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| Allan Hills 85114 | |||||||||||||||||||||
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| Basic information | Name: Allan Hills 85114 This is an OFFICIAL meteorite name. Abbreviation: ALH 85114 Observed fall: No Year found: 1985 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  11.4 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 11567 approved meteorites (plus 23 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 10(2):
Sample No.: ALH85114 Location: Allan Hills Weight (g): 11.4 Field No.: 2626 Dimensions (cm): 3 x 2 x 1.5 Meteorite Type: H5 Chondrite with Enclave
Macroscopic Description: Roberta Score ALH85114 is a very weathered chondrite fragment with an unusual feature. A fractured, but coherent, greenish-gray, 0.7 x 0.7 x 0.5 cm, olivine clast remains on the exterior surface. Dull black fusion crust covers 70% of the exterior. The fracture surface that contains the clast is red-brown. The interior of ALH85114 is extensively weathered.
Thin Section (,4) Description: Brian Mason The section shows numerous chondrules, up to 1.5 mm across, in a matrix of fine-grained olivine and pyroxene with minor amounts of troilite and nickel-iron. On one edge is an enclave consisting largely of coarse-grained olivine (crystals up to 1.8 mm long). Some of the crystals appear to be granulated, possibly a shock effect; others are barred, the bars consisting of plagioclase (An11). In the chondritic area mineral compositions are olivine, Fa18; pyroxene, Fs16. Enclave olivine composition is Fa18. The meteorite is an H5 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 1343: |
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| References: | Published in Antarctic Meteorite Newsletter 10(2) (1987), 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 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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| Revision history: |
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