header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 11 Oct 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 A76005
Basic information Name: Allan Hills A76005
     This is an OFFICIAL meteorite name.
Abbreviation: ALHA76005
This meteorite may also be called Allan Hills 76005 (ALH 76005) in publications.

Observed fall: No
Year found: 1976 or 1977
Country: Antarctica [Collected jointly by ANSMET (US) and NIPR (Japan)]
Mass:help 1425 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 2(1)  (1979)  Eucrite
Meteoritical Bulletin:  MB 56  (1979)  Eucrite
Antarctic Meteorite Newsletter:  AMN 4(1)  (1981)  Eucrite-pmict
Meteoritical Bulletin:  MB 76  (1994)  Eucrite-pmict
NHM Catalogue:  5th Edition  (2000)  Eucrite-pmict
NIPR Catalogue:  2000 Edition  (2000)  Eucrite-pmict
MetBase:  v. 7.1  (2006)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 341 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
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 A76005, ANTARCTICA, STONY METEORITE

Name: ALLAN HILLS A76005

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

76° 37'46"S., 159° 15'53"E.

Date of find: January 20, 1977.

Class and type: Stone. Calcium-rich achondrite, eucrite.

Number of individual

specimens: 1

Total weight 1425 g

Circumstances of find: Found during a helicopter search over bare ice in the 1976-1977 season of the U.S.-Japak Joint Antarctic Expedition.

Source: K. 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. 5 and as Allan Hills No. 5. Allan Hills A76005 is the name approved by the Nomenclature Committee of the Meteoritical Society.

See also: W.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°37'02"S., 159°21'46"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.: ALHA76005

Location: Allan Hills

Field No.:

Weight (gms): 317.3

Meteorite Type: Achondrite (Polymict Eucrite)

 

Physical Description:

The fusion crust has been largely weathered from the surface of the sample. In the area where it remains, it is thin (<.5mn) and shiny black. The existing fusion crust displays a radial pattern emanating from a point on the E surface, The interior of the stone is medium gray and contains inclusions that range from whitish-gray to black. There are several small fractures in the stone. A small amount of oxidation is present in the interior of the sample. The sample is approximately 6.6 x 7.8 x 4.3 cm.

 

Petrographic Description:

This is the same sample as Allan Hills #5 described by Olsen, et al, 1978, Meteoritics. Vol. 13,pp. 209-225.

Data from:
  MB76
  Table 2
  Line 5:
Origin or pseudonym:Main icefield
Mass (g):1425
Class:Eu "pm"
Weathering grade:A
Ferrosilite (mol%):37-57
Comments:26Al=89±9; NTL=7±1; 76005 pairing group
Catalogs:
Search for specimens in the Smithsonian Institution collection (U.S.):   
    Require SI photo
Search for this meteorite in the NIPR database (Japan):   
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 2(1) (1979), JSC, Houston
Published in Meteoritical Bulletin, no. 56, Meteoritics 14, 161-175 (1979)
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Peter Marmet   
Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (76° 43'S, 159° 40'E)
     Recommended::   (76° 43'S, 159° 40'E)

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
Proximity search:
Find nearby meteorites: enter search radius (km):
Synonymshelp: ALHA765 (Added by JNG 2/23/06)
Allan Hills No. 5 (Added by JNG 2/23/06)
Allan Nunatak No. 5 (Added by JNG 2/23/06)

Direct link to this page