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O'Malley 008 | |||||||||||||||||||||||||||||||||||||||
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Basic information | Name: O'Malley 008 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2011 Country: Australia Mass: 3.4 g | ||||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 12727 approved meteorites (plus 11 unapproved names) classified as L6. [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 008 30°45’29.0"S, 131°26’52.9"E South Australia, Australia Found: 8 Apr 2011 Classification: Ordinary chondrite (L6) History: Single piece found by A. Tomkins on the Nullarbor plain. Physical characteristics: Small flat dark-brown stone lacking fusion crust and partially covered with lichens. Petrography: (A. Tait, Monash) Transparent recrystallized matrix. Chondrule edges are not readily distinguished. Chondrule populations include; RP, PO, POP, BO, PP (the majority are porphyritic). Plagioclase grains are ~50 μm. Metal grains and sulfides have been completely oxidized. Olivine grains show undulose extinction, and no shock lamellae. Geochemistry: (A. Tait, Monash) Microprobe analyses show that olivine and pyroxene compositions are uniform: olivine Fa25.3-25.8, mean=25.48 mol%, std=0.21, n=4; Low-Ca pyroxene Fs21.4-21.9, mean=21.73 mol%, std=0.21, n=3. Classification: Ordinary Chondrite (L6, S2, W4). | ||||||||||||||||||||||||||||||||||||||
Data from: MB100 Table 1 Line 1717: |
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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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