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LaPaz Icefield 031342
Basic information Name: LaPaz Icefield 031342
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 031342
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 3.2 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 29(2)  (2006)  Ureilite
Meteoritical Bulletin:  MB 92  (2007)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 515 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 1 Sep 2006
Writeuphelp
Writeup from AMN 29(2):
Sample No.: LAP 031342
Location: LaPaz Ice Field
Field No.: 16276
Dimensions (cm):   1.75x1.5x0.75
Weight (g): 3.182
Meteorite Type: Ureilite


Macroscopic Description: Kathleen McBride
The exterior has brown/black fusion crust with oxidation halos. The interior has a crystalline matrix with rust and high metal. The interior is gray with glass vein (?). Some areas are vesicular and others are white and powdery.


Thin Section (,2) Description: Linda Welzenbach and Valerie Reynolds
The section consists of an aggregate of large olivine and pyroxene grains up to 2 mm across. Individual olivine grains are rimmed by carbon-rich material containing traces of metal. Olivine has cores of Fa21, and rims of Fa2. Pigeonite is Fs18,Wo6. The meteorite is a ureilite.



Thin Section Images

Cross-Polarized LightPlane-Polarized LightCross-Polarized Light
LAP 031342 - Cross-Polarized Light LAP 031342 - Plane-Polarized Light LAP 031342 - Cross-Polarized Light



Lab Images

LAP 031342 Image North

Data from:
  MB92
  Table 3
  Line 466:
Mass (g):3.2
Class:Ure
Weathering grade:C
Fayalite (mol%):2-21
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 39173 approved meteorites from Antarctica (plus 5051 unapproved names)

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