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Northwest Africa 3260 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 3260 This is an OFFICIAL meteorite name. Abbreviation: NWA 3260 Observed fall: No Year found: 2007 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 469 approved meteorites classified as LL3. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||
Comments: | Approved 21 May 2016 | ||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 105:
Northwest Africa 3260 (NWA 3260) (Northwest Africa) Purchased: 2007 Classification: Ordinary chondrite (LL3) History: Purchased in Rissani in 2007. Physical characteristics: (R. Bartoschewitz, Bart) One brown stone of 8.2 g; saw cut shows closely packed chondrules. Petrography: (R. Bartoschewitz, Bart) Microscopic examination of a thin section shows dark fine groundmass with mineral fragments, chondrules (PO, BO, RP, dominated by type I) up to 1.7 mm (avg. 1 mm), and CAIs. Chondrule/matrix ratio ~10. Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine, Fa13.7±8.3 (n=18); pyroxene, Fs9.9±5.7Wo1.6±1.3 (n=20); Ca-pyroxene, En86±8Fs7.5±6Wo6.5±0.3 (n=2, Fe/Mn=27); kamacite, Ni=2.5-3.9, Co=0.5 wt.%. O-isotopes (R. Greenwood and Ian Franchi, OU): δ17O = 3.569, δ18O = 5.65 (permil). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 3.75. Classification: Ordinary chondrite (LL3) Specimens: 1.6 g on deposit at Kiel, main mass Bilet (As, Norway), and Bart 1.0 g. | ||||||||||||||||||||||||||||||||
Data from: MB105 Table 0 Line 0: |
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Plots: | O isotopes: | ||||||||||||||||||||||||||||||||
Institutions and collections |
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013) OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011) Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019) |
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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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Geography: |
Statistics: This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names) |