadden L.   Chapman C.   Merline W.   Malin M.
NEAR Photometry of C-type Asteroid 253 Mathilde

Merline W. J.*   Chapman C. R.   Robinson M.   Veverka J.   Harch A.   
Bell J. III   Thomas P.   Joseph J.   Carcich B.   Murchie S.   Cheng A.   
Izenberg N.   McFadden L.   Malin M.   Clark B. E.
NEAR's Encounter with 253 Mathilde:  Search for Satellites

Cheng A. F.*   Barnouin-Jha O. S.
Large Craters on Mathilde

Lucey P. G.   Hinrichs J. L.*   Robinson M. S.
Dependence of Spectral Properties of Olivine and Pyroxene on Temperature:  
Implications for NEAR Observations of Eros

Meibom A.*   Clark B. E.
The Insignificance of Ordinary Chondritic Material in the Asteroid Belt:  
Combining Meteoritic and Astronomic Evidence

Burbine T. H.*   Binzel R. P.   Bus S. J.
Is Vesta the Parent Body of the "Vesta Chips"? Yes

Bell J. F.*
The Vesta Asteroid Family:  Fact or Fiction?

Takeda H.*   Arai T.   Yamaguchi A.   Miyamoto M.
Granoblastic Pyroxene in Ordinary Eucrites and Metamorphic History of a 
Vesta-like Body

Wasson J. T.*   Pieters C. M.   Fisenko A. V.   Semjonova L. F.   Warren P. H.
Simulation of Space Weathering of Eucrites by Laser Impulse Irradiation

Binzel R. P.*   Bus S. J.   Burbine T. H.
Size Dependence of Asteroid Spectral Properties:  SMASS Results for Near-
Earth and Main-Belt Asteroids

Durda D. D.*   Greenberg R.   Jedicke R.
A New Interpretation of the Size Distribution of Main-Belt Asteroids

Farry K. A.*   Graham J. S.   Vilas F.   Jarvis K. S.
Automating Asteroid Surface Composition Identification from Reflectance 
Spectra

Thursday, March 19, 1998
ORIGINS OF PLANETARY SYSTEMS
Session dedicated to the memory of Jurgen Rahe
1:30 p.m.     Room A

Chairs:	J. M. Hahn
	K. Marti

Boss A. P.*
Giant Planet Formation and Wobbling Protostars

Ruzmaikina T. V.*
Formation of 51Peg-type Systems

Stewart G. R.*   Levison H. F.
On the Formation of Uranus and Neptune

Hahn J. M.*   Malhotra R.
Orbital Evolution of Planets Embedded in a Massive Debris Disk

Malhotra R.*
Pluto's Inclination Excitation by Resonance Sweeping

Vanhala H. A. T.*   Boss A. P.
Injection of Radioactivities into the Protosolar Cloud

Clayton D. D.*
Condensing Carbon SUNOCONs When O>C

Wasserburg G. J.*   Gallino R.   Busso M.
A Test of the Supernova Trigger Hypothesis with 60Fe and 26Al

Wetherill G. W.*   Stewart G. R.
Formation of Planetary Embryos by Continuous Injection of Small Bodies

Kortenkamp S. J.*   Wetherill G. W.
Terrestrial Planet and Asteroid Formation in the Presence of Giant Planets

Gaffey M. J.*
Using Nickel Features in the Spectra of Olivine-dominated A- and S(I)-type 
Asteroids to Determine the Oxidation State of the Solar Nebula

Marti K.*   Mathew K. J.
Relations Among Solar System Xenon Reservoirs and the Chassigny Connection

Nuth J. A.*
Consequences of Mass-independent, Chemical, Oxygen-Isotopic Fractionation 
in the Solar Nebula

Thursday, March 19, 1998
MARTIAN METEORITES
1:30 p.m.     Room B

Chairs:	R. C. Friedman
	L. E. Borg

Greshake A.*   Stephan T.   Rost D.
Symplectic Exsolutions in Olivine from the Martian Meteorite Chassigny:  
Evidence for Slow Cooling Under Highly Oxidizing Conditions

Mikouchi T.*   Miyamoto M.
Pyroxene and Olivine Microstructures in Nakhlite Martian Meteorites:  
Implication for
Their Thermal History

Kaneda K.*   McKay G.   Le L.
Synthetic and Natural Nakhla Pyroxenes:  A Close Match at Last

Friedman R. C.*   Taylor G. J.   Treiman A. H.
Nakhlites and Theo's Flow:  Formation of Extrusive Pyroxenites

Greenwood J. P.*   Riciputi L. R.   McSween H. Y. Jr.
Sulfur Isotopic Ratios in Nakhla and Chassigny Sulfides Determined by Ion 
Microprobe:  Implications for the Martian Sulfur Cycle

Wright I. P.*   Grady M. M.   Gardner A. F.   Pillinger C. T.
The Carbon Isotopic Composition of PAHs, Hydrocarbons and Other Organic 
Compounds in Nakhla

Bridges J. C.*   Grady M. M.
Melted Sediment from Mars in Nakhla

Shih C.-Y.*   Nyquist L. E.   Reese Y.   Wiesmann H.
The Chronology of the Nakhlite, Lafayette:  Rb-Sr and Sm-Nd Isotopic Ages

Borg L. E.*   Nyquist L. E.   Wiesmann H.
Rb-Sr Isotopic Systematics of the Lherzolitic Shergottite LEW88516

Gilmour J. D.*   Burgess R.   Whitby J. A.   Turner G.
Soluble Phases in Nakhla, Their Ar-Ar Ages and Noble Gas Contents

Marty B.*   Zimmermann L.   Pik R.
Nitrogen and Argon Isotopes in Individual Mineral Grains of SNC Meteorites 
:  A CO2-Laser
Step-Heating Analysis

Bogard D. D.*   Garrison D. H.
Composition of Martian Noble Gases Trapped in Martian Meteorite Impact 
Glasses

Delaney J. S.*   Sutton S. R.   Dyar M. D.
Variable Oxidation States of Iron in Martian Meteorites

Thursday, March 19, 1998
THE FOUR GALILEANS:  IO, EUROPA, GANYMEDE, AND CALLISTO
1:30 p.m.     Room C

Chairs:	J. M. Moore
	A. G. Davies

Keszthelyi L.*   McEwen A.   Klaasen K.   Galileo SSI Team
High-Temperature Volcanism on Io:  Galileo SSI Eclipse Observations

Davies A. G.*   Lopes-Gautier R. M. C.   Smythe W. D.   Carlson R. W.
Multiple-Temperature Fits to NIMS Observations of Volcanism on Io

Howell R. R.*   Spencer J. R.   Stansberry J. A.
IR Occultation Observations of Volcanic Hot Spots on Io

Goguen J. D.*   Nicholson P. D.   Hayward T. L.   Van Cleve J. E.   
Veeder G. J.   Blaney D. L.   Matson D. L.   Johnson T. V.
A Comparison of Two Eruptions on Io Using Mid-IR Measurements of Satellite 
Occultations in 1997

Stansberry J. A.*   Spencer J. R.   Howell R. R.   Hudson T. L.
The 1997 Loki Eruption:  Groundbased Observations

Granahan J. C.*   Fanale F. P.   Carlson R.   Kamp L.   Matson D.   Ocampo A.   
Smythe W.   Greeley R.   Geissler P.   Moore J.   Belton M.   
Galileo NIMS Team   Galileo SSI Team
Galileo Remote Sensing Compositional Studies of the Tyre Region of Europa

Ghail R. C.*
Ice Crust Thickness and Internal Composition of Europa

Asphaug E.*   Moore J. M.   Morrison D.   Figueredo P. H.   Greeley R.   
Pappalardo R. T.   Prockter L. M.   Tufts R.   Galileo SSI Team 
Crater-controlled Fracture Networks and the Depth of Ice Lithospheres

Figueredo P. H.*   Greeley R.   Moore J. M.   Asphaug E.   Galileo SSI Team 
Crater-influenced Fracture Pattern of Nicholson Regio:  Implications for 
the Cratering Record of Ganymede

Moore J. M.*   Spencer J. R.   Asphaug E.   Morrison D.   Klemaszewski J. E.   
Sullivan R. J.   Chuang F. C.   Greeley R.   Bender K. C.   Geissler P. E.   
Chapman C. R.   Pilcher C. B.   Galileo SSI Team 
Mass Movement and Landform Degradation on Callisto and Ganymede as 
Observed During the Galileo Nominal Mission:  The Role of Sublimation

