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Elephant Moraine 83251
Basic information Name: Elephant Moraine 83251
     This is an OFFICIAL meteorite name.
Abbreviation: EET 83251
Observed fall: No
Year found: 1983
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 261 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 393 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeuphelp
Writeup from AMN 8(1):

Sample No.: EET83251

Location: Elephant Moraine

Weight (g): 261.4

Field No.: 2884

Dimensions (cm): 7 x 5.5 x 4

Meteorite Type: Polymict Eucrite

 

Macroscopic Description: Roberta Score

This eucrite is typical of the other 1983, Elephant Moraine eucrites.

 

Thin Section (,3) Description: Jeremy Delaney

This is a nice polymict achondrite containing a wide variety of clast types including pyroxene and plagioclase clasts similar to those in other EET polymict eucrites. The lithic clasts include medium-coarse gabbroic clasts with zoned pyroxene and plagioclase, fine-grained basaltic clasts, glassy (or devitrified) clasts, breccia and recrystallized breccia clasts, pyroxene-rich breccia clasts, pyroxene-rich mafic clasts and 1.5-mm orthopyroxene clasts (a few are as magnesian as En85Wo1-2). One coarse-grained mafic clast in this section contains anhedral feldspar crystals (about 200 microns) with 1-10 micron clinopyroxene inclusions of a type commonly seen only as monomineralic feldspar clasts in Victoria Land achondrites. General texture is similar to EETA79011.

Data from:
  MB76
  Table 2
  Line 1514:
Origin or pseudonym:Main icefield
Mass (g):261.4
Class:Eu "pm"
Weathering grade:B
Ferrosilite (mol%):14-58
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' 10"S, 157° 14' 23"E)
Note: the NHM and MetBase coordinates are 11.6 km apart

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