Sixth Lunar Science Conference

TABLE OF CONTENTS

no.

Spinel Symplectites: High-Pressure Solid-State Reaction or Late-Stage Magmatic Crystallization?
A. L. Albee, R. F. Dymek, D. J. Depaolo 		  1001

Observations on 204Pb, Bi, TL and Zn in Apollo 17 Samples
R. O. Allen Jr., S. Jovanovic, G. W. Reed Jr. 		  1002

Photoconductivity in Lunar Material
R. Alvarez 		  1003

Farside Lunar Gravity From A Mass Point Model
M. P. Ananda 		  1004

High Resolution Mapping of the Lunar Surface Remanent Magnetic Field by Energetic Electron Scattering
K. A. Anderson, R. P. Lin, R. E. McGuire, H. C. Howe, J. E. McCoy 		  1005

Synthesis of Remote Sensing Data From the Tranquillitatis/Serenitatis Area
C. G. Andre, M. E. Hallam, P. E. Clark, M. H. Podwysocki, J. R. Weidner, I. Adler 		  1006

A Monte Carlo Model for Lunar Surface Properties
J. R. Arnold 		  1007

Persistent Internal Polarization of Lunar Dust-Implications for Behavior of Grains in Space
G. Arrhenius, S. K. Asunmaa 		  1008

Lunar Surface Dynamics: Multiple Exposure Histories of Bench Crater Samples and Rates of Surface Processes
R. E. Arvidson, D. S. Burnett, R. J. Drozd, C. M. Hohenberg, C. J. Morgan, F. A. Podosek 		  1009

Latitude Effects in Lunar Thermal Evolution
J. A. Bastin, R. V. Butt 		  1010

Episodic Lunacy-VI: Trace Element Studies on Grain-Size Fractions of Lunar Soils and the A-17 Deep Drill Core
A. Bates, M. R. Coscio, V. R. Murthy 		  1011

Nitrogen Abundances and Isotopic Compositions in Lunar Samples
R. H. Becker, R. N. Clayton 		  1012

Cataclastic Plutonites: Possible Keys to the Evolutionary History of the Early Moon
P. M. Bell, H. K. Mao 		  1013

Chemical and Petrologic Relations Among Lunar Highlands Rock Types
A. E. Bence, S. R. Taylor, P. M. Muir, W. B. Nance, R. Rudowski, N. Ware 		  1014

The Lunar Ionosphere
J. Benson, J. W. Freeman, H. K. Hills, M. Ibrahim, H. Schneider 		  1015

The Maturation of Lunar Dust Grains
J. L. Bertaut, J. P. Bibring, J. Borg, A. L. Burlingame, Y. Langevin, M. Maurette, F. C. Walls 		  1016

Effects of Exposure Conditions on Cosmic-Ray Records in Lunar Rocks
S. K. Bhattacharya, N. Bhandari 		  1017

Lunar Regolith and Gas-Rich Meteorites: Characterization Based on Grain Size Distribution and Radiation and Particle Bombardment Effects in Free Space
S. K. Bhattacharya, J. N. Goswami, D. Lal, P. P. Patel, M. N. Rao 		  1018

Lunar Topography: Evidence for Global Scale Lateral Density Variations
B. G. Bills, A. J. Ferrari 		  1019

On the Petrology and Structure of a Gravitationally Differentiated Moon of Fission Origin
A. Binder 		  1020

A Geochemical and Petrographic Study of 1-2mm Fines from Apollo 17
D. P. Blanchard, R. L. Korotev, J. C. Brannon, J. W. Jacobs, L. A. Haskin, A. M. Reid, C. H. Donaldson, R. W. Brown 		  1021

Long-Term Energy Spectrum of Solar Flare Iron-Group Particles
G. E. Blanford, R. M. Fruland, D. A. Morrison 		  1022

Volatile Gases in Breccia 68115
D. D. Bogard, E. K. Gibson Jr. 		  1023

Negative Gravity Anomalies on the Moon
C. Bowin 		  1024

Scattering of Far Infrared Radiation by Lunar Fines
J. R. Bowling, M. J. Pugh, J. A. Bastin 		  1025

Relative Age of Units in Mare Imbrium Based on A Quantitative Measure of Crater Degradation
J. M. Boyce, A. L. Dial 		  1026

Surface Correlation of Volatile Elements in Apollo 16 Soils
W. V. Boynton, C. L. Chou, R. W. Bild, J. T. Wasson 		  1027

Crystal Chemistry of PU and U and Concordant Fission Track Ages of Lunar Zircons and Whitlockites
D. Braddy, I. D. Hutcheon, P. B. Price 		  1028

Magnetic Behavior of Shocked Granodiorites, With References to Lunar Rock Magnetism
A. Brecher, M. Klonowski, G. Simmons 		  1029

Textural Remanence: A New Model of Lunar Rock Magnetism
A. Brecher 		  1030

Evolution of Mare Smythii
W. J. Brennan 		  1031

Reduction of Mare Basalts by Sulfur Loss
R. Brett 		  1032

Radon Concentration at the Apollo 15 Landing Site
R. L. Brodzinski, J. C. Langford 		  1033

Mineralogy and Petrology of Apollo 17 Basalts
G. M. Brown, A. Peckett, R. Phillips, C. H. Emeleus 		  1034

Density, Chemistry and Size Distribution of Interplanetary Dust
D. E. Brownlee, F. Hoerz, J. B. Hartung, D. E. Gault 		  1035

Volcano-Tectonic Features of Crater Goclenius
W. B. Bryan, P. A. Jezek, M. L. Adams 		  1036

Annealing Studies on Fossil and Fresh Tracks in Lunar and Analogous Crystals
R. K. Bull, S. A. Durrani 		  1037

