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Elephant Moraine 90033
Basic information Name: Elephant Moraine 90033
     This is an OFFICIAL meteorite name.
Abbreviation: EET 90033
Observed fall: No
Year found: 1990
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 3.9 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 14(2)  (1991)  Aubrite
Meteoritical Bulletin:  MB 76  (1994)  Aubrite
NHM Catalogue:  5th Edition  (2000)  Aubrite
MetBase:  v. 7.1  (2006)  Aubrite
Recommended:  Aubrite    [explanation]

This is 1 of 66 approved meteorites classified as Aubrite.   [show all]
Search for other: Achondrites, Aubrites, Enstatite achondrites, and Enstatite-rich meteorites
Writeuphelp
Writeup from AMN 14(2):

Sample No.: EET90033

Location: Elephant Moraine

Field Number: 6527

Dimensions (cm): 2 x 1.4 x 1

Weight (g): 3.9

Meteorite Type: Aubrite

 

Macroscopic Description: Cecilia Satterwhite

Little blebs of fusion crust remain on the exterior of this aubrite. The interior is grayish-white with large enstatite clasts. Some dark inclusions are present. Oxidation is moderate and scattered throughout.

 

Thin Section (,2) Description: Brian Mason

The section has a cataclastic texture, with enstatite clasts up to 3 mm across in a comminuted matrix of this mineral. The clasts show undulose extinction and contain small blebs of diopside. The enstatite is almost pure MgSiO3, with FeO ranging up to 0.5%, and CaO 0.3-0.5%. Diopside composition is Wo45En55. The meteorite is an aubrite.

 

Data from:
  MB76
  Table 2
  Line 2066:
Origin or pseudonym:Texas Bowl
Mass (g):3.9
Class:Aub
Weathering grade:B
Ferrosilite (mol%):0-2
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 14(2) (1991), 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° 17' 10"S, 156° 26' 34"E)
Note: the NHM and MetBase coordinates are 22.4 km apart

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