Meteoritical Bulletin: Entry for Queen Alexandra Range 94570

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Queen Alexandra Range 94570

Basic information

Name: Queen Alexandra Range 94570
This is an OFFICIAL meteorite name.
Abbreviation: QUE 94570
Observed fall: No
Year found: 1994
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 57.2 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 19(1)	(1996)	C4
Meteoritical Bulletin:	MB 79	(1996)	C4
NHM Catalogue:	5th Edition	(2000)	C4
MetBase:	v. 7.1	(2006)	L4-an
Antarctic Meteorite Newsletter:	AMN 33(1)	(2010)	L4-anom
Recommended:			L4-an [explanation]

This is the only approved meteorite classified as L4-an.
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Field number: 10202

Writeup

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Writeup from AMN 19(1):

Sample No.:	QUE94570
Location:	Queen Alexandra Range
Dimensions (cm):	5.0 x 3.6 x 1.8
Weight (g):	57.2
Meteorite Type:	C4 chondrite

Macroscopic Description: Roberta Score
Thin, extremely weathered, iridescent fusion crust remains on half of this angular specimen. Black weathered material makes up the interior. Small, silver-colored blebs of sulfides are scattered across the broken face. Evaporite deposit is present.

Thin Section (,2) Description: Brian Mason
The section shows a close-packed aggregate of chondrules, up to 2.4 mm across, in a small amount of dark matrix. About 20% of the nickel-iron and troilite is present, much of it rimming the chondrules. Weathering is extensive, with veins of brown limonite throughout the section. Microprobe analyses show olivine and pyroxene of fairly uniform composition: olivine, Fa_10-13, Fs_9-12. This meteorite is very similar to Coolidge (Meteoritics, v. 30, p. 20, 1995), and is tentatively classified as a C4 chondrite.

Data from:
  MB79
  Table 2
  Line 1675:

Origin or pseudonym:	Foggy Bottom Moraine
Mass (g):	57.2
Class:	C4
Weathering grade:	B/Ce
Fayalite (mol%):	10-13
Ferrosilite (mol%):	9-12

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 19(1) (1996), JSC, Houston
Published in Meteoritical Bulletin, no. 79, MAPS 31, A161-A174 (1996)

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Geography:

Antarctica

Antarctica

Coordinates:
Catalogue of Meteorites:	(84°S, 168°E)
Recommended::	(84° 35' 36"S, 162° 22' 37"E)

Note: the NHM and recommended coordinates are 90.9 km apart

Statistics:
This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names)

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Revision
history:

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