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Elephant Moraine 82611
Basic information Name: Elephant Moraine 82611
     This is an OFFICIAL meteorite name.
Abbreviation: EET 82611
Observed fall: No
Year found: 1982
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 12.6 g
Antarctic Meteorite Newsletter:  AMN 7(2)  (1984)  L4
Meteoritical Bulletin:  MB 76  (1994)  L4
NHM Catalogue:  5th Edition  (2000)  L4
MetBase:  v. 7.1  (2006)  L4
Recommended:  L4    [explanation]

This is 1 of 1715 approved meteorites (plus 4 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeup from AMN 7(2):

Sample No.: EET82611

Location: Elephant Moraine

Field No.: 2987

Weight (gms): 12.6

Meteorite Type: L4 Chondrite

Physical Description: Carol Schwarz

Dull black fusion crust with oxidation halos covers this specimen. Several fractures occur on the fusion crust. The interior is reddish brown to yellowish from weathering. Dimensions: 3.5 x 2 x 1.5 cm


Petrographic Description: Brian Mason

Chondritic structure is well-developed, with chondrules ranging up to 2.7 mm in maximum dimension; a variety of types is present, including barred olivine, porphyritic and granular olivine and olivine-pyroxene, and fine-grained pyroxene. The groundmass consists of fine-grained olivine and pyroxene with larger grains of nickel-iron and troilite. Considerable weathering is indicated by brown limonitic staining throughout the section. Microprobe analyses give the following compositions: olivine, Fa24, pyroxene, Fs21. The meteorite is an L4 chondrite.

Data from:
  Table 2
  Line 1459:
Origin or pseudonym:Main icefield
Mass (g):12.6
Weathering grade:B
Fayalite (mol%):24
Ferrosilite (mol%):21
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References: Published in Antarctic Meteorite Newsletter 7(2) (1984), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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     Catalogue of Meteorites:   (76° 11'S, 157° 10'E)
     Recommended::   (76° 19' 10"S, 157° 16' 53"E)
Note: the NHM and MetBase coordinates are 15.5 km apart

     This is 1 of 40744 approved meteorites from Antarctica (plus 4494 unapproved names)
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