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Elephant Moraine 90066
Basic information Name: Elephant Moraine 90066
     This is an OFFICIAL meteorite name.
Abbreviation: EET 90066
Observed fall: No
Year found: 1990
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 9.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 15(2)  (1992)  L3
Meteoritical Bulletin:  MB 76  (1994)  L3.3
NHM Catalogue:  5th Edition  (2000)  L3.3
MetBase:  v. 7.1  (2006)  L3.3
Recommended:  L3.3    [explanation]

This is 1 of 18 approved meteorites classified as L3.3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Writeuphelp
Writeup from AMN 15(2):

Sample No.: EET90066

Location: Elephant Moraine

Field Number: 6926

Dimensions (cm): 2.1 x 1.5 x 1.2

Weight (g): 9.8

Meteorite Type: L3 chondrite

 

Macroscopic Description: Cecilia Satterwhite

Most of the exterior is covered with fusion crust containing several oxidation haloes. Abundant inclusions/chondrules are present in the dark brown to black matrix. Areas of heavy oxidation exist.

 

Thin Section (,2) Description: Brian Mason

The section shows a close-packed aggregate of chondrules and chondrule fragments, up to 2.4 mm across, in a black matrix which contains a small amount of nickel-iron and troilite. A variety of chondrule types is present, mainly granular and porphyritic olivine and olivine-pyroxene with some radiating and cryptocrystalline pyroxene. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa 1-28 , mean Fa10 (CV FeO is 76); pyroxene, Fs3-18. The meteorite is classified as an L3 chondrite (estimated L3.3).

 

Data from:
  MB76
  Table 2
  Line 2099:
Origin or pseudonym:Texas Bowl
Mass (g):9.8
Class:L3.3
Weathering grade:B
Fayalite (mol%):1-28
Ferrosilite (mol%):3-18
Catalogs:
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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:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (76° 11'S, 157° 10'E)
     Recommended::   (76° 16' 38"S, 156° 27' 41"E)
Note: the NHM and MetBase coordinates are 21.5 km apart

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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