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| O'Malley 002 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: O'Malley 002 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2011 Country: Australia Mass:  4.6 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 8891 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 002 30°59’35.2"S, 131°19’57.1"E South Australia, Australia Found: 6 Apr 2011 Classification: Ordinary chondrite (L5) History: Single piece found by A. Tait on the Nullarbor plain. Physical characteristics: Dark reddish-brown stone, ~70% fusion crusted with weathered broken surfaces. Petrography: (A. Tait, Monash). Indistinct chondrule populations include; PO, RP and BO. The matrix has been recrystalized and is transparent. Olivine recrystallised and anhedral, plagioclase is typically > 50 μm. Metal grains and sulfides have almost been completely oxidized. Olivine has undulose extinction, and no shock lamellae. The sample has many melt pockets, and a series of melt networks cross cut the entire sample. Geochemistry: (A.Tait, Monash) Microprobe analyses show that olivine and pyroxene compositions are uniform: olivine Fa24.8-25.3, mean=25.03 mol%, std=0.29, n=4; Low-Ca pyroxene Fs19.9-20.8, mean=20.47 mol %, std=0.40, n=4. Classification: Ordinary Chondrite (L5, S4, W3). | ||||||||||||||||||||||||||||||||||||||
| Data from: MB100 Table 1 Line 1711: |
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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:
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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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