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LaPaz Icefield 031022
Basic information Name: LaPaz Icefield 031022
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 031022
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 4.2 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 28(2)  (2005)  CM2
Meteoritical Bulletin:  MB 91  (2007)  CM2
Recommended:  CM2    [explanation]

This is 1 of 541 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 1 Sep 2005
Writeuphelp
Writeup from AMN 28(2):
Sample No.: LAP 031022
Location: LaPaz Ice Field
Field No.: 16018
Dimensions (cm):   2.5x1.5x1.0
Weight (g): 4.158
Meteorite Type: CM2 Chondrite
    LAP 031022

Macroscopic Description: Kathleen McBride
The meteorite has black patches of fusion crust over 20% of its surface. The charcoal gray matrix contains white specks.

Thin Section (,2) Description: Tim McCoy
The section consists of numerous small chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Chondrules exhibit relatively little alteration and are set in a matrix of serpentine. Olivine compositions are Fa1-12, with a peak at Fa0-2; a single pyroxene is Fs1. The meteorite is a CM2 chondrite.


LAP 031022 - Cross-Polarized Light LAP 031022 - Reflected Light LAP 031022 - Reflected Light
LAP 031022
Cross-Polarized Light
LAP 031022
Reflected Light
LAP 031022
Reflected Light
Data from:
  MB91
  Table 4
  Line 491:
Mass (g):4.2
Class:CM2
Weathering grade:B
Fayalite (mol%):1-12
Ferrosilite (mol%):1
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 28(2) (2005), JSC, Houston
Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)
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Photos:
CreditPhotos
Photographs from AMN:
Photograph from unknown source A photo is in the write-up above
Photos from the Encyclopedia of Meteorites:
unknown            
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)

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