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Northwest Africa 13134 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13134 This is an OFFICIAL meteorite name. Abbreviation: NWA 13134 Observed fall: No Year found: 2013 Country: (Northwest Africa) 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 5 Apr 2020 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 109:
Northwest Africa 13134 (NWA 13134) (Northwest Africa) Find: 2012 Classification: Martian meteorite (Shergottite) History: purchased in 2013 by M. Morgan in Morocco Physical characteristics: Physical: several pieces, some with fresh fusion crust Petrography: (Y. Liu, JPL) Medium-grained (up to ~3 mm in length) sub-ophitic assemblage of maskelynite and pyroxenes, with accessory ulvöspinel, ilmenite, merrillite, and apatite. Ulvöspinel contains Si-rich glass. K-rich mesostasis is abundant. Geochemistry: Minerology: Pigeonite (Fs41±10Wo13±2, FeO/MnO=32±3, n=17), Augite (Fs26±8Wo33±2, FeO/MnO=30±3, n = 4), maskelynite (An49±3Or2±1, n =10). Oxygen isotopes (E. Young, UCLA): 2 acid-washed fragments analyzed by laser fluorination gave δ18O= 4.503, 4.636; δ17O= 2.699, 2.770; Δ17O= 0.318, 0.318. Classification: Martian (basaltic shergottite) Specimens: 3 g at UCLA. The remainder is held by M. Morgan at Mile High Meteorites. | ||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Plots: | O isotopes: | ||||||||||||||||||||||||||||
Institutions and collections |
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names) |