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| Elephant Moraine 90519 | |||||||||||||||||||||
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| Basic information | Name: Elephant Moraine 90519 This is an OFFICIAL meteorite name. Abbreviation: EET 90519 Observed fall: No Year found: 1990 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  5.2 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 57 approved meteorites classified as L3.6. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Writeup |
Writeup from AMN 15(2):
Sample No.: EET90519 Location: Elephant Moraine Field Number: 6449 Dimensions (cm): 1.5 x 1.6 x 0.7 Weight (g): 5.2 Meteorite Type: L3 chondrite
Macroscopic Description Robbie Marlow Fractured, dull brown to black fusion crust covers ~90% of the exterior of EET90519. The interior matrix is dark gray with numerous beige and orange inclusions that are <1 mm in dimension. A small amount of evaporite deposit is present.
Thin Section (,2) Description: Brian Mason The section shows a close-packed aggregate of chondrules (up to 1.8mm across), chondrule fragments, and mineral grains in a black matrix containing a little nickel-iron and troilite. Minor weathering is indicated by limonitic staining around metal grains. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa5-23, mean Fa13 (CV FeO is 34); pyroxene, Fs5-15. The variability of olivine and pyroxene indicates type 3, and the small amount of nickel-iron L group, hence the meteorite is classified as an L3 chondrite (estimated L3.6).
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| Data from: MB76 Table 2 Line 2550: |
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| References: | Published in Antarctic Meteorite Newsletter 15(2) (1992), 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 40719 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||
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