Schenk P.*
Large Crater Morphologies & Populations on Ganymede, Callisto, and Europa:  
New Voyager &
Galileo Results

Wagner R.*   Wolf U.   Neukum G.   Klemaszewski J. E.   Greeley R.   
Galileo Imaging Team 
Time-Stratigraphy and Crater Retention Ages of Geologic Units on Callisto

Zahnle K.*   Levison H.   Dones L.
Cratering Rates on the Galilean Satellites

Thursday, March 19, 1998
FUTURE EXPLORATION AND INSTRUMENTS
1:30 p.m.     Room D

Chairs:	J. R. Marshall
	A. F. Chicarro

Saunders R. S.*   Briggs G.   Carr M.   Crown D.   Duke M.   McKay C.   
McGill G.   Paige D.   Squyres S.   Zimbleman J.
Mars Landing Site Selection for Sample Return

Squyres S. W.*   Arvidson R.   Bell J. F.   Carr M.   Christensen P.   
Des Marais D.   Economou T.   Gorevan S.   Klingelhöfer G.   Haskin L.   
Herkenhoff K.   Knoll A.   Knudsen J. M.   Malin M.   McSween H.   Morris R.   
Rieder R.   Sims M.   Soderblom L.   Wänke H.   Wdowiak T.
The Athena Mars Rover Science Payload

Marshall J. R.*   Bratton C.   Koppel L.   Hecht M.   Metzger E.
Strategies and Technologies for In Situ Mineralogical Investigations on 
Mars

Arvidson R. E.*   Acton C.   Blaney D.   Bowman J.   Kim S.   Klingelhoefer G.   
Marshall J.   Niebur C. S.   Plescia J.   Saunders R. S.   Ulmer C. T.
Lessons Learned from Rocky 7 Rover Deployment and One Kilometer Traverse 
over Basalt Flows, Playa, and Alluvial Fan Surface, Mojave Desert, CA

Crumpler L. S.
Southwestern Isidis Planitia, Mars:  A Mars Surveyor Landing Site at the 
Geologic Contact Between
Three Units

Banerdt W. B.   Smrekar S.   Ayon J.   Pike W. T.   Sprague G.
A Low-Cost Geophysical Network Mission for Mars

Chicarro A. F.*
Mars Express, An European Scientific Mission in 2003

Foing B. H.*   Euromoon Team 
The Euromoon Mission:  Science Exploration Goals and Model Payload

Eckart P.   Pauly K.*   Hyvonen P.   Riemann R.   Wahlund J. -E.
LunarSat:  A Microorbiter Mission to the Moon

Brinckerhoff W. B.*   Cheng A. F.   McEntire R. W.   Managadze G. G.
Miniature Laser Ablation Time of Flight Mass Spectrometer

Thursday, March 19, 1998
POSTER SESSION II
7:30 p.m.     Space Center Houston



LIFE ON MARS AND EARTH

Allen C. C.   Graham C. R.   Combie J.   Albert F. G.   Steele A.   
McKay D. S.
Biological Signatures in Carbonates:  Yellowstone National Park

Allen C. C.   McKay D. S.
Biomarkers in Thermal Spring Carbonates:  Implications for Mars

Allen C. C.   Taunton A. E.   Taylor M. R.   McKay D. S.
Microbes in Carbonate Thermal Springs:  Hot Springs National Park

Westall F.   de Wit M. J.   Dann J.   de Ronde C. E. J.   Gerneke D.
Hydrothermal Sediments and Fossil Bacteria from the Early Archaean of 
South Africa as Analogues for Early Life on Mars

Grin E.  A.   Cabrol N.  A.
Deep Basalt Aquifers in Orcus Patera, Elysium Basin Mars:  Perspectives 
for Exobiology

Flynn G. J.
Ni in the Soil of Mars:  A Chronometer to Measure the Global Soil 
Production Rate and Implications
for Exobiology

Hagerty J. J.   Newsom H. E.
Potential Toxicity of the Martian Soil

Schuerger A. C.
Application of Basic Concepts in Plant Pathogenesis Suggests Minimal Risk 
for Return of Extraterrestrial Samples from Mars

Stansbery E. K.   Allton J. H.
Verifying Biological Containment for Mars Sample Return Spacecraft:  A New 
Perspective


MARTIAN SPECTRAL CHARACTERISTICS AND TERRESTRIAL ANALOGS

Wang A.   Jolliff B. L.   Haskin L. A.
Raman Spectroscopic Characterization of a Highly Weathered Basalt – 
Igneous Mineralogy, Alteration Products, and a Bug

Rajmon D.
Multispectral Microscopic Imaging for Planetary Exploration

Lindstrom I. K.   Lindstrom M. M.
The Effect of "Martian" Dust on the Reflectance Spectra of Igneous and 
Sedimentary Rocks

Erard S.
A Spectrophotometric Model of Mars in the Near-Infrared

Herr K. C.   Forney P. B.   Pimentel G. C.
Mariner Mars 6/7 Infrared Spectrometers:  Lab Simulation of Mars Spectra

Allen C. C.   Morris R. V.   Jager K. M.   Golden D. C.   Lindstrom D. J.   
Lindstrom M. M.   Lockwood J. P.
Martian Regolith Simulant JSC Mars-1

Golden D. C.   Morris R. V.   Ming D. W.
Mineralogy of the Clay Size Fraction (<2 µm) of Palagonitic Tephra from 
the Upper Slopes of Mauna Kea Volcano, Hawaii:  Implications for the 
Mineralogy of Aeolian Dust on Mars

Mancinelli R. L.   White M. R.   Bishop J. L.   Banin A.
Mineralogical Analysis of Ammonium in Clays:  The Fate of N on Mars

Ming D. W.   Golden D. C.   Liu C. C.   Dawson A. D.   Hedgecock J. C.
PHEEMS:  A Mars Soil Reactivity Experiment

Presley M. A.
The Use of Multiple Hypotheses to Determine Characteristics of Martian 
Surficial Units:  Example,
Oxia Palus Quadrangle

Vaniman D.   Bish D.   Blake D.   Collins S. A.   Chipera S.   Sarrazin P.   
Elliott S. T.
Use of the Prototype CHEMIN XRD/XRF Instrument in Analyzing Complex 
Mixtures of Potential Martian Sulfate Minerals

Freund F.   Butow S. J.   Dickinson J. T.
"Dry" Rocks and the Generation of Short-lived H2O Pulses During Shock

Slade M. A.   Butler B. J.   Harmon J. K.   Jurgens R. F.   Haldemann A. F. C.
Radar Full-Disk Imaging and Topography of Mars During the 1999 Opposition



MARTIAN METEORITES

Hale V. P. S.   McSween H. Y.   McKay G.
Cumulus Pyroxene in Shergotty:  Why Do Estimates Vary Between Experimental 
and Observational Studies?

Puga E.   Jagoutz E.   Nieto J. M.   Diaz de Federico A.   Ruiz-Cruz M. D.
On the Origin of the Brown Color in ALHA 77005 Olivine

Rao M. N.   Wentworth S. J.   Yang S. R.   McKay D. S.
Records of Molten Martian Soil in EET 79001 Meteorite

Boctor N. Z.   Fei Y.   Bertka C. M.   Alexander C. O. A.   Hauri E.
Vitrification and High Pressure Phase Transition in Olivine Megacrysts 
from Lithology A in Martian Meteorite EETA79001

Minitti M. E.   Rutherford M. J.
Assessment of Shock Effects on Hornblende Water Contents and Isotopic 
Compositions

El Goresy A.   Sharp T. G.   Wopenka B.   Chen M.
A New Very-High-Pressure Silica Mineral in the Shergotty SNC Meteorite:  
Implications for Shock Metamorphism and the Earth's Lower Mantle

Nyquist L. E.   Bogard D. D.   Garrison D. H.   Reese Y.
A Single-Crater Origin for Martian Shergottites:  Resolution of the Age 
Paradox?

