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Ooldea 015 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Ooldea 015 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2013 Country: Australia Mass: ![]() | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 453 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||||||||||||||||||||||
Comments: | Approved 27 Mar 2019 | ||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 108:
Ooldea 015 30°31’53.5"S, 131°50’15.7"E South Australia, Australia Find: 23 Apr 2013 Classification: HED achondrite (Howardite) History: Single non-magnetic stone found by A. Tomkins Physical characteristics: A brown flatish stone with sparse patches (5%) of black fusion crust. Petrography: (S. Alkemade) This meteorite is an achondrite polymict breccia, containing clasts of eucrite and diogenite with sizes ranging from 0.2-5 mm in a clastic matrix. Mineralogy consists of orthopyroxene (>10%), clinopyroxene, plagioclase and minor olivine. A few dark angular clasts (0.5-2 mm) are fragments of carbonaceous chondrite material with mineralogy including amphibole, mg-spinel, and clinopyroxene. Accessory minerals are troilite, FeNi metal, chromite, ilmenite and olivine. The sample is highly shocked with most clasts exhibiting mosaic extinction and planar deformation features. Oxidation of metal and troilite is slight. Geochemistry: (S. Alkemade) Orthopyroxene (Fs42.1±11.9, n=10), pigeonite (Fs22.1Wo11.0), augite (Fs25.8Wo47.1), plagioclase (An87, n=4), and rare olivine (Fa6.65, n=1). Oxygen isotope analysis completed at UNM by Karen Ziegler, samples acid treated. δ17O’=1.586 (per mil, ±0.190) , δ18O’=3.644 (per mil, ±0.387), Δ17O’=-0.338 (per mil, ±0.043). Classification: Howardite. Oxygen isotopes plot slightly below the eucrite/diogenite fractionation line, suggesting material from the carbonaceous chondrite clasts was included in the analyses. | ||||||||||||||||||||||||||||||||
Data from: MB108 Table 0 Line 0: |
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Plots: | O isotopes: | ||||||||||||||||||||||||||||||||
Institutions and collections |
Monash: Building 28
School of Geosciences
Monash University
Victoria 3800
Australia, Australia (institutional address; updated 12 Dec 2012) UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography:![]() |
Statistics: This is 1 of 240 approved meteorites from South Australia, Australia (plus 3 unapproved names) (plus 4 impact craters) This is 1 of 718 approved meteorites from Australia (plus 46 unapproved names) (plus 27 impact craters) | ||||||||||||||||||||||||||||||||
Proximity search: |