Meteoritical Bulletin: Entry for Elephant Moraine 99437

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Elephant Moraine 99437

Basic information

Name: Elephant Moraine 99437
This is an OFFICIAL meteorite name.
Abbreviation: EET 99437
Observed fall: No
Year found: 1999
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 6 g

Classification
history:

NHM Catalogue:	5th Edition	(2000)	CM2
Antarctic Meteorite Newsletter:	AMN 24(1)	(2001)	CM2
Meteoritical Bulletin:	MB 85	(2001)	CM2
MetBase:	v. 7.1	(2006)	CM2
Recommended:			CM2 [explanation]

This is 1 of 544 approved meteorites classified as CM2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites

Writeup

Writeup from AMN 24(1):

Sample No.:	EET 99437
Location:	Elephant Moraine
Field No.:	12329
Dimensions (cm):	1.5x1.5x1.5
Weight (g):	5.997
Meteorite Type:	CM2 Chondrite

Macroscopic Description: Kathleen McBride
The exterior has thick black fusion crust with polygonal fractures on its entire surface. The matrix is black, charcoal-like with an oxidation rind. The meteorite contains white and rust colored chondrules/inclusions, less then 1 mm in size.

Thin Section (, 3) Description: Tim McCoy and Linda Welzenbach
The section consists of small chondrules (rarely up to 1 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa_0-51, with many grains Fa_0-1. A single orthopyroxene is Fs₁. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite

Data from:
  MB85
  Table A1
  Line 57:

Origin or pseudonym:	Main icefield
Mass (g):	6
Class:	CM2
Weathering grade:	Be
Fayalite (mol%):	0-51
Ferrosilite (mol%):	1

Catalogs:

Search for specimens in the Smithsonian Institution collection (U.S.):	Require SI photo
Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 24(1) (2001), JSC, Houston
Published in Meteoritical Bulletin, no. 85, MAPS 36, A293-A322 (2001)

Find references in NASA ADS:
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Photos:

Credit	Photos
Photographs from AMN:
Photograph from unknown source	A photo is in the write-up above
Photos from the Encyclopedia of Meteorites:
Dr Carlton Allen, JSC-KT, NASA

Geography:

Antarctica

Coordinates:
Catalogue of Meteorites:	(76° 11'S, 157° 10'E)
Recommended::	(76° 11'S, 157° 10'E)

Statistics:
This is 1 of 40719 approved meteorites from Antarctica (plus 4494 unapproved names)

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