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LaPaz Icefield 031117
Basic information Name: LaPaz Icefield 031117
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 031117
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 4.2 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 29(2)  (2006)  CO3
Meteoritical Bulletin:  MB 92  (2007)  CO3
Recommended:  CO3    [explanation]

This is 1 of 504 approved meteorites classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 1 Sep 2006
Writeuphelp
Writeup from AMN 29(2):
Sample No.: LAP 031117
Location: LaPaz Ice Field
Field No.: 16672
Dimensions (cm):   2.1x1.2x0.5
Weight (g): 4.173
Meteorite Type: CO3 Chondrite


Macroscopic Description: Cecilia Satterwhite
The exterior has black fractured fusion crust that is frothy in areas. The interior is a fine grained black matrix with mm sized white inclusions.


Thin Section (,2) Description: Tim McCoy
The section consists of abundant small (up to 1 mm) chondrules, chondrule fragments and mineral grains in a dark matrix. Metal and sulfide occur within and rimming the chondrules. Olivine ranges in composition from Fa1-36, with a continuous range of intermediate compositions and a slight peak at Fa1-5. A single pyroxene is Fs1. The meteorite is a CO3 chondrite.



Thin Section Images

Cross-Polarized LightPlane-Polarized Light
LAP 031117 - Cross-Polarized Light LAP 031117 - Plane-Polarized Light



Lab Images

LAP 031117 Image Post

Data from:
  MB92
  Table 3
  Line 330:
Mass (g):4.2
Class:CO3
Weathering grade:B
Fayalite (mol%):1-36
Ferrosilite (mol%):1
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 29(2) (2006), JSC, Houston
Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photographs from AMN:
JSC A photo is in the write-up above
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 38431 approved meteorites from Antarctica (plus 5051 unapproved names)

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