Meteoritical Bulletin: Entry for David Glacier 92300

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David Glacier 92300

Basic information

Name: David Glacier 92300
This is an OFFICIAL meteorite name.
Abbreviation: DAV 92300
Observed fall: No
Year found: 1992
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 26.7 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 16(2)	(1993)	CK4
Meteoritical Bulletin:	MB 76	(1994)	CK4
NHM Catalogue:	5th Edition	(2000)	CK4
MetBase:	v. 7.1	(2006)	CK4
Recommended:			CK4 [explanation]

This is 1 of 128 approved meteorites classified as CK4. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites

Writeup

Writeup from AMN 16(2):

Sample No.: DAV92300

Location: David Glacier

Dimensions (cm): 4.0 x 2.7 x 2.0

Weight (g): 26.7

Meteorite Type: CK4 chondrite

Macroscopic Description: Robbie Marlow

Dull, black fusion crust covers 40% of the exterior of this carbonaceous chondrite. Numerous chondrules of assorted sizes can be seen protruding from the exterior surfaces. Cleaving DAV92300 revealed a medium-gray interior that is friable and fine-grained.

Thin Section (,3) Description: Brian Mason

The section shows an aggregate of small (0.01-0.05 mm) olivine grains and minor opaque material, with a few chondrules up to 0.9 mm across. Olivine composition is Fa32; a little pyroxene, Fs26, and plagioclase, An50, were analyzed. The opaque material is largely magnetite. The meteorite is a C4 chondrite of the Karoonda subtype.

Data from:
  MB76
  Table 2
  Line 1417:

Mass (g):	26.7
Class:	CK4
Weathering grade:	A/B
Fayalite (mol%):	32
Ferrosilite (mol%):	26

Catalogs:

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References:

Published in Antarctic Meteorite Newsletter 16(2) (1993), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)

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Geography:

Antarctica

Coordinates:
Catalogue of Meteorites:	(75° 19'S, 162° 0'E)
Recommended::	(75° 19'S, 162° 0'E)

Statistics:
This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names)

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Revision
history:

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