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Elephant Moraine 92005
Basic information Name: Elephant Moraine 92005
     This is an OFFICIAL meteorite name.
Abbreviation: EET 92005
Observed fall: No
Year found: 1992
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 5.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 17(1)  (1994)  C2
Meteoritical Bulletin:  MB 79  (1996)  C2
NHM Catalogue:  5th Edition  (2000)  C2
MetBase:  v. 7.1  (2006)  CM2
Antarctic Meteorite Newsletter:  AMN 31(1)  (2008)  CM2
Recommended:  CM2    [explanation]

This is 1 of 540 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Writeuphelp
Writeup from AMN 17(1):

Sample No.: EET92005; 92007; 92008, 92009, 92010

Location: Elephant Moraine

Dimensions (cm): 2.8 x 2.0 x 1.0; 1.3 x 0.7 x 0.7; 1.7 x 1.3 x 0.8; 0.7 x 0.5 x 0.5; 3 fragments 1 x 0.5 x 0.5 each

Weight (g): 5.4; 0.6; 1.5; 0.2; 1.0

Meteorite Type: C2 chondrite

 

Macrosc ooic Description: Carol Schwarz

EET92005 and 92008 retain some frothy fusion crust; the other specimens have none. The exterior of 92008 has weathered to a dark green color typical for Antarctic carbonaceous chondrites. Its interior is black with rust-colored inclusions. All of the other specimens have dark gray to black colored matrices with numerous weathered, light colored, <1-mm sized inclusions. 92010 consists of three small fragments.

 

Thin Section (EET92005,2; 92007,2; 92008,2; 92009,2; 92010,2) Description: Brian Mason

These sections are so similar that a single description will suffice; the meteorites are probably paired. The sections show a few chondrules, up to 0.9 mm across, irregular aggregates, and small mineral grains in a black matrix. The minerals are almost entirely olivine, near Mg2SiO4 in composition, with a few iron-rich grains. A small amount of pyroxene may be present. The meteorite is a C2 chondrite.

 

Data from:
  MB79
  Table 2
  Line 205:
Origin or pseudonym:Northern Ice Patch
Mass (g):5.4
Class:C2
Weathering grade:B
Fayalite (mol%):1-25
Comments:92005 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 17(1) (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° 1' 59"S, 156° 17' 53"E)
Note: the NHM and MetBase coordinates are 28.7 km apart

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