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| Aridal 011 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Aridal 011 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2012 Country: Western Sahara Mass:  568 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 3314 approved meteorites (plus 1 unapproved name) classified as LL5. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 9 Nov 2015 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 104:
Aridal 011 25°38.965’N, 13°50.790’W Rio de Oro, Western Sahara Find: 2012 Feb 16 Classification: Ordinary chondrite (LL5) History: Discovered by S. Buhl and A. Kopelt during natural history expedition close to the astronomical point of Ammat el Quebch in the Boujdour area on 2012 Feb 21. Physical characteristics: One stone of 285 g, nearly complete, covered with gray-black crust; saw-cut shows chondrules and various clasts set in fine-grained gray groundmass. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.65. One stone of 103 g, dominantly covered with gray-black crust; saw-cut shows chondrules and various clasts set in fine-grained gray groundmass. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.60. One stone of 180 g, nearly covered with gray-black crust. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.29. Petrography: Microprobe examination of a polished thin section shows moderately developed chondrules (porphyritic, granular, barred) up to 2 mm (av. 0.9 mm), chondrule and mineral fragments in recrystallized matrix with few metal grains. Geochemistry: (R. Bartoschewitz, P. Appel and B. Mader, Kiel) Olivine: Fa27.4-28.8; av. Fa28.4±0.38 (n=13); pyroxene Fs22.8-29.1Wo1.2-1.9; av. Fs23.9±1.8Wo1.6±0.17 (n=10); feldspar An10-17Or6-18; kamacite Ni = 4.5-4.7, Co =1.3 wt.-%; chromite CRAL = 86.2; FFM = 91.8; Fe/Mg=10,95. Classification: Ordinary Chondrite (LL5) of shock stage S3 and weathering grade W1. Specimens: 21.6 g on deposit at FSAC | ||||||||||||||||||||||||||||||||||||||
| Data from: MB104 Table 0 Line 0: |
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| Institutions and collections |
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013) 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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Geography:
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Statistics: This is 1 of 52 approved meteorites from Rio de Oro, Western Sahara This is 1 of 286 approved meteorites from Western Sahara (plus 20 unapproved names) | ||||||||||||||||||||||||||||||||||||||
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