Wang A.   Jolliff B. L.   Haskin L. A.
Raman Spectroscopic Characterization of Martian Meteorite Zagami

Brandenburg J. E.   Hunter A.
The CI as the Missing Old Meteorites of Mars:  New Data



ALH 84001

Cooney T. F.   Scott E. R. D.   Krot A. N.   Sharma S. K.   Yamaguchi A.
Confocal Raman Microprobe and IR Reflectance Study of Minerals in the 
Martian Meteorite ALH84001

Treiman A. H.   Treado P.
Martian Maskelynite? Raman Spectra of Plagioclase – Composition Glasses 
from ALH 84001, EETA79001, and ALHA77005

Greenwood J. P.   McSween H. Y. Jr.
Origin of Stoichiometric Feldspathic Glasses in ALH84001 by Mixing of 
Plagioclase and Orthoclase During Multiple Shock Events

Shearer C. K.   Adcock C. T.
The Relationship Between the Carbonate and Shock-produced Glass in ALH 
84001

Sears D. W. G.   Kral T. A.
SEM Imaging of Martian and Lunar Meteorites and Implications for 
Microfossils in Martian Meteorites

Westall F.   Gobbi P.   Gerneke D.   Mazzotti G.
Microstructures in the Carbonate Globules of Martian Meteorite ALH84001:  
Preliminary Results of a High Resolution SEM Study

Morris P. A.   Allen C. C.   Gibson E. K.   McKay D. S.   Thomas-Keprta K.
Reexamination of the Warrawoona Group Fossils (Towers Formation, Western 
Australia, 3.3 to 3.5 Ga):  Analogs of Mars Meteorite Fossils?

Flynn G. J.   Keller L. P.   Miller M. A.   Jacobsen C.   Wirick S.
Organic Compounds Associated with Carbonate Globules and Rims in the ALH 
84001 Meteorite

Treiman A. H.
The History of ALH 84001 Revised:  Multiple Shock Events

Mathew K. J.   Marti K.
Nitrogen and Noble Gas Isotopic Signatures in Bulk ALH84001 with 
Carbonates

Barlow N. G.
Status Report on the Search for Source Craters of ALH84001


THE FOUR GALILEANS

Leone G.   Wilson L.
Ascent & Emplacement of Magmas on Io:  Some Considerations on Compositions 
and Solubilities of Volatiles and Their Roles in Volcanic Activity

James M. R.   Wilson L.
An Optical Model for Ballistic Plumes on Io

Head J. W.   Pappalardo R. T.   Greeley R.   Sullivan R.   
Galileo Imaging Team 
Origin of Ridges and Bands on Europa:  Morphologic Characteristics and 
Evidence for Linear Diapirism from Galileo Data

Head J. W.   Sherman N. D.   Pappalardo R. T.   Greeley R.   Sullivan R.   
Senske D.   McEwen A.   Galileo Imaging Team 
Geologic History of the E4 Region of Europa:  Implications for Ridge 
Formation, Cryovolcanism, and
Chaos Formation

Spaun N. A.   Head J. W.   Pappalardo R. T.   Galileo Imaging Team 
Geologic History, Surface Morphology and Deformation Sequence in an Area 
near
Conamara Chaos, Europa

Phillips C. B.   McEwen A. S.   Hoppa G. V.   Geissler P. E.   Pappalardo R.   
Greeley R.   Klemaszewski J.   Simonelli D. P.   Sullivan R.   
Galileo SSI Team
Change Detection on Europa and Io from Voyager and Galileo Images

Turtle E. P.   Phillips C. B.   McEwen A. S.   Moore J. M.   Greeley R.   
Galileo SSI Team
Numerical Modeling of Multi-Ring Impact Craters on Europa:  Implications 
for Subsurface Structure

Kuramoto K.   Saiganji Y.   Yamamoto T.
Oscillating Magnetic Dipole Moment of Europa Induced by Jovian Magnetic 
Field:  A Possible Probe for Detecting Europa's Ocean

Fagents S. A.   Kadel S. D.   Greeley R.   Kirk R. L.   Galileo SSI Team
Styles of Cryovolcanism on Europa:  Summary of Evidence from the Galileo 
Nominal Mission

Head J. W.   Pappalardo R. T.   Kay J.   Collins G.   Prockter L.   Greeley R.   
Chapman C.   Carr M.   Belton M. J. S.   Galileo Imaging Team 
Cryovolcanism on Ganymede:  Evidence in Bright Terrain from Galileo Solid 
State Imaging Data

Denk T.   Neukum G.   McCord T. B.   Hansen G. B.   Hibbitts C. A.   
Martin P. D.   Galileo SSI Team
Candidate Surface Materials of the Icy Galilean Satellites That Might be 
Distinguished by the
Galileo SSI Camera

Spencer J. R.   Prockter L.   Pappalardo R.   Head J.   Moore J.
Local Volatile Migration on Ganymede:  Galileo SSI Images, PPR Radiometry, 
and
Theoretical Considerations

Patel J. G.   Pappalardo R. T.   Head J. W.   Collins G. C.   
Galileo Imaging Team
Wavelengths of Ganymede Grooved Terrain Determined from Fourier Analysis 
of Galileo Images

Hiesinger H.   Patel J. G.   Head J. W.   Giese B.   Pappalardo R. T.   
Galileo Imaging Team 
Uruk Sulcus Region of Ganymede:  Techniques to Investigate Orientation and 
Spacing of Grooves

Prockter L. M.   Pappalardo R. T.   Head J. W. III   Asphaug E.   
Collins G. C.   Galileo SSI Team 
Genesis of Anshar Sulcus:  Evidence for Shear and Extension in Marius 
Regio

Thomas C.   Head J. W.   Galileo SSI Team 
Morphology of Byblus Sulcus, Ganymede from Galileo SSI Data

Hiesinger H.   Head J. W. III   Galileo Imaging Team 
Geologic Map of the Nippur Sulcus Region of Ganymede

Prockter L. M.   Senske D.   Head J. W. III   Pappalardo R. T.   Collins G. C.   
Greeley R.   Galileo SSI Team 
Furrow Systems on Ganymede:  Morphology, Evolution and Distribution

Deschamps F.   Sotin C.
Thermal Convection in the Outer Ice I Shell of Ganymede and Callisto

Schenk P.
Geology of Gilgamesh, Ganymede:  New Insights from Stereo and Topographic 
Mapping

Heiner S. E.   McHone J. F.   Klemaszewski J. E.   Greeley R.   Bender K. C.   
Homan K. S.   McCord T. B.   Hibbitts C. A.   Hansen G. B.   
Galileo SSI and NIMS Teams
Lofn Crater, Callisto:  A Large Flat-floored Impact Crater Observed by 
Galileo

Homan K. S.   Bender K. C.   Williams K. K.   Klemaszweski J. K.   Greeley R.   
Galileo SSI Team 
Galileo Views of Three Major Multi-Ring Features on Callisto

Chuang F. C.   Greeley R.   Klemaszewski J. E.   Moore J. M.   
Galileo SSI Team 
Intracrater Landslides on Callisto:  Observations from the Galileo Nominal 
Mission

Ivanov B. A.   Neukum G.   DeNiem D.
Cometary Impact Rates on Jovian Satellites:  Questions

Rosanova T.   Becker T.   Gaddis L.   McMacken D.   Christiansen W.   Blue J.   
McEwen A. S.   Woncik P.   Lavoie S.   Galileo Team 
The Galileo Navigator:  A Tool for Cartographers and Scientists

Becker T. L.   Rosanova T.   Gaddis L.   McEwen A. S.   Phillips C. B.   
Davies M. E.   Colvin T. R.
Cartographic Processing of the Galileo SSI Data:  An Update on the 
Production of Global Mosaics of the Galilean Satellites

Milazzo M.   McEwen A.   Phillips C. B.   Dieter N.   Plassman J.
High-resolution Mosaics of the Galilean Satellites from Galileo SSI


VENUS VOLCANISM, TECTONISM, AND MAPPING

Stofan E. R.   Smrekar S. E.
Coronae at Large Topographic Rises on Venus:  Implications for Plume 
Evolution and Delamination

Tapper S. W.   Stofan E. R.   Guest J. E.
Preliminary Analysis of an Expanded Corona Database

Mastrapa R. M. E.   Melosh H. J.
Models of Formation for Asymmetric Coronae on Venus

Chapman M. G.   Zimbelman J. R.
Two Age Groups of Coronae on Venus?