Basaltic Achondrite Polymict Breccias: an Interpretation Based on Lunar Surface Breccia Criteria
T. E. Bunch 		  1038

The Effect of Local Magnetic Fields on the Lunar Photoelectron layer While the Moon is in the Plasma Sheet
W. J. Burke, P. R. Moore 		  1039

Extremal Inversion of Lunar Travel Time Data
N. Burkhard, D. D. Jackson 		  1040

Electronic Absorption Spectroscopy as a Petrologic Probe of Lunar Materials
R. G. Burns, R. M. Abu-Eid, C.-M. Sung, D. J. Vaughan 		  1041

Calculations and Measurements of Specific Gravities of Lunar Materials
D. A. Cadenhead, J. R. Stetter 		  1042

Long-Term Water Vapor Weathering of Taurus Littrow Orange Soil: A Pore Structure Analysis
D. A. Cadenhead, R. Sh. Mikhail 		  1043

The Gargantuan Basin-Some Implications
P. H. Cadogan 		  1044

Surface Analysis of Rusty Particle 60002,108
J. L. Carter 		  1045

Simulation Study of Solar Wind C and N
S. Chang, K. Lennon 		  1046

Sulfur in Magnetic and Non-Magnetic Particles of Apollo 16 Soils
S. Chang, K. Lennon, G. Walberg 		  1047

The Petrogenesis of 77115 and Its Xenocrysts: Description and Preliminary Interpretation
E. C. T. Chao, J. A. Minkin, C. L. Thompson 		  1048

Volatiles on the Surface of Apollo 15 Green Glass and Volatile-Element Systematics in Soils From Edges of Mare Basins
C. L. Chou, W. V. Boynton, L. L. Sundberg, J. T. Wasson 		  1049

Electron Petrography of Selected North Ray Crater Breccias
J. M. Christie, G. L. Nord, J. S. Lally, A. H. Heuer, R. M. Fisher, S. V. Radcliffe, D. T. Griggs 		  1050

Lead Isotope Systematics of Soils and Soil Breccias From Taurus-Littrow
S. E. Church, G. R. Tilton 		  1051

Ferromagnetic Resonance as A Method of Studying the Micrometeorite Bombardment History of Lunar Fines
E. H. Cirlin, I. B. Goldberg, R. M. Housley, R. A. Weeks, R. Perhac 		  1052

Impact Processes and the Magnetism of the Regolith
S. M. Cisowski, M. Fuller, M. F. Rose, P. J. Wasilewski 		  1053

Vapor-Phase Crystallization of Sulfides?
U. S. Clanton, J. L. Carter, D. S. McKay 		  1054

Genetic Relations Between the Moon and Meteorites
R. N. Clayton, T. K. Mayeda 		  1055

On Changes in the Ancient Lunar Magnetic Field Intensity
D. W. Collinson, S. K. Runcorn, A. Stephenson 		  1056

Energy and Distances of Moonquakes at Apollo 17
M. R. Cooper, R. L. Kovach 		  1057

Closed System Partial Melting of A K-Rich Highlands Rock
M. L. Crawford 		  1058

Total Sulfur Contents of Apollo 15, 16, and 17 Samples
J. D. Cripe, C. B. Moore 		  1059

Rosiwal and Regolithic Retention of Solar Wind Elements
D. R. Criswell 		  1060

Processes of Sedimentation and Mixing in the Lunar Regolith Inferred From Neutron Fluence Measurements
D. B. Curtis, G. J. Wasserburg 		  1061

The Structure of the Moon as Determined From Natural Lunar Seismic Events
A. M. Dainty, N. R. Goins, M. N. Toksoez 		  1062

Simulation of Lunar Processes: I. The Formation of Acid-Hydrolysable Carbon Species By Ion Implantation?
P. R. Davis, C. T. Pillinger, G. Eglinton, H. Naziri, A. Stephenson 		  1063

Mare Spumans and Mare Undarum: Structural and Depositional History
R. A. de Hon 		  1064

The Apollo 16 Mare Component (Nectaris)
J. W. Delano 		  1065

Carbon Isotope Contents of Size Fractions of 14240,17
D. J. Desmarais, A. Basu, J. M. Hayes, W. G. Meinschein 		  1066

Petrology of Cataclastic Anorthosites From the Descartes Region of the Moon: Apollo 16
J. R. Dixon, J. J. Papike 		  1067

Optical Polarization of Lunar Samples: The Negative Branch of Polarization
A. Dollfus, J. E. Geake 		  1068

The Apollo 17 Deep Drill Core: A Possible Depositional Model
J. C. Dragon, N. L. Johnson, R. O. Pepin, A. Bates, M. R. Coscio Jr., V. R. Murthy 		  1069

The Crystallization of Plagioclase Feldspar From Silicate Melt
M. J. Drake 		  1070

Preliminary Report on the Petrology and Geochemistry of Lithic Fragments From the Apollo 15 Deep-Drill-Core
M. J. Drake, M. M. Lindstrom 		  1071

A Multidisciplinary Microprobe Analysis of Lunar "Weathering"
J. C. Dran, J. P. Duraud, J. Klossa, Y. Langevin, M. Maurette 		  1072

The "Theoretical" Solar Wind and Solar Flare Exposure Histories of Lunar Dust Grains
J. C. Dran, J. P. Duraud, G. Comstock, Y. Langevin, M. Maurette, B. Vassent 		  1073

KR and Xe in Lunar Breccias
R. J. Drozd, C. M. Hohenberg, C. Morgan 		  1074

Composition of the Lunar Interior: ANTS to 300 km?
A. Duba, A. J. Piwinskii 		  1075

Meteoroid Flux From Long Period Lunar Seismic Data
F. K. Duennebier, J. Dorman, D. Lammlein, G. Latham, Y. Nakamura 		  1076

