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Elephant Moraine 92126
Basic information Name: Elephant Moraine 92126
     This is an OFFICIAL meteorite name.
Abbreviation: EET 92126
Observed fall: No
Year found: 1992
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 4.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 17(3)  (1994)  CO3
Meteoritical Bulletin:  MB 79  (1996)  CO3
NHM Catalogue:  5th Edition  (2000)  CO3
MetBase:  v. 7.1  (2006)  CO3
Recommended:  CO3    [explanation]

This is 1 of 553 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Writeuphelp
Writeup from AMN 17(3):
Sample No.: EET92126
Location: Elephant Moraine
Dimensions (cm): 2.4 x 1.3 x 0.6
Weight (g): 4.8
Meteorite Type: CO3 chondrite

Macroscopic Description: Cecilia Satterwhite
Black, frothy fusion crust entirely covers this carbonaceous chondrite. The interior is made up of medium to coarse grained, grayish-brown matrix. A few small weathered inclusions are present as is a small amount of metal. Oxidation is evenly scattered throughout the specimen.

Thin Section (,2) Description: Brian Mason
The section shows numerous small chondrules (up to 0.6 mm across), chondrule fragments, and mineral grains, in a black matrix containing minor amounts of nickel-iron and troilite concentrated around chondrule margins. Remnants of fusion crust rim part of the section. Microprobe analyses show much of the olivine near Mg2SiO4 in composition, but with individual grains ranging up to Fa51; a little Mg-rich pyroxene is present. The matrix appears to consist largely of iron-rich olivine. The meteorite is classified as a C3 chondrite of the Ornans subtype.

Data from:
  MB79
  Table 2
  Line 326:
Origin or pseudonym:Northern Ice Patch
Mass (g):4.8
Class:CO3
Weathering grade:B/C
Fayalite (mol%):1-51
Ferrosilite (mol%):1-2
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 17(3) (1994), JSC, Houston
Published in Meteoritical Bulletin, no. 79, MAPS 31, A161-A174 (1996)
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Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (76° 11'S, 157° 10'E)
     Recommended::   (76° 2' 57"S, 156° 20' 7"E)
Note: the NHM and MetBase coordinates are 26.8 km apart

Statistics:
     This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)
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