Solomatov V. S.   Bakalian F.   Moresi L.-N.
Numerical Simulations of the Transition from Plate Tectonics to Stagnant 
Lid Convection:  Application to Global Resurfacing on Venus

Rosenblatt P.   Barriot J. P.   Pinet P. C.
Regional Analysis of Topography, Gravimetry and Geology at Two Venusian 
Hot Spots:  Western Eistla and Bell Regiones, and Their Peripheries

Ivanov M. A.   Head J. W.
Global Stratigraphic Units on Venus:  Results of a Geotraverse Around the 
Venus Globe at 30N Latitude

DeShon H. R.   Hansen V. L.
Preliminary Geologic History of the Diana-Dali Quadrangle (V37), Venus

Ivanov M. A.   Head J. W.
Stratigraphy and Evolution of Quetzalpetlatl Corona, Venus:  Preliminary 
Results from the Mapping of
V-61 Quadrangle

Aittola M.   Raitala J.
Stratigraphy and Development of the Hecate Chasma Deformation Area on 
Venus

Dohm J. M.   Tanaka K. L.
Geologic Mapping of the Metis Regio (V6) Quadrangle of Venus at 
1:5,000,000 Scale

Marinangeli L.
Geological Analysis of Western Ishtar Terra Margins, Venus

Senske D. A.
Geology of the Tellus and Phoebe Regions of Venus:  Unit Identification 
and Examination of the Relationship Between Plains and Tessera

Ivers C. B.   McGill G. E.
Kinematics of a Tessera Block in the Vellamo Planitia Quadrangle, Venus

King R. L.   Cruz J.   Grosfils E. B.   Gilmore M. S.   Reinen L. A.   
Kozak S. J.
Structural Deformation of Northern Ovda Regio, Venus:  Implications for 
Venusian Tectonics

Ghent R. R.   Hansen V. L.
Geometrical Analysis of Shear-Fracture Ribbons in Ovda Regio, Venus

Banks B. K.   Hansen V. L.
Chocolate Tablet Boudinage on Venus

Gilmore M.  S.   Collins G.  C.   Head J.  W.   Ivanov M.  I.   Marinangeli L.
Tessera Tectonics

Raitala J.
Venusian Ridge Belts:  Implications for Fault Friction, Mechanics and 
State of Stress

Nagasawa C.   Sasaki S.   Koyama M.
Change of Stress Field Around Beta-Atla-Themis Region and Aphrodite Terra, 
Venus

Tracadas P. W.   Zuber M. T.
What a Global Stress Map of Venus Reveals

Ristau S.   Sammons J. III   Grosfils E.   Reinen L.   Gilmore M.   Kozak S.
Distribution of Intermediate Volcanoes on Venus as a Function of Altitude

Pike W. A.   Frey H. M.   Krull A. E.   Grosfils E. B.   Gilmore M. S.   
Reinen L. A.   Kozak S. J.
Viscosity of Venusian Lava Flows:  Constraints from Fractal Dimension and 
Chemical Composition

Ernst R. E.   Buchan K. L.
Arcuate Dyke Swarms Associated with Mantle Plumes on Earth:  Implications 
for Venusian Coronae

Cook D. L.   Chambers N. W.   Grosfils E. B.   Reinen L. A.   Gilmore M. J.   
Kozak S. J.
Volume, Geometry, and Depth of Magma Chambers Associated with Large 
Volcanoes on Venus

Guest J. E.   Stofan E. R.   Copp D. L.
Observations of Large Shield Volcanoes on Venus

Campbell B. A.   Glaze L.   Rogers P. G.
Pyroclastic Deposits on Venus:  Remote-Sensing Evidence and Modes of 
Formation

Fletcher L.   Wright H.   Grosfils E.   Reinen L.   Gilmore M.   Kozak S.
A Possible Third Festoon Flow in Atalanta Planitia, Venus

Paillou Ph.   Masson Ph.   Ansan V.   Souriot Th.   Elizavetin I.
Extraction of Planetary Surfaces Physical Parameters Using Radar Remote 
Sensing

Williams K. K.   Greeley R.
Aerodynamic Roughness Estimates of Radar-Dark Wind Streaks on Venus

Ghail R. C.
If Earth's Continents Had Never Drifted


ORIGINS OF PLANETARY SYSTEMS

Vanhala H. A. T.   Boss A. P.   Cameron A. G. W.   Foster P. N.
Triggered Star Formation:  The FAQ

Stepinski T. F.
Diagnosing Properties of Protoplanetary Disks from Their Evolution

Trilling D. E.   Melosh H. J.
What If Extrasolar Planets are Rocky?

Cuzzi J. N.   Hogan R. C.   Dobrovolskis A. R.
Turbulent Concentration:  Fractal Description, Scaling Laws, and 
Generalized Applications to
Planetesimal Accretion

Matthews L. S.   Hyde T. W.
Dusty Plasma Coagulation

Swint G. S.   Matthews L. S.   Hyde T. W.
Chondrule Melting Via Transient Heating Events

Haghighipour N.
An Analytical Approach to Resonance Trapping Between Saturn and Jupiter

KenKnight C. E.
Opacity-Controlled Convection:  Evidences

Manuel O.
Origin of the Solar System and its Chemical Elements



SATURN SATELLITES

Wood C. A.   Caress M. E.   Lorenz R.
How Do You Select Data Takes for a World You've Never Seen? Planning 
Cassini Radar Studies of Titan

Grasset O.   Sotin C.
On the Internal Structure and Dynamics of Titan

Jarvis K. S.   Vilas F.   Larson S. M.   Gaffey M. J.   Domingue D.
Hyperion, Phoebe, and Iapetus:  Relationships of the Saturnian Satellites


MERCURY

Clark P. E.   Starr R. D.
X-Ray Spectrometry for Typical Mercury Mission Scenarios

Cook A. C.   Robinson M. S.   Watters T. R.   Edwards K.
Digital Elevation Model of the Discovery Region on Mercury

Jurgens R. F.   Rojas F.   Slade M. A.   Haldemann A. F. C.
Mercury:  New Information on Topography and Orbital Elements

Robinson M. S.   Davies M. E.   Colvin T. R.   Edwards K. E.
Revised Positional Information for Mercurian Polar Craters


SMALL BODY JAMBALAYA

Boice D. C.
Modeling the Dusty Coma of Comet Hale-Bopp

Ishibashi Y.   Abe M.   Takagi Y.
Photometric Observation of (4660)Nereus; Target Object of Japanese Sample-
Return Mission, MUSES-C

Landis R. R.   Stern S. A.   Wood C. A.   Storrs A. D.
Observations of 1 Ceres with the HST Faint Object Camera

Rivkin A. S.   Davies J. K.   Ellison S. L.   Lebofsky L. A.
High-resolution 2.5–3.5 µm Observations of C-, B- and G-class Asteroids

Flynn G. J.   Klock W.
Densities and Porosities of Meteorites:  Implications for the Porosities 
of Asteroids

Stooke P. J.
Stratified Sedimentary Deposits on Asteroids

Isobe T.   Yamamoto H.   Homma K.   Shingu H.   Furukawa S.
Matching of Craters in Small Body Images for Shape Estimation

Onose N.   Fujiwara A.
Impact Cratering Experiments on Gypsum Models of Vesta

Palmer E. E.   Wood C. A.
Build Your Own Asteroid:  A Java Applet to Model Asteroid Formation

Teterev A. V.
An Improved Sand Bag Model for Numerical Simulation of a Fragmented Cosmic 
Body

Teterev A. V.
Entry Consequences of the Rarefied Water Formations into the Earth's 
Atmosphere


FUTURE EXPLORATION AND INSTRUMENTS

Cabrol N. A.   Chong-Diaz G.   Dohm J. M.   Pereira Arredondo M.   Dunfield G.   
Gulick V. C.   Jensen-Iglesia A.   Keaten R.   Herrera Lamelli C.   
Landheim R.   Lee P. C.   Pederson L.   Roush T.   Schwehr K.   Stoker C. R.   
Zent A.
Atacama I:  Science Results of the 1997 Nomad Rover Field Test in the 
Atacama Desert, Chile

Eby R. M.   Arvidson R. E.   Hofmeister A. M.
Mars Rover Rock Measurements in Dusty Environments:  Lessons from Coated 
Rocks in the Southwestern United States

Wiens R. C.   Cremers D. A.   Blacic J. D.   Ritzau S. M.   Funsten H. O.   
Nordholt J. E.
Elemental and Isotopic Planetary Surface Analysis at Stand-off Distances 
Using Laser-induced Breakdown Spectroscopy and Laser-induced Plasma Ion 
Mass Spectrometry

Lucey P. G.   Cooney T. F.   Sharma S. K.
A Remote Raman Analysis System for Planetary Landers

