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Northwest Africa 15308 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15308 This is an OFFICIAL meteorite name. Abbreviation: NWA 15308 Observed fall: No Year found: 2022 Country: (Northwest Africa) Mass: 4.09 kg | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 11 approved meteorites classified as L3.15. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||
Comments: | Approved 12 Nov 2022 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 15308 (NWA 15308) (Northwest Africa) Purchased: 2022 Apr Classification: Ordinary chondrite (L3.15) History: Purchased in April 2022 from a dealer in Temara, Morocco, by Ziyao Wang, who subsequently sold part of the material to Jiachang Yu in June 2022. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed unequilibrated chondrules (apparent diameter 760 ± 370 µm, N = 27) are set in a fine grained matrix (opaque in thin section) containing pervasively altered kamacite, taenite and troilite. Geochemistry: Olivine (Fa20.7±18.4, range Fa1.1-55.1, N = 7; Cr2O3 in ferroan olivine 0.08-0.83 wt.%, mean 0.25 wt.%, sd 0.15 wt.%, N = 30), low-Ca pyroxene (Fs22.5±5.7Wo2.0±1.3, range Fs18.2-29.0Wo0.9-3.5, N = 4), subcalcic augite (Fs11.5Wo28.5; Fs22.3Wo22.0; N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.64. Classification: Ordinary chondrite (L3.15). Petrologic subtype based on mean and standard deviation of Cr2O3 contents in ferroan olivine per Figure 15 in Grossman and Brearley (2005). Specimens: 24.0 g including one polished thin section at UWB; 300 g with Mr. Jiachang Yu; main mass with WangZ. | ||||||||||||||||||||||||||||||||
Bibliography: |
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Data from: MB111 Table 0 Line 0: |
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Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Photos: |
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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