Compositional Variability of the Apollo 15 Regolith
A. R. Duncan, M. K. Sher, Y. C. Abraham, A. J. Erlank, J. P. Willis, L. H. Ahrens 		  1077

Petrology of Some Apollo 16 Feldspathic Basalts: KREEP Melt Rocks?
M. A. Dungan, B. N. Powell, P. W. Weiblen 		  1078

Global Lunar Properties From Surface Magnetometer Measurements
P. Dyal, C. W. Parkin, W. D. Daily 		  1079

A Petrologic Comparison of the Kapoeta Parent Planet With the Moon
R. F. Dymek, A. L. Albee, G. J. Wasserburg 		  1080

Petrology of Apollo 17 Mare Basalt 74255
R. F. Dymek, A. L. Albee, A. A. Chodos 		  1081

Kr81-Kr Exposure Ages of Some Apollo 14, Apollo 16 and Apollo 17 Rocks
P. Eberhardt, O. Eugster, J. Geiss, H. Graf, N. Groegler, M. Moergeli, A. Stettler 		  1082

Chemical Studies of the Lunar Regolith With Emphasis on Zirconium and Hafnium
W. D. Ehmann, L. L. Chyi, B. R. Hawke, M.-S. Ma, M. D. Miller, R. A. Pacer 		  1083

Correlations of Data on the East Side of the Moon
F. El-Baz, D. E. Wilhelms 		  1084

Primordial Radioelements and Cosmogenic Radionuclides in Rocks and Soils From Descartes and Taurus-Littrow
J. S. Eldridge, G. D. O'Kelley, K. J. Northcutt 		  1085

Subsolidus Reduction of Lunar Opaque Oxides: Evidence, Assemblages, Geochemical Relevance, and Evidence For A Late Stage Reducing Gaseous Mixture
A. El Goresy, P. Ramdohr 		  1086

Taurus-Littrow TiO2-Rich Basalts: Opaque Mineralogy and Geochemistry
A. El Goresy, P. Ramdohr 		  1087

Lunar Crater Chains of Non-Impact Origin
D. Eppler, G. H. Heiken 		  1088

Carbon, Hydrogen, Oxygen, and Silicon Isotope Relationships in the Lunar Regolith
S. Epstein, H. P. Taylor Jr. 		  1089

Solar Wind and Other Trapped Gases in Lunar Material
O. Eugster, P. Eberhardt, J. Geiss, N. Groegler, M. Jungck, M. Morgeli 		  1090

A Comparison of Near and Farside Lunar Gravity
A. J. Ferrari 		  1091

Observations on the Apollo 16 Ultrafines
R. B. Finkelman, R. P. Christian, M. Schnepfe, S. Berman 		  1092

Solar-Wind Tritium Limit From Surveyor 3
E. L. Fireman, J. D'Amico, J. Defelice 		  1093

Thermal Conductivity of Particulate Basalt: Sample Size <38 mum-5mm
J. A. Fountain, E. A. West 		  1094

Amino Acid Precursors in Returned Lunar Samples From Apollo 17: Further Evaluation of Contamination
S. W. Fox, K. Harada, P. E. Hare 		  1095

Diffusive Loss of Volume Correlated He and NE From 15421 Soil Feldspar
U. Frick, H. Baur, H. Funk, P. Signer 		  1096

Primordial Radionuclide Variations in the Apollo 15 and 17 Deep Core Samples
J. S. Fruchter, L. A. Rancitelli, R. W. Perkins 		  1097

The Isotopic Composition of Li, K and RB in Some Apollo 11, 12, 15, and 16 Samples
E. L. Garner, L. A. Machlan, I. L. Barnes 		  1098

Late Thermal History of Lunar Anorthosite 67075: Evidence From Cation Order in Olivine and Orthopyroxene
S. Ghose, C. Wan, I. S. McCallum 		  1099

Controlled Shock Experiments of Lunar Analogues
R. V. Gibbons, F. Hoerz, T. D. Thompson, T. J. Ahrens 		  1100

Breccias and Crystalline Rocks From Apollo 16 Which Contain Carbonate-Like Phases
E. K. Gibson Jr., G. W. Moore 		  1101

Carbon, Sulfur, Hydrogen, and Metallic Iron Abundances in Apollo 15 and Apollo 17 Basalts
E. K. Gibson Jr., S. Chang, K. Lennon, G. W. Moore, G. W. Pearce 		  1102

Auger Analysis of the Lunar Soil: Study of Processes Which Change the Surface Chemistry and Albedo
T. Gold, E. Bilson, R. L. Baron 		  1103

Extralunar Origin of the Lunar Soil
T. Gold 		  1104

Hydrogen, Carbon, and Teflon on the Surfaces of Lunar Samples
R. H. Goldberg, D. S. Burnett, T. A. Tombrello, R. A. Weller 		  1105

The Lunar Ionosphere: Model and Observations
B. E. Goldstein, C. T. Russell 		  1106

The Structure and Thermal History of Five Large Metal Particles From the Lunar Regolith
J. I. Goldstein, H. J. Axon, S. O. Agrell 		  1107

Charge Spectrum Analyses of Low Energy Solar Cosmic Ray Nuclei: (Z=20-40; Kinetic Energy <10 MeV/amu)
J. N. Goswami, D. Lal 		  1108

A Model for the Emplacement of Lunar Basin-Filling Basalts
R. Greeley 		  1109

Experimental Petrology and Petrogenesis of Apollo 17 Mare Basalts
D. H. Green, A. E. Ringwood, N. G. Ware, W. O. Hibberson 		  1110

Modal Analyses, Grain Size Frequency Distributions and Scanning Electron Microscope Studies of Some Apollo 17 Fines
G. M. Greene, D. T. King Jr., G. S. Banholzer Jr., E. A. King 		  1111