Zolensky M. E.   Pieters C.   Lipschutz M. E.   Clark B.
Mass Constraints for Samples Returned to Earth from Bodies Large and Small

Towner M. C.   Garry J. R. C.   Ball A. J.   Zarnecki J. C.
Penetration of Regolith Simulant Under Vacuum — Anomalies Old and New

Moss C. E.   Prettyman T. H.   Reedy R. C.   Valentine J. D.
High Efficiency CdZnTe Gamma-Ray Detectors for Planetary Missions

Okada T.   Kuwada Y.   Mizutani H.
Particle Size Effects in X-Ray Fluorescence:  Implications for Planetary 
Missions

Okada T.   Yamamoto Y.   Kuwada Y.   Shirai K.   Kato M.   Tsunemi H.   
Kitamoto S.   Fujimura A.   Mizutani H.
CCD-based X-Ray Spectrometers for MUSES-C and SELENE Missions

Guinness E. A.   Arvidson R. E.   Slavney S.   Stein T. C.   Cutts J.   
Bachelder A.   Cameron J.   Ivlev R.   Kahn R.
Prototyping a Mars Aerobot Mission on Solo Spirit

Friday, March 20, 1998
VENUS GEOLOGY AND RESURFACING
8:30 a.m.     Room A

Chairs:	S. E. Smrekar
	G. E. McGill

Kiefer W. S.*
What Supports Volcanos on Venus?

Smrekar S. E.*   Stofan E. R.
Gravity/Topography Admittances for Corona-dominated Rises on Venus:  
Evidence for Delamination

Turcotte D. L.   Roberts D. C.   Malamud B. D.*
Cratering Statistics on Venus

Hansen V. L.*   Ghent R. R.   Banks B. K.
Ribbon Terrain:  Fingerprint of Ancient Mantle Upwellings and Crustal 
Plateaus, Venus

Mestre E.*   Masson P.   Pinet P.
Evolution Stages of Ovda Regio from Structural History:  First Results

Campbell B. A.*   Greeley R.   Stofan E. R.   Gaskell R.   Shepard M. K.   
Klaasen K.
Imaging the Surface of Venus:  Feasibility of Drop-Probe Photography

McGill G. E.*
Venus:  Evolution of Central Eistla Regio

Basilevsky A. T.*   Head J. W.
Model of Global and Regional Stratigraphy of Venus:  Are the Units 
Globally Synchronous?

Ivanov M. A.*   Head J. W.
Major Issues in Venus Geology:  Insights from a Global Geotraverse at 30N 
Latitude

Marinangeli L.*   Ori G. G.
Venusian Resurfacing:  Geological Implications for Crustal Deformation

Bullock M. A.*   Grinspoon D. H.
Geological Forcing of Surface Temperatures on Venus

Hashimoto G. L.*   Abe Y.
Venus' Surface Temperature Controlled by a Chemical-Albedo Feedback

Solomon S. C.*   Bullock M. A.   Grinspoon D. H.
Climate Change as a Regulator of Global Tectonics on Venus

Friday, March 20, 1998
ALH 84001:  DOES IT BUG YOU?
8:30 a.m.     Room B

Chairs:	R. P. Harvey
	I. P. Wright

McKay G.*   Mikouchi T.   Schwandt C.   Lofgren G.
Fracture Fillings in ALH84001 Feldspathic Glass:  Carbonate and Silica

Scott E. R. D.*   Krot A. N.
Carbonates in Martian Meteorite ALH84001:  Petrologic Evidence for an 
Impact Origin

Brearley A. J.*
Magnetite in ALH 84001:  Product of the Decomposition of Ferroan Carbonate

Blake D. F.*   Treiman A. H.   Cady S.   Nelson C.   Krishnan K.
Characterization of Magnetite Within Carbonate in ALH84001

Thomas-Keprta K. L.*   Bazylinski D. A.   Golden D. C.   Wentworth S. J.   
Gibson E. K. Jr.   McKay D. S.
Magnetite from ALH84001 Carbonate Globules:  Evidence of Biogenic 
Signatures?

Foley C. N.   Humayun M.*   Davis A. M.   Kagan O.
Chemical and SEM Studies of Mineral Assemblages Within ALH84001

Jones J. H.*   Schwandt C. S.
Experimental Investigations of the High-Temperature Stability of Siderite:  
Implications for the Origin of ALH 84001 Carbonates

Treiman A. H.*   Ionov D. A.   Amundsen H. E. F.   Bunch T.   Blake D. F.
A Terrestrial Analog for Carbonates in ALH 84001:  Ankerite-Magnesite 
Carbonates in Mantle Xenoliths and Basalts from Spitsbergen (Svalbard), 
Norway

Boctor N. Z.*   Wang J.   Alexander C. O. A.   Hauri E.   Bertka C. M.   
Fei Y.   Humayun M.
Petrology and Hydrogen and Sulfur Isotope Studies of Mineral Phases in 
Martian Meteorite ALH84001

Farquhar J.*   Thiemens M. H.   Jackson T.
D17O Measurements of Carbonate from ALHA 84001:  Implications for Oxygen 
Cycling Between the Atmosphere-Hydrosphere and Pedosphere of Mars

Becker L.*   Popp B.   Rust T.   Bada J. L.
The Origin of Organic Matter in the Martian Meteorite ALH84001

Clemett S. J.*   Dulay M. T.   Gillette S.   Chillier X. D. F.   Mahajan T. B.   
Zare R. N.
Are the Polycyclic Aromatic Hydrocarbons in ALH84001 of Extraterrestrial 
Origin?:  A Reevaluation

Stephan T.*   Rost D.   Jessberger E. K.   Greshake A.
Polycyclic Aromatic Hydrocarbons in ALH84001 Analyzed with Time-of-Flight
Secondary Ion Mass Spectrometry

Jull A. J. T.*   Beck J. W.   Courtney C.   Jeffrey D. A.
Carbon Isotopic Evidence for Terrestrial Organic Compounds Found in Some 
Martian Meteorites

Friday, March 20, 1998
IMPACT:  CHICXULUB AND OTHER LARGE CRATERS
8:30 a.m.     Room C

Chairs:	D. A. Kring
	T. J. Ahrens

O'Keefe J. D.*   Ahrens T. J.
Calculations of Complex Crater Formation Extended to Thermo-Elastic Regime

Turtle E. P.*   Melosh H. J.
Numerical Modeling of the Role of Plastic Behavior in the Collapse of 
Large Impact Craters

Ni S.*   Ahrens T. J.
Free-Surface Motions Induced by Giant Impacts on Planets and Atmospheric 
Escape

Love S. G.   Ahrens T. J.*
Measured Shock Temperatures in Calcite and Their Relation to Impact-
Melting and Devolatilization

Mack C. A.*   Ahrens T. J.
Ejecta Dynamics of the K/T Impact

Pierazzo E.*   Crawford D. A.
Modeling Chicxulub as an Oblique Impact Event:  Results of Hydrocode 
Simulations

Schuraytz B. C.*   Lindstrom D. J.   Marin L. E.   Martinez R. R.   
Sharpton V. L.   Wentworth S. J.
Refractory Metal Grains in Chicxulub Impact Melt:  Not Just Iridium 
Anymore

Dissmann B.   Agrinier P.   Ostermann M.   Deutsch A.*
Chicxulub – Pemex Well Y-6:  Geochemistry (REE, eNd,eSr, d18O, d13C) of Impact 
Melt Breccias and Suevites

Warner M.*   Morgan J.   Chicxulub Working Group
The Chicxulub Seismic Experiment:  Size of Morphology of the Impact Crater

Hildebrand A. R.*   Pilkington M.   Halpenny J.   Cooper R.   Connors M.   
Ortiz-Aleman C.   Chavez R. E.   Urrutia-Fucugauchi J.   Graniel-Castro E.   
Camara-Zi A.   Buffler R. T.
Mapping Chicxulub Crater Structure with Overlapping Gravity and Seismic 
Surveys

Glass B. P.*   Koeberl C.
Spherules from Upper Eocene Sediments at ODP Hole 689B, Maud Rise, 
Antarctic

Detre Cs. H.*   Tóth I.   Gucsik A.   Kiss A.   Uzonyi I.   Bérczi Sz.
What Took Place at the Permo-Triassic Boundary? Cosmic Spherules as 
Messengers of a Nearby
Supernova Explosion

Hassler S. W.   Simonson B. M.*
Are Wave-formed Sedimentary Structures and Large Rip-Up Clasts in Early 
Precambrian Microkrystite Horizons Diagnostic of Oceanic Impacts?


