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| Elephant Moraine 87860 | |||||||||||||||||||||||||||||
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| Basic information | Name: Elephant Moraine 87860 This is an OFFICIAL meteorite name. Abbreviation: EET 87860 Observed fall: No Year found: 1987 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  32.8 g | ||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 6 approved meteorites classified as CK5/6. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites | ||||||||||||||||||||||||||||
| Writeup |
Writeup from AMN 11(2):
Sample No.: EET87860 Location: Elephant Moraine Weight (g): 32.8 Field No.: 2261 Dimensions (cm): 3 x 2 x 1.5 Meteorite Type: C5 Chondrite
Macroscopic Description: René Martinez This specimen is light gray and very fine-grained with three principal minerals: a mafic mineral, white plagioclase and sulfide (~5-10%). About 40% of the pebble is covered with fusion crust. No chondrules were visible.
Thin Section (,3) Description: Brian Mason The section shows an aggregate of anhedral olivine grains (0.3-0.6 mm across) and minor plagioclase, with a small amount of finely dispersed opaque material (magnetite and pentlandite). Chondrules, if present, are almost completely integrated with the matrix. Olivine composition is Fa28; pyroxene was not detected; plagioclase composition is quite variable, An21-72. The mineralogy is similar to that of EET87526 and other C4 chondrites, but the texture is much coarser, and the meteorite is tentatively classified as a C5 chondrite. | ||||||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 2033: |
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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:
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Statistics: This is 1 of 43700 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||||||
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