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LaPaz Icefield 04612
Basic information Name: LaPaz Icefield 04612
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 04612
Observed fall: No
Year found: 2004
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 22.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 30(2)  (2007)  L3
Meteoritical Bulletin:  MB 94  (2008)  L3
Recommended:  L3    [explanation]

This is 1 of 680 approved meteorites classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 31 Aug 2007
Writeuphelp
Writeup from AMN 30(2):
Sample No.: LAP 04612
Location: LaPaz Ice Field
Field No.: 17003
Dimensions (cm):   3.5 x 2.5 x 1.5
Weight (g): 22.433
Meteorite Type:

L3 Chondrite



Macroscopic Description: Kathleen McBride
90% of this ordinary chondrite's exterior has brown/black fusion crust with oxidation haloes. The interior is a gray matrix with high metal content and numerous gray and white chondrules.

Thin Section (,2) Description: Tim McCoy, Lauren LaCroix and Linda Welzenbach
The section exhibits numerous large, well-defined chondrules (up to 3 mm) in a black matrix of fine-grained silicates, metal and troilite. Strong shock effects are present. The meteorite is moderately weathered. Silicates are unequilibrated; olivines range from Fa8-25, with most grains Fa20-22, and pyroxenes from Fs4-19. The meteorite is an L3 chondrite (estimated subtype 3.8).



Thin Section Images

Plane-Polarized
Light LAP 04612
Cross Polarized Light
LAP 04612
LAP04612 - Plane-Polarized Light LAP04612 - Cross Polarized Light



Lab Images

LAP 04612

Data from:
  MB94
  Table 4
  Line 159:
Mass (g):22.433
Class:L3
Weathering grade:B
Fayalite (mol%):8-25
Ferrosilite (mol%):4-19
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 30(2) (2007), JSC, Houston
Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
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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