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LaPaz Icefield 04475
Basic information Name: LaPaz Icefield 04475
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 04475
Observed fall: No
Year found: 2004
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 13.8 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 04475
Location: LaPaz Ice Field
Field No.: 17099
Dimensions (cm):   2.5 x 2.5 x 2.0
Weight (g): 13.784
Meteorite Type:

L3 Chondrite



Macroscopic Description: Kathleen McBride
The exterior of this meteorite is dark brown/black with polygonal fractures. The interior is black and rusty with moderate amounts of metal and mm sized and smaller light colored inclusions/chondrules.

Thin Section (,2) Description: Tim McCoy, Lauren LaCroix and Linda Welzenbach
The section exhibits numerous closely-packed, well-defined chondrules of a range of sizes (up to 3 mm) in a black matrix of fine-grained silicates, metal and troilite. Modest shock effects and weathering are present. Silicates are unequilibrated; olivines range from Fa5-37 and pyroxenes from Fs12-22. The meteorite is an L3 chondrite (estimated subtype 3.6).




Lab Images

LAP 04475

Data from:
  MB94
  Table 4
  Line 42:
Mass (g):13.784
Class:L3
Weathering grade:B
Fayalite (mol%):5-37
Ferrosilite (mol%):12-22
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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