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| Allan Hills A76009 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Allan Hills A76009 This is an OFFICIAL meteorite name. Abbreviation: ALHA76009 This meteorite may also be called Allan Hills 76009 (ALH 76009) in publications. Observed fall: No Year found: 1976 or 1977 Country: Antarctica [Collected jointly by ANSMET (US) and NIPR (Japan)] Mass:  407 kg | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 12281 approved meteorites (plus 8 unapproved names) classified as L6. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Writeup |
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 A76009, ANTARCTICA, STONY METEORITE Name: ALLAN HILLS A76009 Place of find: West of Allan Nunatak on the edge of the Polar plateau, Victoria Land, Antarctica. 76°42'26"S., 159°07'43"E. Date of find: January 20, 1977. Class and type: Stone. Olivine-hypersthene chondrite (L6). Olivine Fa24.1. Number of individual specimens: 33 Total weight: 407 kg Circumstances of find: Found during a helicopter search over an area of bare ice during the 1976-1977 season of the U.S.-Japan 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. 9 and as Allan Hills No. 9. Allan Hills A76009 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°43'14"S., 159°17'39"E., and E. Olsen etal., 1978. Eleven new meteorites from Antarctica, 1976-1977. Meteoritics 13, 209-225. [From Antarctic Meteorite Newsletter 4(1):] Sample No.: ALHA76009 Location: Allan Hills Field No.: Weight (gms): 3950.5 Meteorite Type: L6 Chondrite
Physical Description: Stone possesses remnants of a black fusion crust (~1 mm thick). Much of the crust is fractured in a polygonal pattern. The specimen is fractured. One large, severely weathered fracture runs through the meteorite. Dimensions: 18 x 13 x 7.6 cm.
Petrographic Description: This meteorite described as Allan Hills #9 in Olsen et al., 1978. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 9: |
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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:
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Statistics: This is 1 of 43840 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Synonyms: |
ALHA769 (Added by JNG 2/23/06) Allan Hills No. 9 (Added by JNG 2/23/06) Allan Nunatak No. 9 (Added by JNG 2/23/06) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||