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O'Malley 015 | |||||||||||||||||||||||||||||||||||||||
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Basic information | Name: O'Malley 015 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2011 Country: Australia Mass: 63.9 g | ||||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 8876 approved meteorites (plus 5 unapproved names) classified as L5. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||
Comments: | Approved 23 Feb 2012 | ||||||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 100:
O’Malley 015 30°32’18.3"S, 131°15’18.9"E South Australia, Australia Found: 10 Apr 2011 Classification: Ordinary chondrite (L5) History: Single piece found by A. Tomkins on the Nullarbor plain. Physical characteristics: Single rounded greenish sample with rust spots that appears very fresh, but lacking fusion crust. Petrography: (A. Tait, Monash) Matrix is clear and recrystallized. Chondrules edges poorly defined. Plagioclase is readily discernible. Olivine and pyroxene are subhedral and up to 400 μm. Chondrule population includes; GOP, C, BO, POP and RP. Shock lamellae are present in many of the large olivine crystals, and undulose extinction is common. Metal grains to 1 mm. Melt pockets exist around the edges of most metal grains. Some metal grains have been slightly oxidized, but most are intact. Geochemistry: (A. Tait, Monash) Microprobe analyses show that olivine and pyroxene compositions are uniform: olivine Fa23.4-24.4, mean=24.04 mol%, std=0.43, n=4; Low-Ca pyroxene Fs20.6-21.5, mean=21.01 mol%, std=0.39, n=4. Classification: Ordinary Chondrite (L5, S3, W1). | ||||||||||||||||||||||||||||||||||||||
Data from: MB100 Table 1 Line 1724: |
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Institutions and collections |
Monash: Building 28
School of Geosciences
Monash University
Victoria 3800
Australia, Australia (institutional address; updated 12 Dec 2012) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Geography: |
Statistics: This is 1 of 241 approved meteorites from South Australia, Australia (plus 3 unapproved names) (plus 4 impact craters) This is 1 of 719 approved meteorites from Australia (plus 11 unapproved names) (plus 27 impact craters) | ||||||||||||||||||||||||||||||||||||||
Proximity search: | |||||||||||||||||||||||||||||||||||||||
Revision history: |
This lists important revisions made to data for this record.
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