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| Allan Hills A76005 | |||||||||||||||||||||||||||||||||
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| 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:  1425 g | ||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 143 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||||||
| 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. |
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| Data from: MB76 Table 2 Line 5: |
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| References: | Published in Meteoritical Bulletin, no. 56, Meteoritics 14, 161-175 (1979) Published in Antarctic Meteorite Newsletter 2(1) (1979), JSC, Houston
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Geography:
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Statistics: This is 1 of 25075 approved meteorites from Antarctica (plus 9773 unapproved names) | ||||||||||||||||||||||||||||||||
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| Synonyms: |
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) | ||||||||||||||||||||||||||||||||