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Elephant Moraine 83226 | |||||||||||||||||||||||||
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Basic information | Name: Elephant Moraine 83226 This is an OFFICIAL meteorite name. Abbreviation: EET 83226 Observed fall: No Year found: 1983 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: ![]() | ||||||||||||||||||||||||
Classification history: |
This is 1 of 25 approved meteorites classified as C2-ung. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and Ungrouped chondrites | ||||||||||||||||||||||||
Writeup![]() |
Writeup from AMN 8(1):
Sample No.: EET83226 Location: Elephant Moraine Weight (g): 33.1 Field No.: 1332 Dimensions (cm): 4 x 2.5 x 3 Meteorite Type: C2 Chondrite
Macroscopic Description: Roberta Score No fusion crust remains on this angular carbonaceous chondrite. The exterior has a granular texture with chondrules and inclusions abundant. Interior surfaces are blackish-brown in color whereas the exterior surfaces are black.
Thin Section (,5) Description: Brian Mason The section shows abundant small chondrules, averaging about 0.3 mm in diameter, and numerous enclaves and mineral grains set in a moderate amount of dark brown to black opaque matrix. Chondrule types include granular and barred olivine and pale brown partly devitrified glass. Accessory amounts of finely dispersed nickel-iron and sulfide are present. Microprobe analyses show that much of the olivine is of forsteritic composition, but occasional iron-rich grains are present (Fa0.5 - Fa69, mean Fa12). Pyroxene grains are rare; composition range is Fs0.6 - Fs10. The meteorite is classed as a C2 chondrite. | ||||||||||||||||||||||||
Data from: MB76 Table 2 Line 1491: |
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References: | Published in Antarctic Meteorite Newsletter 8(1) (1985), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography:![]() |
Statistics: This is 1 of 43332 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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