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| Elephant Moraine 87735 | |||||||||||||||||||||
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| Basic information | Name: Elephant Moraine 87735 This is an OFFICIAL meteorite name. Abbreviation: EET 87735 Observed fall: No Year found: 1987 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  4.2 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 51 approved meteorites classified as L3.4. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Writeup |
Writeup from AMN 12(3):
Sample No.: EET87735 Location: Elephant Moraine Dimensions (cm): 2x1.5x4 Field Number: 4691 Weight (g): 4.2 Meteorite Type: L3 chondrite
Macroscopic Description: Carol Schwarz Fractured black fusion crust covers 90% of this unequilibrated chondrite. Numerous inclusions < 1mm in size are visible in the dark matrix.
Thin Section (,2) Description: Brian Mason The section shows abundant chondrules and chondrule fragments, up to 1.8 mm across, in a black matrix containing some troilite and a little nickel-iron, which are concentrated as rims to the chondrules. A variety of chondrule types is present, including granular and porphyritic olivine and olivine-pyroxene, barred olivine, and fine-grained radiating pyroxene. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa1-25, mean Fa12 (CV FeO is 60); pyroxene, Fs2-22. The small amount of nickel-iron suggests L group, and the variability of olivine and pyroxene compositions type 3; hence the meteorite is classified as an L3 chondrite (estimated L3.4). | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 1908: |
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| References: | Published in Antarctic Meteorite Newsletter 12(3) (1989), 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 43856 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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