Magnetic Phases in Lunar Green and Orange Glass Droplets: Possible Relics of Mare Volcanism
D. L. Griscom, C. L. Marquardt, E. J. Friebele 		  1112

Volatile Elements and High-Temperature Condensation
L. Grossman, R. Ganapathy 		  1113

Geochemistry of Opaque Oxides in Troctolites and Basalts From Taurus Littrow
S. E. Haggerty 		  1114

Fission Track Record of Apennine Front KREEP Basalts
E. L. Haines, I. D. Hutcheon, J. R. Weiss 		  1115

Statistical Analysis of Al/Si Intensity Ratios As A Lunar Geochemical Mapping Technique
M. E. Hallam, C. G. Andre, P. E. Clark, M. H. Podwysocki, J. R. Weidner 		  1116

On the Stability of the Thermal Models of the Moon
J. A. Hamed 		  1117

Remanent Magnetism in Two Apollo 16 and Two Apollo 17 Rock Samples
R. B. Hargraves, N. F. Dorety 		  1118

Origin of the Moon by Binary Accretion
A. W. Harris 		  1119

Evidence for Early Solar System History From Lunar Craters and Implied Planetary Collisions
J. B. Hartung 		  1120

Microcrater Investigations on Lunar Rock 12001
J. B. Hartung, D. Storzer, F. Hoerz 		  1121

Observations on Titanium in Lunar Oxides and Silicates
J. D. Haselton, W. P. Nash 		  1122

Geology of the Apollo 14 Region (Fra Mauro): Stratigraphic History and Sample Provenance
J. W. Head, B. R. Hawke 		  1123

Morphology of Pyroclastic Lunar Volcanic Deposits: Implications for Eruption Conditions and Localized Sources of Volatiles
J. W. Head 		  1124

Volume of Material Ejected From Major Lunar Basins: Implications for the Depth of Excavation of Lunar Samples
J. W. Head, M. Settle, R. Stein 		  1125

Electrical Conductivity Studies: Refinement of the Selenotherm
H. C. Heard, A. Duba, A. J. Piwinskii, R. N. Schock 		  1126

Comparison of Silicate and Metal Geothermometers for Lunar Rocks
R. H. Hewins, J. I. Goldstein 		  1127

The Provenance of Metal in Anorthositic Rocks
R. H. Hewins, J. I. Goldstein 		  1128

Light and Dark Soils at the Apollo 16 Landing Site
D. Heymann, J. R. Walton, J. L. Jordan 		  1129

Ancient Meteoritic Component in Apollo 17 Boulders
H. Higuchi, J. W. Morgan 		  1130

Differences of the Rare Gas Abundance Pattern Between Lunar Soils and Breccias
H. Hintenberger, L. Schultz, H. W. Weber 		  1131

Rare Gases in Ilmenite and Bulk Samples of Apollo 17 Soils and Breccias
H. Hintenberger, L. Schultz, H. W. Weber 		  1132

Lead-Lead Age and Trace Element Abundances in Lunar Troctolite 76535
J. R. Hinthorne, R. Conrad, C. A. Andersen 		  1133

Implications of the Escape of Radiogenic Gases on the Internal Structure of the Moon
R. R. Hodges Jr., J. H. Hoffman 		  1134

Nonthermal Escape of Helium From the Moon
R. R. Hodges Jr., J. H. Hoffman 		  1135

Outline of A Model for Lunar Evolution
L. S. Hollister 		  1136

Blocking of the Alteration Reaction Between Water and Lunar Fines
H. F. Holmes, R. B. Gammage 		  1137

Surface Properties of A North Ray Crater Soil (Apollo 16)
H. F. Holmes, R. B. Gammage 		  1138

Thermal Diffusivity of Three Apollo 17 Rock Samples: 70215,18, 77035,44 and 70017,77
K. Horai, J. Winkler 		  1139

The Catastrophic Rupture of Lunar Rocks
F. Hoerz, D. E. Gault, E. Schneider, R. E. Hill, J. B. Hartung, D. E. Brownlee, R. V. Gibbons 		  1140

The Ries Crater and Lunar Basin Deposits
F. Hoerz, H. Gall, R. Huettner, V. R. Oberbeck, R. H. Morrison 		  1141

Reduced Fe Observed in ESCA Studies of Lunar Surface Chemistry
R. M. Housley, R. W. Grant 		  1142

A Chemical and Physical Model for the Genesis of Lunar Rocks: Part I. Crustal Rock Types
N. J. Hubbard 		  1143

A Chemical and Physical Model for the Genesis of Lunar Rocks: Part II Mare Basalts
N. J. Hubbard, J. W. Minear 		  1144

Cooling History and Significance of Exsolved Pyroxene in Lunar Noritic Breccia 77215
J. S. Huebner, M. Ross, N. L. Hickling 		  1145

Origin of the SiO2 Variation of Mare Basalt Melts
J. S. Huebner 		  1146

Superparamagnetic Clusters of Fe2+ Spins in Lunar Olivines
G. P. Huffman, G. R. Dunmyre, R. M. Fisher 		  1147

Trapped 40Ar in Troctolite 76535 and Evidence for Enhanced 40Ar-39Ar Age Plateaus
J. C. Huneke, G. J. Wasserburg 		  1148

Microcraters in Oriented Vugs-Evidence for an Anisotropy in the Micrometeoroid Flux
I. D. Hutcheon 		  1149

Temperature and Length of Storage of Surface Soil in the Shadow of Apollo 17 Boulders
F. S. W. Hwang, S. A. Durrani 		  1150

Chemical and Petrographic Characteristics of Non-Mare Melt Rocks: Implications for Lunar Impact and Volcanic Processes
A. J. Irving 		  1151

Diffuse Scattering by Domains in Lunar and Terrestrial Plagioclases
H. Jagodzinski, M. Korekawa 		  1152

