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Elephant Moraine 83231
Basic information Name: Elephant Moraine 83231
     This is an OFFICIAL meteorite name.
Abbreviation: EET 83231
Observed fall: No
Year found: 1983
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 66.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 8(1)  (1985)  Eucrite-pmict
Meteoritical Bulletin:  MB 76  (1994)  Eucrite-pmict
NHM Catalogue:  5th Edition  (2000)  Eucrite-pmict
MetBase:  v. 7.1  (2006)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 348 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeuphelp
Writeup from AMN 8(1):

Sample No.: EET83231

Location: Elephant Moraine

Weight (g): 66.4

Field No.: 1344

Dimensions (cm): 5.5 x 4 x 4.5

Meteorite Type: Polymict Eucrite

 

Macroscopic Description: Roberta Score

This stone is very angular and contains numerous vesicles. No fusion vcust is present. EET83231 looks similar to the other 1983 Elephant Moraine eucrites.

 

Thin Section (,4) Description: Jeremy Delaney

Polymict achondritic breccia containing several fine- and very fine-grained mafic clasts. Numerous orthopyroxene clasts similar to diogenetic pyroxene are present. Mafic clasts vary from coarse-grained subophitic basalts with and without optically zoned pyroxene and feldspar to uncommon glassy clasts with fine crystallites.

Data from:
  MB76
  Table 2
  Line 1496:
Origin or pseudonym:Main icefield
Mass (g):66.4
Class:Eu "pm"
Weathering grade:B
Ferrosilite (mol%):37-51
Comments:79004 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 8(1) (1985), 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' 44"S, 157° 14' 18"E)
Note: the NHM and MetBase coordinates are 12.7 km apart

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