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O'Malley 010 | |||||||||||||||||||||||||||||||||||||||
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Basic information | Name: O'Malley 010 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2011 Country: Australia Mass: 52.9 g | ||||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 8877 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 010 30°56’03.0"S, 131°21’40"E South Australia, Australia Found: 9 Apr 2011 Classification: Ordinary chondrite (L5) History: Single piece found by A. Tomkins on the Nullarbor plain. Physical characteristics: Single rounded dark-brown stone with ~40% pitted and broken fusion crust. Petrography: (A. Tait, Monash) The matrix has been recrystallized and chondrule edges are indistinct. Subhedral olivine grains are up to 300 μm. Relict chondrule populations include; BO, CP, RP, PO. Plagioclase is readily discernible by reflected light. A third of olivine grains show undulose extinction, and some have shock lamellae. Metal grains and sulfides have been oxidized in uneven pockets throughout the sample, with an overall moderate amount of oxidation. Geochemistry: (A. Tait, Monash) Microprobe analyses show that olivine and pyroxene compositions are uniform: olivine Fa24.7-25.4, mean=25.08 mol%, std=0.31, n=4; Low-Ca pyroxene Fs21.2-21.8, mean=21.49 mol%, std=0.21, n=5. Classification: Ordinary Chondrite (L5, S2, W2). | ||||||||||||||||||||||||||||||||||||||
Data from: MB100 Table 1 Line 1719: |
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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) | ||||||||||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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