X-Ray Study of Clinopyroxenes of Lunar Basalts 75035 and 75075
H. Jagodzinski, M. Korekawa, W. F. Mueller, L. Schroepfer 		  1153

Consortium Studies of Matrix of Light Gray Breccia 73215
O. B. James, K. Marti, D. Braddy, I. D. Hutcheon, A. Brecher, L. T. Silver, D. P. Blanchard, J. W. Jacobs, J. C. Brannon, R. L. Korotev, L. A. Haskin 		  1154

Petrography of the Matrix of Light Gray (Consortium) Breccia 73215
O. B. James 		  1155

39Ar-40Ar-Dating of Lunar Rocks: A Methodical Investigation of Mare Basalt 75075
E. K. Jessberger, P. Horn, T. Kirsten 		  1156

Vidicon Spectral Images: A Geophysical Study of the Lamont Feature
T. V. Johnson, D. L. Matson, R. J. Phillips, R. S. Saunders 		  1157

Fines From the Trench at Van Serg Crater: Evidence for "Recent" Mixing From Inert Gases
J. L. Jordan, D. Heymann 		  1158

Inert Gas Systematics of Fines at the Apollo 17 Landing Site: Localized Regolith Deposits at Apollo 15, 16, and 17
J. L. Jordan, D. Heymann 		  1159

Studies on Regolith Processes: Apollo 15 and 17 Labile Trace Element Implications
S. Jovanovic, G. W. Reed Jr. 		  1160

Trace Elements in Residual Liquids as Clues to Source Magmas of Lunar Samples
S. Jovanovic, G. W. Reed Jr. 		  1161

Simulation of Lunar Processes: II. Redistribution of Carbon in the Lunar Regolith During Meteorite Impact
A. J. T. Jull, P. R. Davis, G. Eglinton, L. R. Gardiner, J. R. Maxwell, C. T. Pillinger, G. M. Biggar, D. Humphries, B. D. Batts 		  1162

Cosmic Ray Interactions With the Lunar Surface Simulated by Proton Bombardment of an Artificial Lunar Core Sample
W. A. Kaiser, W. Herr, U. Herpers, H. Kulus, R. Michel, P. Roesner, K. Thierl, H. Weigel 		  1163

Implications of Origin Dynamics for Lunar Composition
W. M. Kaula 		  1164

The Saturated Activities of Short-Lived Cosmogenic Radionuclides in Lunar Samples As A Function of Their Chemical Compositions
J. E. Keith, R. S. Clark, L. J. Bennett 		  1165

Nitrogen in the Lunar Regolith: Solar Origin and Effects
J. F. Kerridge, I. R. Kaplan, C. Petrowski 		  1166

The Effects of Al3+, Cr3+, and Ti3+ on the Stability of Armalcolite in Vacuum and at 7.5 kbar
S. E. Kesson, D. H. Lindsley 		  1167

Melting Experiments on Synthetic Mare Basalts and Their Petrogenetic Implications
S. E. Kesson 		  1168

Some Differences in Natural and Simulated Tracks in Lunar Crystals
H. A. Khan, S. A. Durrani 		  1169

Viscous Flow, Crystalization Behavior and Thermal History of Lunar Braccias 70019 and 79155
L. Klein, D. R. Uhlmann, R. W. Hopper 		  1170

Problems in the Charge Assignment to Fossil Cosmic Ray Ion Tracks in Lunar Minerals
W. Kraetschmer, W. Gentner 		  1171

Evidence of Gaseous 222Radon Between Fines Grains Within Lunar Regolith
G. Lambert, J. C. Le Roulley, P. Bristeau 		  1172

Chemical Composition of Apollo 17 Samples: Boulder Breccias (2), Rake Breccias (8), and Others
J. C. Laul, R. A. Schmitt 		  1173

Chemical Composition of 18 Apollo 17 Rake Basalts and One Basalt Breccia
J. C. Laul, R. A. Schmitt, M. Robyn, G. G. Goles 		  1174

Dunite 72417: A Chemical Study
J. C. Laul, R. A. Schmitt 		  1175

Rare Gases From Etched 10084 Ilmenite
D. A. Leich, S. Niemeyer, R. S. Rajan, B. Srinivasan 		  1176

Rare Gas Studies on Boulder 1, Station 2, Apollo 17
D. A. Leich, S. B. Kahl, A. R. Kirschbaum, S. Niemeyer, D. Phinney 		  1177

Trapped Xenon From Anorthosites 60015
D. A. Leich, S. Niemeyer 		  1178

The Record of the Meteoroid Flux in the Lunar Soil
J. F. Lindsay 		  1179

Equilibrium Relations Among Iron-Titanium Oxides in Silicate Melts: The System CaMgSi2O6-"FeO"-TiO2 in Equilibrium With Metallic Iron
B. R. Lipin, A. Muan 		  1180

Metal-Metal Charge Transfer in Lunar Materials: Interpretation of Visible-Region Spectra of Ti-Rich Areas of the Moon
B. M. Loeffler, R. G. Burns, K. H. Johnson, J. A. Tossell 		  1181

Cooling History of Apollo 15 Quartz Normative Basalts Determined From Cooling Rate Experiments
G. E. Lofgren, T. M. Usselman, C. Donaldson 		  1182

The Lunar Crust: Chemically Defined Rock Groups and Their K-U Fractionation
J. F. Lovering, D. A. Wark 		  1183

Crustal Evolution of the Moon, Mars, and Mercury: Implications for the Origin of Continents
P. D. Lowman Jr. 		  1184

Basins on the Lunar North Side
B. K. Lucchitta 		  1185

Crater and "Dark Mantle" Studies in the Taurus-Littrow Area
B. K. Lucchitta, A. G. Sanchez 		  1186

