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Elephant Moraine 83202
Basic information Name: Elephant Moraine 83202
     This is an OFFICIAL meteorite name.
Abbreviation: EET 83202
Observed fall: No
Year found: 1983
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1213 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 8(1)  (1985)  L5-6
AMN 9(4)  (1986)  L6
Meteoritical Bulletin:  MB 76  (1994)  L6
NHM Catalogue:  5th Edition  (2000)  L6
MetBase:  v. 7.1  (2006)  L5-6
Recommended:  L5-6    [explanation]

This is 1 of 61 approved meteorites classified as L5-6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeuphelp
Writeup from AMN 8(1):

Sample No.: EET83202

Location: Elephant Moraine

Weight (g): 1213.2

Field No.: 1446

Dimensions (cm): 12 x 7 x 7.5

Meteorite Type: L5-6 Chondrite

 

Macroscopic Description: René Martinez

This meteorite is roughly rectangular in shape. Approximately 50% of its exterior surface retains fusion crust. Where the fusion crust has weathered away, the surface is smooth and reddish-brown. Fractures are numerous. The interior is light and dark gray with abundant mm-size light inclusions.

 

Thin Section (,3) Description: Glenn MacPherson

Some limonitic stain is locally present, suggesting light weathering. Chondrules up to 1.5-mm diameter are sharply defined. The meteorite is brecciated. The clasts have well-developed plagioclase, but that in the matrix is much finer grained. Olivine is uniformly Fa24-25. Pyroxene (Fs22-23) is mostly orthorhombic. Metal and troilite are subequal but low in abundance. Anisotropic tetrataenite (approx. 55% Ni) was found, in addition to kamacite.. The meteorite is an L5-6 chondrite.

Data from:
  MB76
  Table 2
  Line 1467:
Origin or pseudonym:Main icefield
Mass (g):1213.2
Class:L6
Weathering grade:A/B
Fayalite (mol%):24-25
Ferrosilite (mol%):22-23
Comments:26Al=64±4
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 8(1) (1985), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (76° 11'S, 157° 10'E)
     Recommended::   (76° 17' 58"S, 157° 13' 1"E)
Note: the NHM and MetBase coordinates are 13 km apart

Statistics:
     This is 1 of 41908 approved meteorites from Antarctica (plus 3802 unapproved names)
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