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LaPaz Icefield 031079
Basic information Name: LaPaz Icefield 031079
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 031079
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 29(2)  (2006)  CM1
Meteoritical Bulletin:  MB 92  (2007)  CM1
Recommended:  CM1    [explanation]

This is 1 of 26 approved meteorites classified as CM1.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 1), CM chondrites, and CM-CO clan chondrites
Comments: Approved 1 Sep 2006
Writeuphelp
Writeup from AMN 29(2):
Sample No.: LAP 031079
Location: LaPaz Ice Field
Field No.: 16427
Dimensions (cm):   1.5x1.0x1.0
Weight (g): 1.843
Meteorite Type: CM1 Chondrite


Macroscopic Description: Kathleen McBride
The exterior is a dull dark gray color. The interior of this carbonaceous chondrite is a muddy gray with no distinctive features.


Thin Section (,2) Description: Tim McCoy
The section consists of a few small chondrules (up to 0.5 mm) that have been completely replaced by phyllosilicate set in an Fe-rich serpentine matrix. No isolated mineral grains or CAIs are apparent; sulfide and carbonate grains are present. Unaltered olivine or pyroxene grains of sufficient size for microprobe analyses were not found. The meteorite is a highly altered CM chondrite probably of petrologic type 1.



Thin Section Images

Cross-Polarized LightPlane-Polarized Light
LAP 031079 - Cross-Polarized Light LAP 031079 - Plane-Polarized Light



Lab Images

LAP 031079 Image

Data from:
  MB92
  Table 3
  Line 327:
Mass (g):1.8
Class:CM1
Weathering grade:C
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 38940 approved meteorites from Antarctica (plus 5051 unapproved names)

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