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 A79002
Basic information Name: Allan Hills A79002
     This is an OFFICIAL meteorite name.
Abbreviation: ALHA79002
This meteorite may also be called Allan Hills 79002 (ALH 79002) in publications.

Observed fall: No
Year found: 1979
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 223 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 4(1)  (1981)  H6
Meteoritical Bulletin:  MB 76  (1994)  H6
NHM Catalogue:  5th Edition  (2000)  H6
MetBase:  v. 7.1  (2006)  H6
Recommended:  H6    [explanation]

This is 1 of 5857 approved meteorites (plus 5 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeuphelp
Writeup from AMN 4(1):

Sample No.: ALHA79002

Location: Allan Hills

Field No.: 1172

Weight (gms): 222.8

Meteorite Type: H6 Chondrite

 

Physical Description: Roberta Score

A reddish-brown remnant fusion crust covers the entire stone with the exception of one small patch of black fusion crust. Several cracks penetrate the interior of the stone. No unweathered material was exposed by chipping. Dimensions: 8 x 5 x 4.5 cm.

 

Petrographic Description: Brian Mason

Chondrules are sparse and poorly defined, tending to merge with the granular groundmass, which consists largely of olivine and pyroxene, with minor amounts of nickel-iron, plagioclase, and troilite. Weathering is extensive, with veins and patches of brown limonite throughout the section. Microprobe analyses gave the following mineral compositions: olivine, Fa18; pyroxene, Fs16; plagioclase, An13. The meteorite is classified as an H6 chondrite.

Data from:
  MB76
  Table 2
  Line 440:
Origin or pseudonym:Main icefield
Mass (g):222.8
Class:H6
Weathering grade:C
Fayalite (mol%):16
Ferrosilite (mol%):18
Comments:26Al=34±2
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 4(1) (1981), 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° 42' 11"S, 159° 23' 30"E)
Note: the NHM and MetBase coordinates are 7.2 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