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Plateau du Tademait 008 | |||||||||||||||||||||||||||||||||||||
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Basic information | Name: Plateau du Tademait 008 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2022 Country: Algeria Mass: ![]() | ||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 298 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite). [show all] Search for other: Martian meteorites | ||||||||||||||||||||||||||||||||||||
Comments: | Approved 11 Feb 2023 | ||||||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 112:
Plateau du Tademait 008 28°55’03.8"N, 0°59’05.6"E Adrar, Algeria Purchased: 2022 Classification: Martian meteorite (Shergottite) History: Purchased from Algerian dealer Ali Mftah Mftah by Mark Lyon in 2022. Physical characteristics: Single stone with patches of black fusion crust, sandblasted surfaces show exposed olivine phenocrysts. A polished slice reveals numerous pale green olivine phenocrysts up to ~1 cm in diameter that poikilitically enclose smaller pyroxene grains. The groundmass consists of dark gray pyroxene grains up to 500 μm and smaller olivine grains. Petrography: (C. Agee, UNM) This meteorite has the approximate modal abundances: 50% clinopyroxene, 25% olivine, 10% maskelynite, with accessory ilmenite, chromite, Ti-Cr spinel, and pyrite. Clinopyroxene shows a tightly bound, continuous calcium enrichment trend. Olivine phenocrysts show a narrow compositional range from low Ca-pyroxene to pigeonite to subcalcic augite. Maskelynite is usually observed occupying pyroxene and olivine grain boundary pockets. Small vesicles are scattered throughout. Geochemistry: (M. Spilde, UNM) Olivine Fa40.4±0.9, Fe/Mn=50±2, CaO=0.25±0.05, (wt%), n=6; clinopyroxene Fs26.3±4.6Wo17.6±9.2, Fe/Mn=29±2, n=12; maskelynite An51.0±3.2Ab47.2±3.4Or1.8±0.5, n=7. Classification: Martian shergottite (olivine-phyric basalt). Specimens: 45 g on deposit at UNM, Mark Lyon holds the main mass | ||||||||||||||||||||||||||||||||||||
Data from: MB112 Table 0 Line 0: |
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Institutions and collections |
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. 112, in preparation (2023)
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Geography:![]() |
Statistics: This is 1 of 192 approved meteorites from Adrar, Algeria (plus 1 unapproved name) This is 1 of 1294 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||||||||||||||||||
Proximity search: |