TITLE-ONLY ABSTRACTS




Abdrakhimov A. M.   Basilevsky A. T.
Photogeologic Mapping of Venera 13 and 14 Landing Site Region:  Venus

Agrinier P.   Deutsch A.   Scharer U.   Martinez I.   Javoy M.
On the Kinetics of Reaction of CO2 with Hot CaO During Impact Events:  An 
Experimental Study

Albin E. F.   Norman M. D.   Roden M. F.
Crustal Components in North American Tektites:  Trace Element Compositions 
of Georgiaites by Laser Ablation ICPMS

Alexander C. M. O'D.   Goncharov A.   Nittler L.   Lu R.   Hemely R.
The Size Distribution and IR Spectra of Murchison SiC

Alexander C. M. O'D.   Yu Y.   Wang J.   Hewins R.
Experimental Determination of Distribution Coefficients as a Function of 
Cooling Rate Revisited

Amari S.   Matsuda J.
Ion Probe Analysis of Carbonaceous Grains in a Gas-rich Fraction from the 
Allende Meteorite

Andreichikov B. M.
Chemistry of Small Components of Upper Shells of Venus

Andreichikov B. M.   Dolnikov G. G.   Dikov Yu. P.
Graphic Presentation of Chemical Comet Model

Andreichikov B. M.   Dolnikov G. G.   Dikov Yu. P.
Qualitative Model of Comets Differentiation

Andreichikov B. M.   Dolnikov G. G.   Dikov Yu. P.
The Structure and the Chemical Composition of Halley Comet

Assonov S. S.   Biryukov A. Yu.   Nevzorov V. N.   Semenova A. S.   
Shukolyukov Yu. A.
Vesiculation in Silicate Grains of Luna-16 Soil

Assonov S. S.   Franchi I. A.   Pillinger C. T.   Semenova A. S.   
Shukolyukov Yu. A.   Verchovsky A. B.   Yassevitch A. N.
Isotopically Light Nitrogen in Young Immature Luna-24 Soils

Bada J. L.   Glavin D. P.   McDonald G. D.   Becker L.
Amino Acids in the ALH84001 Martian Meteorite

Badjukov D. D.   Raitala J.
The Impact Melt of the Janisjarvi Crater

Bahar E.   Haugland M.
Interpretation of Lunar and Planetary Surface Scattering Data Using the 
Unified Full Wave Approach

Basilevsky A. T.   Head J. W.
Sequence of Geologic Events in Formation of Coronae:  Venus

Becker R. H.
Effects of Grain-Surface Erosion on Solar Wind Isotopic Ratios and the SEP 
Mixing Ratio in
Extraterrestrial Samples

Bell M. S.   Hörz F.   Reid A.
Characterization of Experimental Shock Effects in Calcite and Dolomite by 
X-Ray Diffraction

Bérczi Sz.   Földi T.   Kubovics I.   Simonits A.   Szabé A.
Kaposfüred:  A New IVA-type Iron Meteorite from Hungary

Bottke W. F.  Jr.   Rubincam D. P.   Burns J. A.
Consequences of the Yarkovsky Effect on the Orbital Evolution of 
Meteoroids:  A Prospectus

Boyce J. M.   Roddy D. J.   Soderblom L. A.
Distribution of Onset Diameters of Rampart Ejecta Craters on Mars

Bradley J. P.   McSween H. Y.   Harvey R. P.
Mechanisms of Formation of Magnetite in Martian Meteorite ALH84001

Brearley A. J.
Microstructures of Feldspathic Glass in ALH 84001 and Evidence for Post 
Carbonate Formation
Shock Melting

Busarev V. V.
On the Spectral Similarities of 9 Metis and Some Lunar Mare Areas

Busemann H.   Baur H.   Wieler R.
The Primordial Noble Gas Component "Q" in the LL Chondrite Chainpur

Cabrol N.  A.   Grin E.  A.
Subsidence Areas and Groudwater Model Applied to Ma'adim Vallis Region, 
Mars

Cabrol N. A.   Chong Diaz G.   Dunfield G.   Dohm J.   Pereira Arredondo M.   
Gulick V. C.   Jensen Iglesia A.   Keaten R.   Herrera Lamelli C.   
Landheim R.   Lee P.   Pedersen L.   Roush T.   Schwher K.   Stoker C. R.   
Zent A.
Atacama II:  Nomad Rover Sample 1-250697 and Implications for Fossil 
Characterization During
Mars Exploration

Cabrol N. A.   Lee P. C.   Chong-Diaz G.   Pedersen L.   Dohm J. M.   
Pereira Arredondo M.   Dunfield G.   Gulick V. C.   Jensen Iglesia A.   
Keaten R.   Herrera Lamelli C.   Landheim R.   Roush T.   Schwher K.   
Stoker C. R.   Zent A.
Atacama III:  Meteorite Search During the Nomad Field Tests:  Perspectives 
on Automated Field Operations by Teleoperated Vehicles in Extreme 
Environments

Caress M. E.   Wood C. A.
Titan Tectonics — Discussion and Speculation

Chikami J.   Miyamoto M.   McKay G. A.
The Asuka 881551 Chondrite:  Meteorite Classification and Zinc Behavior

Collins G. C.   Head J. W.   Pappalardo R. T.   Galileo SSI Team
Geology of the Galileo G7 Nun Sulci Target Area, Ganymede

Collins G. C.   Head J. W.   Pappalardo R. T.   Galileo SSI Team
Two Scales of Deformation in Byblus Sulcus and Nippur Sulcus:  Additional 
Evidence for Necking in Ganymede Grooved Terrain

Colson R. O.   Nermoe M. K. B.   Hendrickson T. R.   Floden A. M.
Stabilization of Cr3+ Dimers in Silicate Melt by the Presence of Al

Dambaev V. A.   Ulyanov A. A.
Opaque Minerals in Enstatite Chondrites:  Perryite - Silicophosphide Ni 
and Fe in PCA 91085 and Conditions of Its Formation

Dell'Oro A.   Paolicchi P.   Dotto E.   Marzari F.   Vanzani V.
Probability of Mutual Collisions Among Trojans:  A Statistical Approach

Deutsch A.   Schärer U.   Agrinier P.
Evidence for Back-Reacted Carbonates in Distant Ejecta of the Chicxulub 
Impact Event?
An Experimental Approach

Dikov Yu. P.   Gerasimov M. V.   Wlotzka F.   Yakovlev O. I.   Distler V. V.
High-Temperature Evaporation of Picrite Enriched in Pd and Pt

Dikov Yu. P.   Ivanov A. V.   Wlotzka F.   Wänke H.   Galimov E. M.
Chemical Features of Particle Surfaces of Luna 16 Regolith Sample L1609

Edwards J. A.
Fault-related Volcanoes

Eichhorn G.   Accomazzi A.   Grant C. S.   Kurtz M. J.   Murray S. S.
Planetary Literature in the ADS Abstract Service

Fleming T. R.   Stofan E. R.
Eastern Eistla Regio and Implications for Coronae Modeling

Folk R. L.
50–100 nm Carbon Balls in Allende Meteorite Morphologically Identical to 
Nannobacteria
Colonies on Earth

Fugzan M. M.   Shukolyukov Yu. A.
The Problems of Xe-Te Geochronology

Garcia P. A.   Eliason E. M.   Larsen D. R.   Waltz R.
Obtaining Cartographic Image Maps from the PDS Planetary Image Atlas

Giblin I.   Davis D. R.   Di Martino M.
Not Quite Catastrophic:  Impact Experiments of the Subdisruptive Type

Gibson E. K. Jr.   McKay D. S.   Thomas-Keprta K.
Exobiological Features Within ALH84001:  Current Observations

Gibson R. L.   Reimold W. U.   Stevens G.
Impact-related Metamorphism in the Vredefort Dome, South Africa

Golubeva L. F.   Shestopalov D. I.
Is There Aluminum in the Pyroxenes of 4 Vesta?

Greenberg R.   Hoppa G. V.   Geissler P. E.   Tufts B. R.   Durda D. D.   
Galileo Imaging Team 
Ridges on Europa:  A Proposed Taxonomy and Genetic Interpretation

Grin E. A.
Tapping Groundwater on Mars by Air Drilling:  Where and How?

