| MetSoc Home Publications Contacts |
|
||
|
||
| Elephant Moraine 83399 | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic information | Name: Elephant Moraine 83399 This is an OFFICIAL meteorite name. Abbreviation: EET 83399 Observed fall: No Year found: 1983 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  203 g | ||||||||||||||||||||||||
| Classification history: |
This is the only approved meteorite classified as L3.3-3.6. Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 9(1):
Sample No.: EET83399 Location: Elephant Moraine Weight (g): 203.3 Field No.: 2774 Dimensions (cm): 5 x 5 x 4 Meteorite Type: L3 Chondrite
Macroscopic Description: René Martinez Small patches of black, shiny fusion crust remain on this otherwise extensively weathered meteorite.
Thin Section (,3) Description: Brian Mason The section shows numerous chondrules, up to 1.8 mm across. A variety of types is present, including granular and porphyritic olivine and olivine-pyroxene, barred olivine, and cryptocrystalline pyroxene. The matrix consists largely of fine-grained silicates with minor subequal amounts of nickel-iron and troilite. The meteorite is considerably weathered, with brown limonitic staining throughout the section. Micro-probe analyses show olivine ranging in composition, Fa3-26, with a mean of Fa17 (CV FeO is 34); the pyroxene is clinobronzite ranging in composition from Fs6 to Fs25. This range in composition indicates type 3, and the amount of nickel-iron suggests L group. The meteorite is tentatively classified as an L3 chondrite. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 1657: |
|
||||||||||||||||||||||||
| Catalogs: |
| ||||||||||||||||||||||||
| References: | Published in Antarctic Meteorite Newsletter 9(1) (1986), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
| ||||||||||||||||||||||||
Geography:
|
Statistics: This is 1 of 40719 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||||||
| Proximity search: | |||||||||||||||||||||||||