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Elephant Moraine 92128
Basic information Name: Elephant Moraine 92128
     This is an OFFICIAL meteorite name.
Abbreviation: EET 92128
Observed fall: No
Year found: 1992
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1.2 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 17(3)  (1994)  CV3
Meteoritical Bulletin:  MB 79  (1996)  CV3
NHM Catalogue:  5th Edition  (2000)  CV3
MetBase:  v. 7.1  (2006)  CV3
Recommended:  CV3    [explanation]

This is 1 of 493 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Writeuphelp
Writeup from AMN 17(3):
Sample No.: EET92128
Location: Elephant Moraine
Dimensions (cm): 1.3 x 0.6 x 0.6
Weight (g): 1.2
Meteorite Type: CV3 chondrite

Macroscopic Description: Cecilia Satterwhite
Shiny black and frothy fusion crust covers approximately half of this meteorite. The interior matrix is brown/black; metal is present. Oxidation is evident in areas. Minor amounts of evaporite deposit were noted.

Thin Section (,2) Description: Brian Mason
The section shows a variety of chondrules and chondrule fragments (up to 1.2 mm across), and one large clast of granular olivine and pyroxene (maximum dimension 3.6 mm) in a black matrix which contains small amounts of nickel-iron and troilite, mostly on chondrule rims. Part of the section is rimmed by fusion crust. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa7-15; pyroxene, Fs3-21. In the clast, olivine composition is Fa16-18, pyroxene Wo10Fs15. The matrix appears to consist largely of fine-grained iron-rich olivine admixed with carbonaceous matter. The meteorite is tentatively classified as a C3 chondrite of the Vigarano subtype.

Data from:
  MB79
  Table 2
  Line 328:
Origin or pseudonym:Northern Ice Patch
Mass (g):1.2
Class:CV3
Weathering grade:C
Fayalite (mol%):7-15
Ferrosilite (mol%):3-21
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' 45"S, 156° 19' 35"E)
Note: the NHM and MetBase coordinates are 27.2 km apart

Statistics:
     This is 1 of 38940 approved meteorites from Antarctica (plus 5051 unapproved names)
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