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Allan Hills A76002
Basic information Name: Allan Hills A76002
     This is an OFFICIAL meteorite name.
Abbreviation: ALHA76002
This meteorite may also be called Allan Hills 76002 (ALH 76002) in publications.

Observed fall: No
Year found: 1976 or 1977
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1510 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 1(3)  (1978)  Iron-coarsest octahedrite-1A
AMN 2(1)  (1979)  Iron
Meteoritical Bulletin:  MB 56  (1979)  Iron
Antarctic Meteorite Newsletter:  AMN 4(1)  (1981)  Iron-IA or Og
AMN 7(1)  (1984)  IA
Meteoritical Bulletin:  MB 76  (1994)  IA
NHM Catalogue:  5th Edition  (2000)  IAB
NIPR Catalogue:  2000 Edition  (2000)  IA-coarse octahedrite
MetBase:  v. 7.1  (2006)  IAB-MG
Recommended:  Iron, IAB-MG    [explanation]

This is 1 of 86 approved meteorites classified as Iron, IAB-MG.   [show all]
Search for other: IAB complex irons, Metal-rich meteorites, and Iron meteorites
Writeuphelp
Writeup from MB 56:
Warning: the following text was scanned and may contain character recognition errors. Refer to the original to be sure of accuracy.

DISCOVERY OF THE ALLAN HILLS A76002, ANTARCTICA, IRON METEORITE

Name: ALLAN HILLS A76002

Place of find: West of Allan Nunatak on the edge of the Polar plateau, Victoria Land, Antarctica.

6045'00"S., 159°22'34"E.

Date of find: January 18, 1977.

Class and type: Iron. Coarsest octahedrite. Ni = 6.36%, Ga = 93 ppm, Ir = 2.3 ppm.

Number of individual

specimens:

1

Total weight: 1510 g

Circumstances of find: Sighted from a helicopter which was taxiing 10-15 m above the bare ice, during the 1976-1977 season of the U.S: Japan Joint Antarctic Expedition, 80 m from the find site of the Allan Hills A76001 stone.

Source: . Yanai, 1978. First meteorites found in Victoria Land, Antarctica, December 1976 and January 1977. Mem. Nat. Inst. Polar Res., Special Issue No. 8, 51-69.

Note: Also known as Allan Nunatak No. 2 and as Allan Hills No. 2. Allan Hills A76002 is the name approved by the Nomenclature Committee of the Meteoritical Society.

See also: A. Cassidy, E. Olsen and K. Yanai, 1977. Antarctica: a deep-freeze storehouse for meteorites. Science 198, 727-731, where the coordinates of the find site are given as 76°39'27"S., 159°33'16"E., and E. Olsen et al., 1978. Eleven new meteorites from Antarctica, 1976-1977. Meteoritics 13, 209-225.


[From Antarctic Meteorite Newsletter 4(1):]

Sample No.: ALHA76002

Location: Allan Hills

Field No.:

Weight (gms): 307.0

Meteorite Type: Iron-Group IA or Ogg

 

Physical Description:

A thin black fusion crust covers the exterior of this specimen. The regmaglypts have a minor amount of iron oxide staining in the depressions.

 

Dimensions: ~6.8 x 3.7 x 3.7 cm.

 

Petrographic Description:

This is the same sample as Allan Hills #2 as described in Olsen, et al., 1978. Eleven new meteorites from Antarctica, 1976-1977, Meteoritics, Vol. 13, No. 2, pp 209-225.

Data from:
  MB76
  Table 2
  Line 2:
Origin or pseudonym:Main icefield
Mass (g):1510
Class:IA
Comments:76002 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 1(3) (1978), JSC, Houston
Published in Meteoritical Bulletin, no. 56, Meteoritics 14, 161-175 (1979)
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° 43'S, 159° 40'E)

Statistics:
     This is 1 of 33933 approved meteorites from Antarctica (plus 6798 unapproved names)
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Synonyms: ALHA762 (Added by JNG 2/23/06)
Allan Hills No. 2 (Added by JNG 2/23/06)
Allan Nunatak No. 2 (Added by JNG 2/23/06)

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