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Elephant Moraine 90519
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:help 5.2 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 15(2)  (1992)  L3
Meteoritical Bulletin:  MB 76  (1994)  L3.6
NHM Catalogue:  5th Edition  (2000)  L3.6
MetBase:  v. 7.1  (2006)  L3.6
Recommended:  L3.6    [explanation]

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)
Writeuphelp
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).

 

Data from:
  MB76
  Table 2
  Line 2550:
Origin or pseudonym:Texas Bowl
Mass (g):5.2
Class:L3.6
Weathering grade:B/Ce
Fayalite (mol%):5-23
Ferrosilite (mol%):5-15
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° 17' 17"S, 156° 25' 56"E)
Note: the NHM and MetBase coordinates are 22.8 km apart

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