Meteoritical Bulletin: Entry for Allan Hills 94007

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 24 Apr 2024
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Allan Hills 94007

Basic information

Name: Allan Hills 94007
This is an OFFICIAL meteorite name.
Abbreviation: ALH 94007
Observed fall: No
Year found: 1994
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 1.2 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 19(2)	(1996)	L3.4
Meteoritical Bulletin:	MB 82	(1998)	L3.4
NHM Catalogue:	5th Edition	(2000)	L3.4
MetBase:	v. 7.1	(2006)	L3.4
Recommended:			L3.4 [explanation]

This is 1 of 52 approved meteorites classified as L3.4. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Writeup

Writeup from AMN 19(2):

Sample No.:	ALH94007
Location:	Allan Hills
Dimensions (cm):	1.5 x 1.0 x 0.75
Weight (g):	1.24
Meteorite Type:	L3 Chondrite (estimated L3.4)

Macroscopic Description: Kathleen McBride

The exterior surface of this meteorite is weathered brown with thin patches of fusion crust. Fractures penetrate the surface. The interior is brown with heavy oxidation and some metal visible.

Thin Section (,2) Description: Brian Mason

The section shows numerous chondrules (up to 1.8 mm across), chondrule fragments, and mineral grains in a black matrix that contains a small amount of nickel-iron and troilite. The meteorite is considerably weathered, with limonitic staining and patches of brown limonite throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa_7-38, mean Fa₁₇: pyroxene, Fa_1-21.The meteorite is classified as an L3 chondrite (estimated L3.4).

Data from:
  MB82
  Table A1
  Line 7:

Origin or pseudonym:	Main icefield
Mass (g):	1.2
Class:	L3.4
Weathering grade:	C
Fayalite (mol%):	7-38
Ferrosilite (mol%):	1-21

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(2) (1996), JSC, Houston
Published in Meteoritical Bulletin, no. 82, MAPS 33, A221-A240 (1998)

Find references in NASA ADS:
Find references in Google Scholar:

Geography:

Antarctica

Coordinates:
Catalogue of Meteorites:	(76° 43'S, 159° 40'E)
Recommended::	(76° 43'S, 159° 40'E)

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

Proximity search:

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

Direct link to this page