Gurov E. P.   Kulish L. I.
Glasses from the Caspian Sea Basin

Head J. W.   Wilson L.
Interpretation of Mars Pathfinder and Viking Soil and Rock Geochemical 
Results:  A Physical
Volcanology Perspective

Head J. W.   Wilson L. W.
Tharsis Montes as Composite Volcanoes?:  3. Lines of Evidence for 
Explosive Volcanism in
Edifice Construction

Head J. W.   Reed J. S.   Weitz C.
Lunar Rima Parry IV:  Dike Emplacement Processes and Consequent Volcanism

Head J. W.   Seibert N.   Pratt S.   Smith D.   Zuber M.   MOLA Science Team 
Detection of Lava Flow Unit Thicknesses and Characteristics on Mars:  
First Results from Mars Orbiter Laser Altimeter (MOLA) Data

Hiroi T.   Pieters C. M.
Modified Gaussian Deconvolution of Reflectance Spectra of Lunar Soils

Hrjanina L. P.
Nechaeva's Impact Conception of the Earth's Geological Development

Hrjanina L. P.
Once Again About Kainozoic Meteorite Structures in the Ross Sea, 
Antarctica

Ivanov M. A.   Head J. W.
Rates of Resurfacing in the Post-Tessera Geologic History of Venus

Ivanov M. A.   Head J. W.
Stratigraphy of Coronae on Venus:  Results from Mapping a Global 
Geotraverse at 30N Latitude

Jakosky B. M.   Shock E. L. 
The Biological Potential of Mars, the Early Earth, and Europa

Jones R. H.
A Compilation of Olivine and Low-Ca Pyroxene Compositions in Type 4–6 
Ordinary Chondrites

Kashkarov L. L.   Nazarov M. A.   Kalinina G. V.   Lorenz K. A.   
Kononkova N. N.
Fission Track Dating of the Boltysh Impact Crater, Ukraine

KenKnight C. E.
Conditions for Growth of Qingzhen Chondrules and Their Precursors

Koeberl C.   Buchanan P. C.   Carlton R. W.
Petrography and Geochemistry of Drill Core Samples from the Serpent Mound 
Structure, Ohio:  Confirmation of Impact Origin

Korotev R. L.   Wang A.   Haskin L. A.   Jolliff B. L.
A Raman Point-Count Study of Apollo 17 Soil

Kozlov E. A.   Zhugin Yu. N.   Litvinov B. V.   Feldman V. I.   Sazonova L. V.   
Medvedev A. V.
Loading Impulse Amplitude Estimation According to Feldspar Chemical 
Composition Changes for
Impacted Rock

Kreslavsky M. A.
Interaction of Ridge Pattern with Volcanic Shields on Venus:  A New 
Approach for Timing of
Geological Events

Kreslavsky M. A.   Vdovichenko R. V.
Microdunes on Venus:  Are They Ubiquitous?

Kreslavsky M. A.   Shkuratov Yu. G.   Kaydash V. G.
Lunar Opposition Surge Observed by Clementine:  New Results

Leya I.   Michel R.
Modeling the Cosmic Ray Record of the Iron Meteoroid Grant

Lin Y.   Kimura M.
Type B Inclusions in the Ningqiang Carbonaceous Chondrite

Lingemann C. M.   Stöffler D.
New Evidence for the Colouration and Formation of Ringwoodite in Severely 
Shocked Chondrites

Liu S. Y.   Wilson L.
Collapse Pits Due to Gas Release from Shallow Dikes on Mars

Llorca J.
Gas-Grain Chemistry of Carbon in Interplanetary Dust Particles:  Kinetics 
and Mechanism of
Hydrocarbon Formation

Makarenko G. F.
The Venus and the Earth Have Structural Axial Symmetry

Mardon A. A.
Robotic Tunnelling for Lunar Exploration

Marzari F.   Weidenschilling S. J.
Mean Motion Resonances and Gas Drag in the Early Asteroid Belt

McEwen A.   Eliason E.   Lucey P.   Malaret E.   Pieters C.   Robinson M.   
Sucharski T.
Summary of Radiometric Calibration and Photometric Normalization Steps for 
the Clementine
UVVIS Images

Michael G. G.
Steady State Crater Degradation on the Highlands of Mars and the Moon

Miono Sh.   Detre Cs. H.   Bérczi Sz.*   Don Gy.   Dosztály L.   Solt P.   
Tóth I.   Uzonyi I.   Lukács B.
Permo-Triassic Boundary Cosmic Spherule Layers in Eurasia

Miura Y.   Kobayashi H.   Fukuyama S.   Gucsik A.
Compositional Changes by Multiple Impacts

Miyamoto M.   Mikouchi T.
Diffuse Reflectance Spectra for Heated Samples of an H5 Chondrite

Moore J. M.   Bullock M. A.   Mellon M. T.   Zent A. P.   Woosley C. L.
Martian Brines and Evaporites:  Experimental Studies

Morris R. V.   Squyres S. W.   Bell J. F. III   Christensen P. H.   
Economou T.   Klingelhöfer G.   Held P.   Haskin L. A.   Wang A.   
Jolliff B. L.   Rieder R.
Analyses of Martian Surface Materials During the Mars Surveyor 2001 
Mission by the
Athena Instrument Payload

Murty S. V. S.
Nitrogen Components in CV3 Chondrites

Nazarov M. A.   Brandstätter F.   Kurat G.   Ntaflos T.
Chemistry of P-rich Sulfides in Murchison, Cold Bokkeveld and Nogoya CM 
Chondrites

Niebur C. S.   Arvidson R. E.   Bowman J.
A Mission Model for the 2001 Mars Rover/Athena Payload

Oguchi T.   Komatsu G.   Baker V. R.
Channels on the Plateaus Along the Valles Marineris and Their 
Paleohydrological Implications

Okada T.
Applications of PWS of Planet-B for Surface Physical Properties of Mars 
and Its Satellites

Pappalardo R. T.   Head J. W.   Sherman N. D.   Greeley R.   Sullivan R. J.   
Galileo Imaging Team
Classification of Europan Ridges and Troughs and a Possible Genetic 
Sequence

Pepin R. O.   Palma R. L.   Rider P. E.   Schlutter D. J.   Weiblen P. W.
Solar Wind and Spallation Neon in Small Dark Fragments Separated from the 
Kapoeta Howardite:
Evidence for Early GCR Irradiation?

Pesonen L. J.   Lehtinen M.   Tuukki P.   Abels A.
The Lake Saarijärvi — A New Meteorite Impact Structure in Northern Finland

Petrichenko A. S.   Ulyanov A. A.   Lomonosov M. V.
Enstatite Chondrite PCA91020 — Opaque Minerals and Revision of 
Classification

Povenmire H.
Beaumont, Texas Meteorite Fall of May 2, 1997

Prockter L. M.   Head J. W. III   Pappalardo R. T.   Asphaug E.   
Galileo SSI Team 
Geology of Nicholson Regio from Galileo Imaging:  Evidence for Tectonic 
Focusing Through Craters

Prockter L. M.   Head J. W. III   Pappalardo R. T.   Galileo SSI Team 
Ganymede Dark Terrain:  Geology of G8 Marius Regio from Galileo

Pronin A. A.
High/Low Emissivity Critical Altitude and Stratigraphic Boundaries of 
Maxwell Montes Units on Venus

Protheroe W. J. Jr.   Stirling J.
Cathodoluminescence Study of Fragments of the Martian Meteorite ALH 84001

Pugacheva S. G.
Statistical Estimation of Maps of the Lunar Surface Relative Age

Reedy R. C.
Cosmogenic Nuclides Produced by Solar Alpha Particles

Rietmeijer F. J. M.
Non-Chondritic Cluster Fragments:  Asteroidal Volcanism That Escapes 
Recognition in Individual IDPs

Rodionova J. F.   Koroteev S. V.
The Non-Random Distribution of Martian Volcanoes

Roush T. L.   Noll K. S.   Cruikshank D. P.   Pendleton Y.
Ultraviolet Spectra of Ariel, Titania, and Oberon:  Evidence for Trapped 
OH from
Hubble Space Telescope Observations

Rubin A. E.
Sub-Centimeter-scale Brecciation in Carbonaceous and Ordinary Chondrites

Rusakov V. S.   Chistyakova N. I.   Kozerenko S. V.   Fadeev V. V.
Mössbauer Investigations of the Synthetic Tochilinites

