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Elephant Moraine 92003
Basic information Name: Elephant Moraine 92003
     This is an OFFICIAL meteorite name.
Abbreviation: EET 92003
Observed fall: No
Year found: 1992
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 66.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 16(2)  (1993)  Eucrite
AMN 17(1)  (1994)  Eucrite-br
Meteoritical Bulletin:  MB 76  (1994)  Eucrite-br
NHM Catalogue:  5th Edition  (2000)  Eucrite-br
MetBase:  v. 7.1  (2006)  Eucrite-mmict
Recommended:  Eucrite-br    [explanation]

This is 1 of 164 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeuphelp
Writeup from AMN 16(2):

Sample No.: EET92003

Location: Elephant Moraine

Dimensions (cm): 5.8 x 3.6 x 2.4

Weight (g): 66.4

Meteorite Type: Monomict Eucrite

 

Macroscopic Description: Cecilia Satterwhite

Two exterior surfaces of this achondrite are covered by shiny, black fusion crust. Areas devoid of fusion crust are cream-colored and have a rough texture. Evaporate deposit is present. The interior matrix is light to medium gray. Inclusions, as large as 1 cm, are present.

 

Thin Section L7) Descrintion: Brian Mason

The section shows a fine-grained (average grain size 0.1 mm) aggregate of pyroxene and plagioclase with a brecciated structure, and a few coarser-grained clasts. The pyroxene is fairly uniform in composition, clustering around Wo13Fs49; plagioclase composition is An86-91. Tridymite is present in small amounts. The meteorite is a monomict eucrite.

 

Data from:
  MB76
  Table 2
  Line 2845:
Origin or pseudonym:Northern Ice Patch
Mass (g):66.4
Class:Eu "br"
Weathering grade:A/Be
Ferrosilite (mol%):46-52
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 16(2) (1993), 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° 3' 16"S, 156° 15' 29"E)
Note: the NHM and MetBase coordinates are 28.3 km apart

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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