Far Ultraviolet Albedo of the Moon From Apollo 17
R. L. Lucke, R. C. Henry, W. G. Fastie 		  1187

Sm-Nd Age of Apollo 17 Basalt 75075: Two-Stage Igneous Processes in Mare Basalt Genesis
G. W. Lugmair, N. B. Scheinin, K. Marti 		  1188

Petrology of Noritic Cumulates: Samples 78235 and 78238
I. S. McCallum, E. A. Mathez, F. P. Okamura, S. Ghose 		  1189

Photometric Evidence of Light Scattering Above the Lunar Terminator From Apollo Orbital Corona Photography
J. E. McCoy, C. L. Ross, D. R. Criswell 		  1190

Solar Wind Sputter Erosion on the Lunar Surface: Evidence of Time Variant Micropraticle Influx Rate
J. A. M. McDonnell, W. C. Carey 		  1191

Microcraters Observed on 15015 Breccia and Micrometeoroid Flux
J. C. Mandeville 		  1192

Comparative 238U-206Pb, 235U-207Pb, 232Th-208Pb, 206Pb-207Pb and 87Rb-87Sr Ages of Basaltic Achondrites and Early Evolution of the Solar System
G. Manhes, M. Tatsumoto, D. Unruh, J. L. Birck, C. J. Allegre 		  1193

Chemical Reduction of Glasses in Breccia 70019,93: The Most Reduced Apollo Sample
H. K. Mao, P. M. Bell, S. E. Haggerty 		  1194

Frequency Distribution of Al/Si Intensity Ratios From the Orbital Apollo 15 and 16 X-Ray Fluorescence Experiment
D. F. Nava, P. J. Schuhmann, J. A. Philpotts 		  1195

Chronology of Lunar Cratering
G. Neukum, B. Koenig, D. Storzer, H. Fechtig 		  1196

Substructures in Lunar Clinopyroxenes as Petrologic Indicators
G. L. Nord Jr., A. H. Heuer, J. S. Lally, J. M. Christie 		  1197

PB Loss From Apollo 17 Glassy Samples and Apollo 16 Revisited
P. D. Nunes, M. Tatsumoto 		  1198

U-Th-Pb Systematics of Anorthositic Gabbro 78155
P. D. Nunes, M. Tatsumoto 		  1199

Rb-Sr Ages and Initial 87Sr/86Sr for Apollo 17 Basalts and KREEP Basalt 15386
L. E. Nyquist, B. M. Bansal, H. Wiesmann 		  1200

Preliminary Analysis of the Topography of A Segment of Davy Catena
V. R. Oberbeck, R. Greeley 		  1201

Analysis of Composition Variations in High Titanium Basalts and Related Materials
M. J. O'Hara, D. J. Humphries 		  1202

Armalcolite Crystallization, Phenocryst Assemblages, Eruption Conditions and Origin of Eleven High Titanium Basalts From Taurus Littrow
M. J. O'Hara, D. J. Humphries 		  1203

Shock Metamorphic Effects From A Basin-Forming Impact on the Moon
J. D. O'Keefe, T. J. Ahrens 		  1204

Electrical Properties and Water in Lunar Soil
G. R. Olhoeft, D. W. Strangway, A. P. Annan 		  1205

Lunar Differentiation Processes as Deduced From Trace Element Abundances
H. Palme, H. Waenke 		  1206

A Rb-Sr Study of Apollo 17 Boulder 3: Dunite Clast, Microclasts, and Matrix
D. A. Papanastassiou, G. J. Wasserburg 		  1207

Reduction of Iron and Regolith Soil Maturity
G. W. Pearce, W. A. Gose, J. Lindsay 		  1208

Geological and Geochemical Units of Mare Humorum: Further Definition Using Remote Sensing and Lunar Sample Information
C. Pieters, J. W. Head, T. B. McCord, J. B. Adams, S. Zisk 		  1209

The Opening and Preliminary Examination of the Apollo 16 Contact Surface Samples
C. T. Pillinger, A. P. Gowar 		  1210

Surface Exposure History of Individual Crystals in the Lunar Regolith
G. Poupeau, R. M. Walker, D. A. Morrison 		  1211

Crystal Structures of Meteoritic and Lunar Whitlockites
C. T. Prewitt, D. R. Rothbard 		  1212

Track Studies Bearing on Solar System Regoliths
P. B. Price, D. Braddy, I. D. Hutcheon, D. MacDougall 		  1213

Chemical Evolution of the Moon: A Chondritic Composition of the Moon's Initial Mantle and Importance of the Initial Differentiation
A. Provost, M. Loubet, N. Shimizu, C. J. Allegre 		  1214

Cosmogenic Isotope Production in Apollo Deep Core Samples
L. A. Rancitelli, J. S. Fruchter, W. D. Felix, R. W. Perkins 		  1215

Lunar Nightside Electron Fluxes
D. L. Reasoner 		  1216

A Comparison of Several Cratering Equations
D. E. Rehfuss, J. C. Anselmo, N. K. Kincheloe 		  1217

An Impact Heating Model Normalized To Nuclear Experiments
D. E. Rehfuss, N. K. Kincheloe, J. C. Anselmo 		  1218

The Chemistry of Agglutinate Fractions in Lunar Soils
J. M. Rhodes, J. B. Adams, M. B. Charette, K. V. Rodgers 		  1219

Petrology of Aluminous Mare Basalts in Breccia 14063
W. I. Ridley 		  1220

Petrology of Apollo 15 Breccia 15459
W. I. Ridley 		  1221

Composition and Origin of the Moon
A. E. Ringwood 		  1222

Mare Basalt Petrogenesis
A. E. Ringwood, D. H. Green 		  1223

Meteor Crater, Arizona Rim Drilling, Volume, Thickness, Depth, and Energy Calculations
D. J. Roddy, J. M. Boyce, G. W. Colton, A. L. Dial 		  1224

