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| Elephant Moraine 83260 | |||||||||||||||||||||||||
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| Basic information | Name: Elephant Moraine 83260 This is an OFFICIAL meteorite name. Abbreviation: EET 83260 Observed fall: No Year found: 1983 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  15.4 g | ||||||||||||||||||||||||
| Classification history: |
This is the only approved meteorite classified as L3.3-3.7. Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 9(2):
Sample No.: EET83260 Location: Elephant Moraine Weight (g): 15.4 Field No.: 2997 Dimensions (cm): 3 x 2 x 2
Meteorite Type: L3 Chondrite Macroscopic Description: René Martinez This specimen retains fusion crust on all sides which is iridescent and fractured in some areas. The interior is very dark gray with abundant small white inclusions. Sample is very coherent.
Thin Section (,3) Description: Brian Mason The section shows a close-packed aggregate of chondrules and chondrule fragments, with some black matrix and minor amounts of troilite and nickel-iron. The chondrules are fairly uniform in size, 0.3-1.2 mm across, and show a variety of types. Considerable weathering is indicated by areas of red-brown limonite throughout the section. Remnants of fusion crust are present. Microprobe analyses give the following compositions: olivine, Fa7-19, mean Fa17 (CV Fe022); pyroxene, Fs5-25. The variability of olivine and pyroxene compositions indicates type 3, and the amount of nickel-iron suggests L group: hence, the meteorite is tentatively classified as an L3 chondrite. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 1523: |
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| References: | Published in Antarctic Meteorite Newsletter 9(2) (1986), 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 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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| Revision history: |
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