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| Elephant Moraine 87507 | |||||||||||||||||||||||||
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| Basic information | Name: Elephant Moraine 87507 This is an OFFICIAL meteorite name. Abbreviation: EET 87507 Observed fall: No Year found: 1987 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  36.2 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 209 approved meteorites classified as CK5. [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.: EET87507; 87508; 87514; 87519; 87525; 87526; 87527; 87529 Location: Elephant Moraine Field No.: 4331; 4345; 5079; 5032; 4313; 4183; 2205; 4179 Weight (g): 36.2; 13.4; 33.6; 23.2; 10.3; 88.2; 5.8; 35.7 Dimensions (cm): 3.5x3x2; 3.2x2x1; 3x3x2; 2.7x1.7x1.5; 5x4x3; 2.7x1.5x1; 4x3x2 Meteorite Type: C4 Chondrite
Macroscopic Description: René Martinez, Carol Schwarz and Roberta Score All of these specimens have weathered and fractured patchy fusion crust with salt present in some cases. Interiors are fine-grained and light to dark gray. Dark inclusions, up to 1.5 mm, are plentiful. A 5 mm spherical black aphanitic inclusion was found in EET87507.
Thin Section (87507,5; 81508,2; 87514,4; 87119,2; 87525,2; 87526,8; 87127,2; 87529,4) Description: Brian Mason The section of EET87526 shows an aggregate of small (0.01-0.02 mm) olivine grains and a little opaque material, with sparse chondrules up to 1.5 mm across. Fusion crust, 0.6 mm thick, borders part of the section. Olivine composition is Fa29; a little pyroxene, Wo1Fs24, and plagioclase, An49, are present. The opaque material is mainly magnetite with a little pentlandite. This is a C4 chondrite. The sections of EET87507 and 87529 are so similar to EET87526 in textures and mineral compositions that the meteorites can be confidently paired. EET87508, 87514, 87519, 87525, and 87527 also appear to belong to this group of C4 chondrites. These five were examined in thin section but were not analyzed by electron microprobe. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 1681: |
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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 44248 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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