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| Allan Hills A79038 | |||||||||||||||||||||
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| Basic information | Name: Allan Hills A79038 This is an OFFICIAL meteorite name. Abbreviation: ALHA79038 This meteorite may also be called Allan Hills 79038 (ALH 79038) in publications. Observed fall: No Year found: 1979 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  49.7 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 10264 approved meteorites (plus 18 unapproved names) classified as H5. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||
| Writeup |
Writeup from AMN 4(1):
Sample No.: ALHA79038 Location: Allan Hills Field No.: 1158 Weight (gms): 49.6 Meteorite Type: H5 Chondrite
Physical Description: Roberta Score Patches of black fusion crust appear on one surface. The rest of the stone has been weathered to a deep reddish-brown color. No unweathered material was exposed when the sample was chipped. Dimensions: 5 x 3.5 x 1 cm.
Petrographic Description: Brian Mason Chondritic structure is well developed, with chondrules ranging from 0.3-1.2 mm across. They are set in a granular matrix consisting largely of olivine and pyroxene, with minor amounts of nickel-iron and troilite. Fusion crust, up to 0.5 mm thick, rims one edge of the section. Weathering is extensive, with brown limonitic staining throughout the section. Microprobe analyses give the following compositions: olivine, Fa17; pyroxene, Fs15. The meteorite is classified as an H5 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 475: |
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| References: | Published in Antarctic Meteorite Newsletter 4(1) (1981), JSC, Houston 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 40753 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||
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