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| Ooldea 008 | |||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Ooldea 008 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2013 Country: Australia Mass:  56.9 g | ||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 2809 approved meteorites (plus 1 unapproved name) classified as LL6. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||
| Comments: | Approved 18 Jul 2015 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 104:
Ooldea 008 30°35’44.6"S, 131°50’53.2"E South Australia, Australia Purchased: 2013 Apr 20 Classification: Ordinary chondrite (LL6) History: Five fragments found by E. Mare Physical characteristics: 5 fragments found scatterd within a small area. Petrography: (S. Nutku, Monash) Poorly defined chondrules with indistinct edges, ranging from 0.5mm to 1.5mm reside in strongly recrystallized matrix. Matrix mineralogy composed of olivine, pyroxene and plagioclase, crystal size range 40-200 microns. Chondrule types include, RP, POP, PP, PO and cryptocrystalline. Mineralogy includes olivine, pyroxene, plagioclase and minor Fe-Ni metal, troilite minerals. Undulatory extinction is observed in 40% of olivines. Planar fractures pervasive with larger olivine crystals showing conjugate fractures. Minor shock melting is observed. Sample is extensively weathered with only 5% Fe-Ni metal and <10% troilite remaining. Geochemistry: (S. Nutku, Monash) Microprobe analyses show that olivine have moderately variable compositions and pyroxene have uniform compositions: olivine Fa25.0-26.9, mean Fa25.9±0.8, n=5; Low-Ca pyroxene Fs21.8-22.9, mean Fs22.3±0.5, n=5. Classification: Ordinary chondrite (LL6, S4, W4) Specimens: All specimens and one thin section held by A. Tomkins. | ||||||||||||||||||||||||||||||||||||
| Data from: MB104 Table 0 Line 0: |
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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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| References: | Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography:
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Statistics: This is 1 of 239 approved meteorites from South Australia, Australia (plus 2 unapproved names) (plus 4 impact craters) This is 1 of 715 approved meteorites from Australia (plus 45 unapproved names) (plus 27 impact craters) | ||||||||||||||||||||||||||||||||||||
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