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Aridal 010 | |||||||||||||||||||||||||||||||||||||
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Basic information | Name: Aridal 010 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2013 Country: Western Sahara Mass: ![]() | ||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 55 approved meteorites classified as Brachinite. [show all] Search for other: Brachinites, Primitive achondrites | ||||||||||||||||||||||||||||||||||||
Comments: | Approved 1 Apr 2015 | ||||||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 104:
Aridal 010 25°46.6’N, 14°06.84’W Western Sahara Find: 2013 Apr 24 Classification: Primitive achondrite (Brachinite) History: Found by Svend Buhl and Tomas Fuellengraben on April 24, 2013 Physical characteristics: A single brownish, oxidized stone. Petrography: Optical microscope examination of a polished section reveals an equilibrated texture with triple junctions. Main mineral is olivine (grain size 400 μm). Accessory plagioclase (grain size 500 μm) and pyroxene (grain size 150-400 μm). Presence of Ca-phosphate and chromite. Geochemistry: Olivine Fa=28.6±0.7 (n=14), FeO/MnO=50.0±1.8; Augite Fs=10.6±0.2 (n=3) Wo=43.7±0.2 (n=3), FeO/MnO=28.0±2.1, Al2O3=0.6 wt%; Plagioclase Ab82.2 Or1.4 An16.34. Oxygen isotopic composition (J. Gattacceca, C. Sonzogni, CEREGE) δ17O=3.10 per mil, δ18O=6.17 per mil, Δ17O=-0.11 per mil (analysis of 1.5 mg of hand-picked olivine grains after acid washing of a 200 mg powdered sample, TFL slope=0.52). Classification: Based on petrography, geochemistry and oxygen isotopic composition this is a primitive achondrite (brachinite). Specimens: 26 g at FSAC, 14 g at CEREGE. Main mass with Svend Buhl. | ||||||||||||||||||||||||||||||||||||
Data from: MB104 Table 0 Line 0: |
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Plots: | O isotopes: | ||||||||||||||||||||||||||||||||||||
Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 29 Oct 2018) FSAC: Universite Hassan II Casablanca, Faculte des Sciences Ain Chock, Departement de Géologie, BP 5366 Maârif, Casablanca, Morocco (institutional address; updated 9 Jan 2013) |
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Catalogs: |
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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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Photos: |
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Geography:![]() |
Statistics: This is 1 of 265 approved meteorites from Western Sahara (plus 20 unapproved names) | ||||||||||||||||||||||||||||||||||||
Proximity search: |