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LaPaz Icefield 031043
Basic information Name: LaPaz Icefield 031043
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 031043
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 8.1 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 29(2)  (2006)  CM2
Meteoritical Bulletin:  MB 92  (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 2006
Writeuphelp
Writeup from AMN 29(2):
Sample No.: LAP 031043; LAP 031165; LAP 031195; LAP 031268; LAP 031299
Location: LaPaz Ice Field
Field No.: 16435; 16670; 16682; 16813; 16980
Dimensions (cm):   3.0x2.5x1.0; 4.0x3.0x3.0; 1.25x1.25x0.25; 3.0x2.5x2.0; 2.5x1.75x1.25
Weight (g): 8.121; 27.000; 0.625; 15.407; 6.927
Meteorite Type: CM2 Chondrite


Macroscopic Description: Kathleen McBride
Black polygonally fractured fusion crust is on the exterior of these meteorites. The interior of these carbonaceous chondrites is a black powdery matrix with light gray and white chondrules and inclusions.


Thin Section (,2) Description: Tim McCoy
The sections consist of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa1-48; rare orthopyroxenes are Fs1-38. The matrix consists pre-dominantly of an Fe-rich serpentine. The meteorites are CM2 chondrites.



Thin Section Images

Cross-Polarized
Light LAP 031043
Plane-Polarized
Light LAP 031043
Reflected
Light LAP 031043
LAP 031043 - Cross-Polarized Light
LAP 031043 - Plane-Polarized Light LAP 031043 - Reflected Light
Cross-Polarized
Light LAP 031165
Plane-Polarized Light
LAP 031165
Cross-Polarized Light
LAP 031195
Plane-Polarized Light
LAP 031195
<a href=LAP 031165 - Cross-Polarized Light"> <a href=LAP 031165 - Plane-Polarized Light">
LAP 031195 - Cross-Polarized Light LAP 031195 - Plane-Polarized Light
Cross-Polarized
Light LAP 031268
Plane-Polarized Light
LAP 031268
Cross-Polarized Light
LAP 031299
Plane-Polarized Light
LAP 031299
<a href=LAP 031268 - Cross-Polarized Light"> <a href=LAP 031268 - Plane-Polarized Light">
<a href=LAP 031299 - Cross-Polarized Light"> <a href=LAP 031299 - Plane-Polarized Light">



Lab Images

LAP 031043,0 ,1 Image
LAP 0311043 Image North
LAP 031165,0 ,1 Image Interior
LAP 031195 Image North
LAP 031268,0 ,1 ,3 Image North
LAP 031299,0 ,1 Image

Data from:
  MB92
  Table 3
  Line 323:
Mass (g):8.1
Class:CM2
Weathering grade:A/B
Fayalite (mol%):1-48
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 40129 approved meteorites from Antarctica (plus 4494 unapproved names)

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