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Allan Hills A80107
Basic information Name: Allan Hills A80107
     This is an OFFICIAL meteorite name.
Abbreviation: ALHA80107
This meteorite may also be called Allan Hills 80107 (ALH 80107) in publications.

Observed fall: No
Year found: 1980
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 177.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 5(1)  (1982)  L6
Meteoritical Bulletin:  MB 76  (1994)  L6
NHM Catalogue:  5th Edition  (2000)  L6
MetBase:  v. 7.1  (2006)  L6
Recommended:  L6    [explanation]

This is 1 of 11000 approved meteorites (plus 6 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeuphelp
Writeup from AMN 5(1):

Sample No.: ALHA80107

Location: Allan Hills

Field No.: 1060

Weight (gms): 177.8

Meteorite Type: L6 Chondrite

 

Physical Description: Carol Schwarz

This specimen consists of six pieces which appear similar to ALHA80101. Only one has a dull back fusion crust present. The other pieces are rough and weathered to a reddish-brown color. Several show severe weathering along fractures. Dimensions: Range from 6 x 5 x 2.5 cm to 1.3 x 1 x .7 cm

 

Petrographic Description: Brian Mason

Chondritic structure is barely perceptible, the sparse chondrules merging with the granular matrix, which consists of olivine and pyroxene, with minor amounts of plagioclase, nickel-iron, and troilite. A minor amount of brown limonitic staining is present around the nickel-iron grains. Microprobe analyses gave the following compositions: olivine, Fa24 orthopyroxene, Fs20; plagioclase, An11. The meteorite is classified as an L6 chondrite.

Data from:
  MB76
  Table 2
  Line 498:
Origin or pseudonym:Main icefield
Mass (g):177.8
Class:L6
Weathering grade:B
Fayalite (mol%):24
Ferrosilite (mol%):20
Comments:26Al=59±3; 80101 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 5(1) (1982), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (76° 43'S, 159° 40'E)
     Recommended::   (76° 46' 16"S, 159° 17' 14"E)
Note: the NHM and MetBase coordinates are 11.5 km apart

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