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| Elephant Moraine 83334 | |||||||||||||||||||||||||||||
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| Basic information | Name: Elephant Moraine 83334 This is an OFFICIAL meteorite name. Abbreviation: EET 83334 Observed fall: No Year found: 1983 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  2.5 g | ||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 28 approved meteorites classified as CM1. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 1), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||||||
| Writeup |
Writeup from AMN 10(2):
Sample No.: EET83334 Location: Elephant Moraine Weight (g): 2.5 Field No.: 2706 Dimensions (cm): 1.5 x 1.5 x 1 Meteorite Type: C2 Chondrite
Macroscopic Description: Roberta Score A small amount of fusion crust remains on this otherwise black, massive stone.
Thin Section (,4) Description: Brian Mason The section shows a few chondrules (up to 0.9 mm across) and numerous small mineral grains in an opaque matrix. The chondrules and mineral grains consist almost entirely of pale green weakly birefringent serpentinous material. Trace amounts of nickel-iron are present as minute grains. Microprobe analyses show serpentine of variable composition, averaging SiO2 39.6, Al2O3 3.3, FeO 15.3, MgO 27.9%; some small grains of calcite and dolomite were found. The meteorite is a C2 carbonaceous chondrite; the pervasive serpentinization appears to distinguish it from other Elephant Moraine C2 chondrites. | ||||||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 1594: |
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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 43857 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||||||
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