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Elephant Moraine 87522 | |||||||||||||||||||||||||
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Basic information | Name: Elephant Moraine 87522 This is an OFFICIAL meteorite name. Abbreviation: EET 87522 Observed fall: No Year found: 1987 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 68.6 g | ||||||||||||||||||||||||
Classification history: |
This is 1 of 635 approved meteorites classified as CM2. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||
Writeup |
Writeup from AMN 11(2):
Sample No.: EET87522 Location: Elephant Moraine Weight (g): 68.6 Field No.: 4468 Dimensions (cm): 5 x 4 x 3 Meteorite Type: C2 Chondrite
Macroscopic Description: Roberta Score Dull, black fusion crust covers about 40% of this carbonaceous chondrite fragment. Areas devoid of fusion crust are black with <1 mm sized irregular inclusions and chondrules. A 1 cm thick weathering rind was exposed along one surface. A minute amount of salt deposit is present in the interior.
Thin Section (,10) Description: Brian Mason The section has a black matrix with numerous small (less than 0.1 mm) mineral grains and sparse chondrules (up to 0.6 mm across). Microprobe analyses show olivine generally close to Mg2SiO4 in composition, but also a few Fe-rich grains; pyroxene is less abundant than olivine, and most grains have compositions near MgSiO3. The meteorite is a C2 chondrite. | ||||||||||||||||||||||||
Data from: MB76 Table 2 Line 1696: |
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References: | Published in Antarctic Meteorite Newsletter 11(2) (1988), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography: |
Statistics: This is 1 of 44400 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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Revision history: |
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