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Allan Hills 83017
Basic information Name: Allan Hills 83017
     This is an OFFICIAL meteorite name.
Abbreviation: ALH 83017
Observed fall: No
Year found: 1983
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 0.6 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 10(2)  (1987)  L3
Meteoritical Bulletin:  MB 76  (1994)  L3.5
NHM Catalogue:  5th Edition  (2000)  L3.5
MetBase:  v. 7.1  (2006)  L3.5
Recommended:  L3.5    [explanation]

This is 1 of 95 approved meteorites classified as L3.5.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Writeuphelp
Writeup from AMN 10(2):

Sample No.: ALH83017

Location: Allan Hills

Weight (g): 0.6

Field No.: 2127

Dimensions (cm): 1 x 0.8 x 0.3 cm

Meteorite Type: L3 Chondrite

 

Macroscopic Description: Carol Schwarz

This tiny specimen is totally covered with fusion crust which is bubbly on one surface. The entire chip was used to make a thin section.

 

Thin Section (,1) Description: Brian Mason

Chondrules and chondrule fragments are abundant, ranging up to 1.8 mm across; most are granular or porphyritic olivine and olivine-pyroxene, but barred olivine and fine-grained pyroxene chondrules are also present. Nickel-iron and sulfide are present in minor amounts. The section is completely surrounded by fusion crust. Microprobe analyses show olivine ranging in composition from Fa0.8 to Fa28, with a mean of Fa19 (CV FeO is 50); pyroxene composition ranges from Fs4 to Fs20. The meteorite is an L3 chondrite (probably L3.5).

Data from:
  MB76
  Table 2
  Line 900:
Origin or pseudonym:Middle Western
Mass (g):0.6
Class:L3.5
Fayalite (mol%):0.8-28
Ferrosilite (mol%):4-20
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 10(2) (1987), 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° 49' 20"S, 158° 12' 22"E)
Note: the NHM and MetBase coordinates are 39.1 km apart

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