Anomalous Low-K Silicate Melt Inclusions in Ilmenite From Apollo 17 Basalts
E. Roedder, P. W. Weiblen 		  1225

Major Elemental Analysis of Some Apollo 15, 16 and 17 Samples
H. J. Rose Jr., R. P. Christian, E. J. Dwornik, M. M. Schnepfe 		  1226

Estimation of the Minimum Temperature for Coexistence of Orthopyroxene, Pigeonite, and Augite and Its Application To Prediction of Temperatures of Crystallization of Lunar Pyroxenes
M. Ross, J. S. Huebner 		  1227

Solid State Convection in the Moon
S. K. Runcorn 		  1228

Low Altitude Lunar Magnetic Field Observations
C. T. Russell, P. J. Coleman Jr., B. K. Fleming, L. Hilburn, B. R. Lichtenstein, G. Schubert 		  1229

Origin of Lunar Granites as Immiscible Liquids
M. J. Rutherford, P. C. Hess 		  1230

Chemical Sorting of Mineral Compositions in Lunar Rocks
S. K. Saxena, M. Deb, R. Cox 		  1231

Statistical Comparison of the Chemistry of Lunar and Terrestrial Rocks
S. K. Saxena, A. Benimoff, N. Pingitore 		  1232

The Petrology of Two Coarse-Grained Clasts in Breccia Sample 60255
J. Schaeffer, L. S. Hollister 		  1233

The Duration of Volcanism in the Taurus-Littrow Region and Ages of Highland Rocks Returned by Apollo 17
O. A. Schaeffer, L. Husain 		  1234

The Electrical Conductivity of Polycrystalline Olivine to 5.0 GPa (50 Kbar)
R. N. Schock, A. Duba, H. C. Heard, H. D. Stromberg 		  1235

Component Abundances in Apollo 15 Soils and Breccias by the Mixing Model Technique
E. Schonfeld 		  1236

A Model for Anorthositic Gabbros
E. Schonfeld 		  1237

Solid-Liquid Equilibria Involving Spinels, Ilmenite and Pseudo Brookite in the System "FeO" Al2O3-TiO2 in Contact with Metallic Iron
W. A. Schreifels, A. Muan 		  1238

Lunar Electrical Conductivity Profiles From Inversions of Day-Night Transfer Functions Using an Asymmetric Theory
G. Schubert, B. F. Smith, C. P. Sonett, K. Schwartz, D. S. Colburn 		  1239

Morphological Constraints on Degradational and Endogenetic Processes
P. H. Schultz 		  1240

Seismically Induced Modification of Lunar Surface Features
P. H. Schultz, D. E. Gault 		  1241

Shock-Induced Exsolution in Rock-Forming Minerals: Electron Petrography of an Experimentally Shocked Ilmenite-Hematite Solid Solution
C. B. Sclar, J. F. Bauer 		  1242

Shock-Induced Subsolidus Reduction-Decomposition of Orthopyroxene and Shock-Induced Melting in Norite 78235
C. B. Sclar, J. F. Bauer 		  1243

The Geologic Evaluation and Regional Synthesis of Metric and Panoramic Photographs
D. H. Scott, J. M. Diaz, J. A. Watkins 		  1244

On the Origin of High-Ti Mare Basalts
C.-Y. Shih, H. W. Wiesmann, L. A. Haskin 		  1245

Volatile Lead Components in Lunar Regolith at the Apollo Mare Sites
L. T. Silver 		  1246

Characterization of Microcracks in Lunar Igneous Rocks
G. Simmons, D. Richter, R. Siegfried 		  1247

The Petrology of the Apennine Front Revisited
C. H. Simonds, J. L. Warner, W. C. Phinney 		  1248

Thermal Regimes in Crater Debris As Deduced From the Petrology of Apollo 17 Station 6 Boulder and Rake Samples
C. H. Simonds, W. C. Phinney, J. L. Warner, G. H. Heiken 		  1249

Lunar Maria Figure
W. L. Sjogren, W. R. Wollenhaupt 		  1250

Comprehensive Petrologic Model Based on Total Melting of Low Volatile Ultrabasic Moon
J. V. Smith, I. M. Steele 		  1251

A Crystal Structure Refinement of an Anomalous Lunar Anorthite
J. R. Smyth 		  1252

Shock-Induced Deformation Features in Terrestrial Olivine and Lunar Dunite
L. W. Snee, T. J. Ahrens 		  1253

Mare Volcanism and Lunar Crustal Structure
S. C. Solomon 		  1254

Lunar Touchstones: I Minerals
I. M. Steele, J. V. Smith 		  1255

Lunar Touchstones: III Rock Types
I. M. Steele, J. V. Smith 		  1256

Age Sequence in the Apollo 17 Station 7 Boulder
A. Stettler, P. Eberhardt, J. Geiss, N. Groegler, S. Guggisberg 		  1257

Apollonian Metamorphic Rocks -- The Products of Prolonged Subsolidus Equilibration
D. B. Stewart 		  1258

The Photogeology and Basin Configuration of Mare Smythii
H. E. Stewart, J. D. Waskom, R. A. de Hon 		  1259

Lunar Granite Clasts With Unique Ternary Feldspars
D. B. Stoeser, G. Ryder, U. B. Marvin 		  1260

Big Muley 61016: Multiphase Shock and Crystallization History of A Composite Troctolitic-Anorthositic Rock
D. Stoeffler, S. Schulien, R. Ostertag 		  1261

Sinuous Rilles of the Harbinger Mountains Region of the Moon
P. Strain, F. El-Baz 		  1262

