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| Elephant Moraine 92012 | |||||||||||||||||||||
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| Basic information | Name: Elephant Moraine 92012 This is an OFFICIAL meteorite name. Abbreviation: EET 92012 Observed fall: No Year found: 1992 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  2 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 100 approved meteorites classified as LL7. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||
| Writeup |
Writeup from AMN 17(1):
Sample No.: EET92012; 92013; 92016 Location: Elephant Moraine Dimensions (cm): 1.1 x 0.9 x 0.8; 2.0 x 1.5 x 1.4; 2.1 x 1.5 x 1.5 Weight (g): 2.0; 9.9; 10.1 Meteorite Type: LL7 chondrite The exterior surfaces of these specimens are greenish-gray in color. Sulfide grains are visible on the exterior. The medium grained, interior matrices are light to medium gray with numerous light and dark colored mineral grains scattered throughout.
Thin Section (EET92012,2; 92013,2; 92016,2) Description: Brian Mason These sections are so similar that a single description suffices; the meteorites are certainly paired. They show an aggregate of small anhedral olivine and pyroxene grains (grain size 0.05-0.1 mm), with a few coarser aggregates which appear to be vestigial chondrules. Minor amounts of nickel-iron and troilite are present. Microprobe analyses show olivine and pyroxene of uniform composition: olivine, Fa30; orthopyroxene, Wo2Fs24. One grain of diopside, Wo40Fs9, was analyzed. A little plagioclase, An10, is present. The meteorite is classified as an LL7 chondrite.
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| Data from: MB79 Table 2 Line 212: |
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| References: | Published in Antarctic Meteorite Newsletter 17(1) (1994), JSC, Houston Published in Meteoritical Bulletin, no. 79, MAPS 31, A161-A174 (1996)
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Geography:
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Statistics: This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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| Revision history: |
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