Rushmer T.   Jones J. H.
Core Formation Under Dynamic Conditions:  An Experimental Approach

Ruzicka A.   Fowler G. W.   Snyder G. A.   Papike J. J.   Taylor L. A.   
Prinz M.
Trace-Element Constraints on Melting and Mixing Processes Affecting IIE 
Silicate Inclusions:
A Reconnaissance SIMS Study

Ruzicka A.   Riciputi L. R.   Snyder G. A.   Patchen A. D.   Taylor L. A.
Oxygen Isotopic Composition of Olivine in Ureilites:  Possible Evidence 
for Millimeter-Scale Variations

Ruzicka A. R.   Snyder G. A.   Taylor L. A.
Rare-Earth-Element Modelling of Nakhlites:  Constraints on the Proportion 
of Trapped Melt

Ruzicka A.   Snyder G. A.   Taylor L. A.
The Shergottite-Nakhlite Connection:  Forming Nakhlites as Cumulates of 
Shergottitic Melts

Sahijpal S.   Davis A. M.   Goswami J. N.
Isotopic and Trace Element Abundances in Hibonites from Murchison 
Meteorite Devoid of Radiogenic Mg and K Excesses

Schaber G. G.   Strom R. G.   Dawson D. D.
The USGS/U. of Arizona Database of Impact Craters on Venus:  New Crater 
Names and
Modification Classes for 1998

Schmidt G.   Palme H.
The Concentrations of Highly Siderophile Elements in Earth's Upper Crust 
as Inferred from the Compositions of Large Terrestrial Impact Melt Sheets

Schmitt R. T.   Hornemann U.
Shock Experiments with a Natural Anhydrite-Quartz-Sample

Schultz P. H.   van der Bogert C. H.   Pieters C. M.
The Possible Generation of Friction Melts at the Lunar Crater, Buys-Ballot

Schwartz J.  M.   McCallum I. S.
Minor Elements in Plagioclase as Indicators of Subsolidus Processes in 
Lunar and Terrestrial Rocks

Scott E. D.   Wilson L.   Head J. W.
Episodicity in the Evolution of the Large Tharsis Volcanoes

Shearer C. K.   Adcock C. T.
The Composition and Distribution of Feldspathic Shock Glass in ALH 84001

Shearer C. K.   Adcock C. T.
The Origin of Olivine in Martian Meteorite ALH 84001. The Distribution of 
Olivine

Shearer C. K.   Leshin L. A.
The Origin of Olivine in Martian Meteorite ALH 84001. The Oxygen Isotopic 
Systematics of the Olivine

Shearer C. K.   Weidenbeck M. G.   Fowler G. W.   Papike J. J.
S and Other Volatiles in Lunar Picritic Magmas and the Lunar Mantle. An 
Approach Using
Secondary Ion Mass Spectrometry

Shelfer T. D.   Morris R. V.
Effect of a Ferric Weathering Rind on the Optical and Mössbauer Spectra of 
a Basaltic Rock

Shervais J. W.   McGee J. J.
Major Element Geochemistry of Apollo 14 Highland Clasts by Fused Bead 
Elctron Microprobe Analysis:  14305 and 14321

Shestopalov D. I.   Golubeva L. F.
Computer Simulation of S-Asteroid Spectra

Shevchenko V. V.   Chikmachev V. I.
Model of the Lunar South Pole Region Relief

Shkuratov Yu. G.   Kreslavsky M. A.
A Model of Lunar Photometric Function

Siebenschock M.   Schmitt R. T.   Stöffler D.
Investigations of a Diamond Bearing Gneiss Clast in the Suevite from 
Seelbronn, Ries Crater, Germany

Siebenschock M.   Schmitt R. T.   Stöffler D.
Suevite from Hohenaltheim:  A New Deposit from the Ries Crater, Germany

Skála R.   Rohovec J.
NMR Spectroscopy of Natural Shocked Carbonates:  Comparison to Powder XRD 
Data

Snyder G. A.   Ruzicka A. M.   Taylor L. A.
Trapped Liquid and Planetary Differentiation Processes:  The Moon

Snyder G. A.   Ruzicka A. M.   Taylor L. A.   Patchen A. D.
Journey to the Center of the Regolith:  A Spinel Troctolite and Other 
Clasts from Drive Tube 68001

Sokur T. M.
Shock Metamorphism of Quartz of the Zapadnaya Crater, Ukraine

Stankevich D. G.   Shkuratov Yu. G.
Simulation of Shadow-Hiding Opposition Effect of Particulate Surfaces and 
Lunar Phase Function Derived from Clementine Data

Starukhina L. V.   Shkuratov Yu. G.
The Position of 1 and 2 mm Absorption Bands in Orthopyroxene and Olivine 
Spectra:  The Effect of Reduced Iron

Stroganov I. A.   Korotchantsev A. V.   Lorenz C. A.
The Mass Distribution of the Sikhote-Alin Meteorite Shower:  New Data

Sunshine J. M.   Binzel R. P.   Burbine T. H.   Bus S. J.
Is Asteroid 289 Nenetta Compositionally Analogous to the Brachinite 
Meteorites?

Thomas-Keprta K. L.   McKay D. S.   Wentworth S. J.   Stevens T. O.   
Taunton A. E.   Allen C. C.   Gibson E. K. Jr.   Romanek C. S.
Mineralization of Bacteria in Terrestrial Basaltic Environments:  
Comparison with Possible Life Forms in Martian Meteorite ALH84001

Vidmatchenko A. P.
On Activity of Jupiter's Atmosphere

Wang A.   Haskin L. A.   Jolliff B. L.
Characterization of Mineral Products of Oxidation and Hydration by Laser 
Raman Spectroscopy — Implications for In Situ Petrologic Investigation on 
the Surface of Mars

Watters T. R.   Robinson M. S.   Cook A. C.
Lobate Scarps on Mercury:  Magnitude of Compressional Stresses and Depth 
of Faulting

Weber I.   Bischoff A.
Mineralogy and Chemistry of the Ureilites Hammadah Al Hamra 064 and 
Jalanash

Weckwerth G.   Weber D.
Hammadah Al Hamra 073, the Third Member of the Coolidge-type Grouplet:  
Implications for Element Fractionation Trends in Carbonaceous Chondrites

Weidenschilling S. J.
Mercury's Polar Radar Anomalies:  Ice and/or Cold Rock?

Weitz C. M.   Gardner J. E.
The Stealth Deposit on Mars:  Is It a Volcanic Deposit?

Weitz C. M.   Hort M.
Theoretical Modeling of Martian Plinian Eruptions

Wentworth S. J.   Thomas-Keprta K. L.   Taunton A. E.   Velbel M. A.   
McKay D. S.
Possible Weathering Features in ALH84001

Wilson C. L.   Hinman N. W.   Brown C. F.
Diel Cycling of Hydrogen Peroxide in Surface Geothermal Waters:  Possible 
Formation from
Metal Redox Reactions

Wilson L.   Head J. W.
Evolution of Magma Reservoirs Within Shield Volcanoes on Mars

Wilson L.   Head J. W.
Ganymede Cryovolcanism:  Ascent and Eruption of Magma and Its Role in 
Resurfacing

Wilson L.   Head J. W.   Mitchell K. L.
Tharsis Montes as Composite Volcanoes?:  2. Lines of Evidence for 
Explosive Volcanism in
Far-Field Deposits

Wilson T. L.
Neutrino Production by the Moon

Wright I. P.   Grady M. M.   Pillinger C. T.
On the 14C and Amino Acids in Martian Meteorites

Yamamoto H.   Homma K.   Isobe T.   Matsushima K.
Automatic Recognition of Arbitrary Shapes in Planetary Images

Yingst R. A.   Head J. W. III   Pappalardo R. T.   Chapman C. R.   Moore J. M.   
Galileo SSI Team 
Geologic Structure and Regolith Processes of Xibalba Sulcus, Ganymede as 
Indicated by Very High Resolution Galileo Imagery

Zetzer J. I.   Michin C. V.   Ovsannicov G. A.
Mantle Convection and Simulation of Convection with Internal Heating Using 
Microwave Radiation

Zimbelman J. R.
Lacustrine Deposits on Crater Floors as Possible Targets for Mars Surveyor 
Sample Return Missions

Zubko E. S.   Kreslavsky M. A.   Shkuratov Yu. G.
Negative Polarization of Light Scattered by Regolith and Cometary Dust:  
The Role of Wavelength-scale Scatterers