|Northwest Africa 960|
|Basic information||Name: Northwest Africa 960|
This is an OFFICIAL meteorite name.
Abbreviation: NWA 960
Observed fall: No
Year found: 2001
Country: (Northwest Africa)
Mass: 997 g
This is 1 of 9 approved meteorites classified as OC3. [show all]
Search for other: Ordinary chondrites, Ordinary chondrites (type 3)
Approved 28 Mar 2007|
Revised 24 Apr 2007: Revised nomenclature for classification
Writeup from MB 91:
Northwest Africa 960
Find: December 2001
Ordinary chondrite (type 3)
History: Purchased in December 2001 by A. and G. Hupé from a Moroccan dealer in Erfoud, Morocco.
Physical characteristics: A single dark brown stone weighing 997 g.
Petrography: (A. Irving and S. Kuehner, UWS; M. Zolensky, JSC) Very chondrule-rich (~80 vol%), with a brown oxidized matrix. Most chondrules (up to 3 mm in diameter, though most below 1 mm) are olivine-rich but some contain low-Ca pyroxenes. Minor magnetite, troilite, pentlandite, chromite, and glass are also present. No metal was observed.
Mineral compositions and geochemistry: Olivine (Fa2–29; peak at Fa2–3, average Fa9.63), low-Ca pyroxene (Fs2–34; peak at Fs2–3, average Fs10.46). Oxygen isotopes: (D. Rumble, CIW) Laser fluorination of whole rock samples (all reported as ‰); δ18O = 6.03, 6.04, 6.18; δ17O = 3.74, 3.78, 3.83; Δ17O = +0.559, +0.592, +0.567.
Classification: Ordinary chondrite (type 3); S1, W1–2. Although the Δ17O values are near those for H chondrites, the δ18O values are much higher and the mineral composition suggests this specimen is very different from H chondrites.
Type specimen: A total of 23 g of sample and one polished thin section are on deposit at UWS. G. Hupé holds the main mass.
JSC: Mailcode KT, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 3 Sep 2013)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
CIW: Carnegie Insitution Washington, Geophysical Laboratory, 5251 Broad Branch Rd., NW, Washington DC 20015, United States (institutional address)
|References:||Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)|
This is 1 of 5725 approved meteorites from (Northwest Africa) (plus 2074 unapproved names)
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