Lunar Magnetic Anomalies
D. W. Strangway, J. C. Rylaarsdam, A. P. Annan 		  1263

Relative Cooling Rates of Mare Basalts at the Apollo 12 and 15 Sites As Deduced From Crystallographic and Chemical Studies of the Pyroxenes
H. Takeda, M. Miyamoto, T. Ishii 		  1264

Typical Processes of Exsolution, Decomposition and Inversion of Pyroxenes and Its Bearing on Thermal History of Lunar Rocks
H. Takeda, T. Ishii 		  1265

Absolute Cooling Rates of Lunar Rocks Based on the Kinetics of Zr Diffusion in Opaque Oxides: Applications to Apollo 15 Rocks From Elbow Crater
L. A. Taylor, D. R. Uhlmann, R. W. Hopper, K. C. Misra 		  1266

Mineralogy and Petrology of Apollo 15 Rock 15075
L. A. Taylor, K. C. Misra 		  1267

Petrogenesis of the Lunar Highland Crust
S. R. Taylor, A. E. Bence 		  1268

The Evolution and History of Mare Basalts as Inferred From U-Th-Pb Systematics
F. Tera, G. J. Wasserburg 		  1269

Magnetic Properties of Lunar Ilmenite
A. N. Thorpe, F. E. Senftle, C. Briggs, C. Alexander, J. Minkin 		  1270

Internal Friction Quality Factor >3100 Achieved in Lunar Rock 70215,85
B. R. Tittmann, R. M. Housley, M. Abdel-Gawad 		  1271

Thermal Evolution and the Present State of the Moon and Terrestrial Planets
M. N. Toksoez, D. H. Johnston, J. W. Minear 		  1272

Analytic Methods in Determining Elemental Composition From the Apollo Gamma-Ray Spectrometer Data
J. I. Trombka, R. C. Reedy, M. J. Bielefeld, A. E. Metzger, J. R. Arnold, C. S. Dyer, S. M. Seltzer 		  1273

Ferromagnetic Resonance As A Geothermometer For Probing The Thermal History of Lunar Samples
F. D. Tsay, A. J. Bauman 		  1274

Could an Earth-Moon Close Approach Be Responsible For Mare Formation?
D. L. Turcotte 		  1275

The History of Lunar Basin Formation Inferred From 40Ar-39Ar Dating of Highland Rocks
G. Turner, P. H. Cadogan 		  1276

The Formation of Lunar Breccias: Sintering and Crystallization Kinetics
D. R. Uhlmann, L. Klein, R. W. Hopper 		  1277

Distribution of Ejecta From South Ray Crater
G. E. Ulrich, H. J. Moore, V. S. Reed, E. W. Wolfe, K. B. Larson 		  1278

Experimentally Reproduced Textures and Mineral Chemistries of High Titanium Mare Basalts
T. M. Usselman, G. E. Lofgren, C. Donaldson, R. J. Williams 		  1279

Differentiation of A Very Thick Magma Body
D. Walker, J. Longhi, J. F. Hays 		  1280

12002 Revisited
D. Walker, R. J. Kirkpatrick, J. Longhi, J. F. Hays 		  1281

New Data on the Chemistry of Lunar Samples and About the Major Element Composition of KREEP
H. Waenke, H. Palme, H. Baddenhausen, G. Dreibus, E. Jagoutz, H. Kruse, B. Spettel, F. Teschke, R. Thacker 		  1282

Primary Matter in the Lunar Highlands
H. Waenke, H. Kruse, H. Palme 		  1283

Mineralogy and Petrology of Mare Basalts From Apollo 17 Rake Samples
R. Warner, M. Prinz, K. Keil 		  1284

Rock Physics Studies of Lunar Crustal Materials
N. Warren, R. Trice 		  1285

Wrinkle Ridges and Mare Basin Structure
J. D. Waskom 		  1286

Temporal Decrease of Siderophile/Iridium Ratios in Mature Lunar Soils
J. T. Wasson, C. L. Chou, W. V. Boynton, P. A. Baedecker 		  1287

Structure and Chemistry of Lunar and Synthetic Armalcolite
B. A. Wechsler, C. T. Prewitt, J. J. Papike 		  1288

Major and Trace Element Trends During Minor Experiments on the Crystallization of Lunar Melts
D. F. Weill, G. A. McKay 		  1289

Late Heavy Bombardment of the Moon and Terrestrial Planets
G. W. Wetherill 		  1290

Regolith Stirring and Exposure: 3-Dimensional Study
G. J. Williams, T. Gold 		  1291

Large Ion Lithophile Trace Element Abundances in Phases From 78235,34, A Lunar Norite Cumlate
S. R. Winzer, R. K. L. Lum, S. Schuhamann, J. A. Philpotts 		  1292

Origin of the Taurus-Littrow Massifs
E. W. Wolfe, V. S. Reed 		  1293

Tidal Dissipation: A Possible Heat Source For Mare Basalt Magmas
D. R. Wones, H. R. Shaw 		  1294

Lunar Petrogenesis in A Well-Stirred Magma Ocean
J. A. Wood 		  1295

ESCA Studies of Simulated Solar-Wind Reduction
L. Yin, T. Tsang, I. Adler 		  1296

22Na-26Al Studies of Lunar Regolith
Y. Yokoyama, J. L. Reyss, F. Guichard 		  1297

Mare Crater Size-Frequency Distributions: Implications For Relative Surface Ages and Regolith Development
R. A. Young 		  1298

Ion-Probe Measurements of Artificially Implanted Ions in Lunar Samples
E. Zinner, R. M. Walker, M. Maurette 		  1299

An Examination of the Aristarchus Area by Remote-Sensing Measurements
S. H. Zisk, C. A. Hodges, E. A. Whitaker, H. J. Moore, R. W. Shorthill, T. W. Thompson, D. E. Wilhelms 		  1300

The State of Meteoritic Material On The Moon
H. A. Zook 		  1301