header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 30 Nov 2019
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Allan Hills A81044
Basic information Name: Allan Hills A81044
     This is an OFFICIAL meteorite name.
Abbreviation: ALHA81044
This meteorite may also be called Allan Hills 81044 (ALH 81044) in publications.

Observed fall: No
Year found: 1981
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 387 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 6(1)  (1983)  H4
Meteoritical Bulletin:  MB 76  (1994)  H4
NHM Catalogue:  5th Edition  (2000)  H4
MetBase:  v. 7.1  (2006)  H4
Recommended:  H4    [explanation]

This is 1 of 5782 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeuphelp
Writeup from AMN 6(1):

Sample No.: ALHA81044

Location: Allan Hills

Field No.: 1125

Weight (gms): 386.8

Meteorite Type: H4 Chondrite

Physical Description: Carol Schwarz

This meteorite is extremely weathered and fractured. No fresh material was exposed by chipping. Dimensions: 8.5 x 6 x 5 cm.

 

Petrographic Description: Brian Mason

Chondrules are abundant, and are set in a granular groundmass of olivine and pyroxene, with minor amounts of nickel-iron and troilite. Some of the pyroxene in chondrules is polysynthetically twinned clinobronzite. Brown limonitic staining pervades the section. Microprobe analyses give the following compositions: olivine, Fa18; pyroxene, Fs16. The meteorite is classified as an H4 chondrite.


See also ALHA81041
Data from:
  MB76
  Table 2
  Line 567:
Origin or pseudonym:Near Western
Mass (g):386.8
Class:H4
Weathering grade:C
Fayalite (mol%):18
Ferrosilite (mol%):16
Comments:26Al=53±2; 81041 pairing group
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 6(1) (1983), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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' 10"S, 158° 45' 54"E)
Note: the NHM and MetBase coordinates are 23.1 km apart

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page