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Elephant Moraine 92027
Basic information Name: Elephant Moraine 92027
     This is an OFFICIAL meteorite name.
Abbreviation: EET 92027
Observed fall: No
Year found: 1992
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 16.3 g
Antarctic Meteorite Newsletter:  AMN 17(1)  (1994)  Eucrite-br
Meteoritical Bulletin:  MB 79  (1996)  Eucrite-br
NHM Catalogue:  5th Edition  (2000)  Eucrite-br
MetBase:  v. 7.1  (2006)  Eucrite-mmict
Recommended:  Eucrite-br    [explanation]

This is 1 of 218 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeup from AMN 17(1):

Sample No.: EET92027

Location: Elephant Moraine

Dimensions (cm): 3.0 x 2.0 x 1.5

Weight (g): 16.3

Meteorite Type: Eucrite (brecciated)


Macroscopic Description: Carol Schwarz

About 30% of the exterior of EET92027 is covered with shiny black fusion crust. The interior appears grayish in color and fine-grained. No inclusions are obvious. Weathering is minor.


Thin Section (,2) Description: Brian Mason

The section shows a brecciated texture, with clasts up to 3 mm and pyroxene and plagioclase grains up to 0.5 mm in a comminuted groundmass of these minerals. Most of the clasts are fine-grained (average grain size 0.02 mm) aggregates of pyroxene and plagioclase. The pyroxene is pigeonite of fairly uniform composition, Wo11Fs44; plagioclase is An84-92; a silica polymorph, probably tridymite, is present in small amounts. The meteorite is a monomict eucrite (brecciated).


Data from:
  Table 2
  Line 227:
Origin or pseudonym:Northern Ice Patch
Mass (g):16.3
Class:Eu "br"
Weathering grade:A
Ferrosilite (mol%):39-46
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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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     Catalogue of Meteorites:   (76° 11'S, 157° 10'E)
     Recommended::   (76° 3' 8"S, 156° 15' 41"E)
Note: the NHM and MetBase coordinates are 28.3 km apart

     This is 1 of 43840 approved meteorites from Antarctica (plus 3802 unapproved names)
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