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Marsa Alam 007 | |||||||||||||||||||||||||||||||||||||
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Basic information | Name: Marsa Alam 007 This is an OFFICIAL meteorite name. Abbreviation: MA 007 Observed fall: No Year found: 2013 Country: Egypt Mass: ![]() | ||||||||||||||||||||||||||||||||||||
Classification history: |
This is the only approved meteorite classified as H3.6-4. Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||||||
Comments: | Approved 23 Aug 2016 | ||||||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 105:
Marsa Alam 007 (MA 007) 25°12.79’N, 34°46.29’E Al Bahr al Ahmar, Egypt Find: 2013 Nov 27 Classification: H3.6-4 History: The meteorite was found by Mr. T. Kryachko on a small plateau near the wadi Marsa Ijli, Egypt, in November 2013. Physical characteristics: The 90.5 g stone is a meteorite fragment with remnant fusion crust. Petrography: A sample is composed of two lithologies with indefinite boundaries: 1) the host lithology consists of chondrules 60-1200 μm in size, with C, RP, BO, PO, BOP types (55 vol%, average diameter 630 μm, n=157) and a fine-grained cataclastic aggregate (45 vol%) of olivine, pyroxene and minor feldspatic glass; the aggregate contains abundant FeNi-hydroxide; accessories are troilite, chromite and rare FeNi metal (<0.02 vol%); 2) minor lithology (7.2 vol%) consists of chondrules, chondrule fragments, fragments of olivine, pyroxene and devitrified feldspatic glass, FeNi-metal (5-10 vol%), FeNi-hydroxides, troilite, and minor crystalline silicate matrix. Geochemistry: (Borisovsky S. E., IGEM) Host lithology: olivine Fa17.6±6.6 (N=42, PMD Fa=37.5); pyroxene Fs9.4±5.4Wo1.0±0.9 (N=13); metal (wt%): kamacite (Ni 4.67, Co 0.65, Si 0.05, Cr 0.12), taenite (Ni 44.6, Co 0.17, Si 0.05, Cr 0.09); minor lithology (clasts): olivine Fa18.4±0.8 (N=8; PMD Fa=4.2), pyroxene Fs16.3±0.2Wo1.4±0.1 (N=10); metal (wt%): kamacite (Ni 6.71, Co 0.64, Si 0.01, Cr 0.04), taenite (Ni 31.2, Co 0.25, Si 0.01, Cr 0.03). Classification: H3.6-H4 breccia. On the basis of the texture, TL sensitivity (0.34±0.02, A. I. Ivliev, N. S. Kujunko, Vernad) and PMD Fa, the host lithology is type 3.6 brecciated chondrite; on the basis of PMD Fa, the clasts are H4 chondrite. Specimens: The type specimen of 18.2 g and thin polished section are on deposit at Vernad. Mr. T. V. Kryachko holds a main mass of the meteorite. | ||||||||||||||||||||||||||||||||||||
Data from: MB105 Table 0 Line 0: |
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Institutions and collections |
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016) IGEM: Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences, Staromonetny Per., 35, Moscow, 119017 , Russia (institutional address; updated 16 Dec 2010) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Photos: |
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Geography:![]() |
Statistics: This is 1 of 40 approved meteorites from Al Bahr al Ahmar, Egypt This is 1 of 90 approved meteorites from Egypt (plus 12 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||
Proximity search: |