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Elephant Moraine 87735
Basic information Name: Elephant Moraine 87735
     This is an OFFICIAL meteorite name.
Abbreviation: EET 87735
Observed fall: No
Year found: 1987
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 4.2 g
Antarctic Meteorite Newsletter:  AMN 12(3)  (1989)  L3
Meteoritical Bulletin:  MB 76  (1994)  L3.4
NHM Catalogue:  5th Edition  (2000)  L3.4
MetBase:  v. 7.1  (2006)  L3.4
Recommended:  L3.4    [explanation]

This is 1 of 51 approved meteorites classified as L3.4.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Writeup from AMN 12(3):

Sample No.: EET87735

Location: Elephant Moraine

Dimensions (cm): 2x1.5x4

Field Number: 4691

Weight (g): 4.2

Meteorite Type: L3 chondrite


Macroscopic Description: Carol Schwarz

Fractured black fusion crust covers 90% of this unequilibrated chondrite. Numerous inclusions < 1mm in size are visible in the dark matrix.


Thin Section (,2) Description: Brian Mason

The section shows abundant chondrules and chondrule fragments, up to 1.8 mm across, in a black matrix containing some troilite and a little nickel-iron, which are concentrated as rims to the chondrules. A variety of chondrule types is present, including granular and porphyritic olivine and olivine-pyroxene, barred olivine, and fine-grained radiating pyroxene. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa1-25, mean Fa12 (CV FeO is 60); pyroxene, Fs2-22. The small amount of nickel-iron suggests L group, and the variability of olivine and pyroxene compositions type 3; hence the meteorite is classified as an L3 chondrite (estimated L3.4).

Data from:
  Table 2
  Line 1908:
Origin or pseudonym:Texas Bowl
Mass (g):4.2
Weathering grade:B
Fayalite (mol%):1-25
Ferrosilite (mol%):2-22
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References: Published in Antarctic Meteorite Newsletter 12(3) (1989), 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° 16' 25"S, 156° 28' 34"E)
Note: the NHM and MetBase coordinates are 20.9 km apart

     This is 1 of 43856 approved meteorites from Antarctica (plus 3802 unapproved names)
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