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Elephant Moraine 83248 | |||||||||||||||||||||
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Basic information | Name: Elephant Moraine 83248 This is an OFFICIAL meteorite name. Abbreviation: EET 83248 Observed fall: No Year found: 1983 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 39.2 g | ||||||||||||||||||||
Classification history: |
This is 1 of 21 approved meteorites classified as H3.5. [show all] Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
Writeup |
Writeup from AMN 9(1):
Sample No.: FET83248 Location: Elephant Moraine Weight (g): 39.2 Field No.: 1364 Dimensions (cm): 3.5 x 3 x 2.5 Meteorite Type: H3 Chondrite
Macroscopic Description: Carol Schwarz Black fusion crust, iridescent on one face, covers all but one side of this smooth specimen. The fracture surface is very dark and iridescent with a few millimeter sized chondrules visible. A few small yellowish-colored chondrules/clasts are visible in the dark matrix that makes up the interior of this meteorite. EET83248 is very coherent.
Thin Section (,3) Description: Brian Mason The section shows a close-packed aggregate of chondrules (0.1-1.2 mm diameter), chondrule fragments, and irregular crystal aggregates, with interstitial nickel-iron and troilite and a small amount of dark fine-grained matrix. Chondrule types include granular and porphyritic olivine and olivine-pyroxene, barred olivine, and fine-grained and radiating pyroxene. Weathering is extensive, with brown limonitic staining throughout the section. Microprobe analyses show olivine ranging in composition from Fa3 to Fa24, with a mean of Fa14 (CV FeO is 45); the pyroxene is clinobronzite ranging in composition from Fs3 to Fs23. These ranges in composition indicate type 3, and the amount of nickel-iron suggests H group; the meteorite is therefore tentatively classed as an H3 chondrite. | ||||||||||||||||||||
Data from: MB76 Table 2 Line 1512: |
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Catalogs: |
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References: | Published in Antarctic Meteorite Newsletter 9(1) (1986), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography: |
Statistics: This is 1 of 44400 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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Revision history: |
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