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Northwest Africa 5049 | |||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 5049 This is an OFFICIAL meteorite name. Abbreviation: NWA 5049 Observed fall: No Year found: 2006 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||
Classification history: |
This is 1 of 642 approved meteorites (plus 1 unapproved name) classified as CO3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites | ||||||||||||||||||||||||||
Comments: | Approved 24 Nov 2015 | ||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 104:
Northwest Africa 5049 (NWA 5049) (Northwest Africa) Purchased: 2006 May Classification: Carbonaceous chondrite (CO3) History: Purchased by Thomas Webb in May 2006 from a dealer in Agadir, Morocco. Petrography: (A. Irving and S. Kuehner, UWS) Small, separated, rounded chondrules and rare CAI in a dark brown, very fine grained matrix (~25 vol.%) containing ferroan silicates, altered kamacite, troilite and pentlandite. Chondrules have granular textures and some have finer grained rims. Geochemistry: Olivine (Fa0.9-71.4; Cr2O3 in ferroan examples = 0.02-0.08 wt.%, mean = 0.06±0.02 wt.%, N = 8), orthopyroxene (Fs1.5-1.6Wo0.9-0.8), clinopyroxene (Fs1.6-2.7Wo49.1-47.6). Oxygen isotopes (K. Ziegler, UNM): analyses of acid-washed subsamples by laser fluorination gave, respectively δ17O = -4.964, -5.342; δ18O = -1.313, -1.946; Δ17O = -4.271, -4.315 per mil (for a TFL slope of 0.528). Classification: Carbonaceous chondrite (CO3). Specimens: 18.4 g at App, 1.8 g at UWS, 1.2 g at AMSA. The remaining material is held by TWebb. | ||||||||||||||||||||||||||
Data from: MB104 Table 0 Line 0: |
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Plots: | O isotopes: | ||||||||||||||||||||||||||
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) UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) AMSA: Australian Museum, 6 College Street, Sydney, NSW 2010, Australia (institutional address; updated 18 Oct 2011) App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013) UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) TWebb: No contact information provided., United States (private address) |
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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: |
Statistics: This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names) |