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Elephant Moraine 82600
Basic information Name: Elephant Moraine 82600
     This is an OFFICIAL meteorite name.
Abbreviation: EET 82600
Observed fall: No
Year found: 1982
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 247 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 6(2)  (1983)  Howardite
AMN 17(1)  (1994)  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 342 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeuphelp
Writeup from AMN 6(2):

Sample No.: EETA82600

Location: Elephant Moraine

Field No.: 2956

Weight (gms): 247.1

Meteorite Type: Howardite

 

Physical Description: Carol Schwarz

Some black pitted fusion crust occurs on one surface of EETA82600. The other surfaces are smooth and gray with small white and dark gray inclusions. Chipping revealed an interior that is gray with an indistinct whitish weathering rind. The inclusions present are small and not very obvious. Dimensions: 7 x 5 x 5 cm

 

Petrographic Description: Brian Mason

The section shows a microbreccia of angular fragments (grains up to 2 mm across) of pyroxene (orthopyroxene and pigeonite) and plagioclase, in a matrix of comminuted pyroxene and plagioclase. Trace amounts of troilite and nickel-iron are present, and rare plagioclase-pigeonite clasts, up to 1.5 mm across. Microprobe analyses show a wide range in pyroxene compositions: Wo1-24, En33-77, Fs22-53; the grains with En >70 indicate the presence of a diogenitic component. Plagioclase shows a considerable range of compositions, An7-21. The meteorite is classed as a howardite and is possibly paired with EETA79006.

[Correction in AMN 7(1):] EET 82600 - Ab7-21

Data from:
  MB76
  Table 2
  Line 1448:
Origin or pseudonym:Main icefield
Mass (g):247.1
Class:Eu "pm"
Weathering grade:Ae
Ferrosilite (mol%):22-53
Comments:79006 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 6(2) (1983), 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' 33"S, 157° 14' 25"E)
Note: the NHM and MetBase coordinates are 12.3 km apart

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