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Elephant Moraine 83232 | |||||||||||||||||||||
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Basic information | Name: Elephant Moraine 83232 This is an OFFICIAL meteorite name. Abbreviation: EET 83232 Observed fall: No Year found: 1983 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: ![]() | ||||||||||||||||||||
Classification history: |
This is 1 of 391 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||
Writeup![]() |
Writeup from AMN 8(1):
Sample No.: EET83232 Location: Elephant Moraine Weight (g): 211.2 Field No.: 2800 Dimensions (cm): 7 x 8 x 4.5 Meteorite Type: Polymict Eucrite
Macroscopic Description: Roberta Score EET83232 looks similar to the other 1983 Elephant Moraine eucrites.
Thin Section (,2) Description: Jeremy Delaney Typical polymict achondrite breccia with a variety of lithic clasts. Pyroxene clasts include pigeonites with micron-scale exsolution lamellae with both clouded and unclouded grains present. Some pyroxene clasts have clear zoning that mimics the irregular clast outlines suggesting that they were metamorphosed after brecciation. Feldspar clasts have shock features and some may be recrystallized. A few feldspar clasts have abundant inclusions of clinopyroxene up to 20 microns in diameter. Mafic clasts vary from coarse to very fine-grained and contain cloudy, exsolved pyroxene. Silica minerals in these clasts appear as both interstitial space filling settings and as coarse lathy crystals that appear to cross-cut the earlier texture. No orthopyroxene was recognized. This specimen is a polymict eucrite similar to EETA79011 and 79004. | ||||||||||||||||||||
Data from: MB76 Table 2 Line 1497: |
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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 43700 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
Proximity search: |