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Dhofar 1441 | |||||||||||||||||||||||||||||||
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Basic information | Name: Dhofar 1441 This is an OFFICIAL meteorite name. Abbreviation: Dho 1441 Observed fall: No Year found: 2003 Country: Oman Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 140 approved meteorites classified as Achondrite-ung. [show all] Search for other: Achondrites, Ungrouped achondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 9 Jan 2009 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 95:
Dhofar 1441 18°26.16′N 54°29.03′E Dhofar, Oman Find: 2003 Achondrite (ungrouped) History: Two fragments of a meteorite were found by an anonymous collector in the Dhofar province of Oman. Physical characteristics: The dark-brown stones of 267.85 g total weight have irregular shapes. The fusion crust is not preserved. Petrography (C. A. Lorenz, Vernad): The meteorite is a breccia, consisting of rock and mineral clasts embedded in a well crystallized melt matrix. Lithic clasts are basalts, gabbros, norites, metamorphosed pyroxene-feldspar rocks, clastic breccias, melts and rare glasses. Major phases are pyroxene and feldspar. Some pyroxenes have fine exsolution lamellae. Silica, olivine, chromite, ilmenite, troilite and metal Fe-Ni are rare phases. The matrix is fine-grained aggregate of pyroxene and feldspar. Mineral compositions and geochemistry (N. N. Kononkova, Vernad): Pyroxene is En35.3–72.5Wo1.4–5.0 (Fe/Mn = 36.3); feldspar An92.2An7.6, rare An74.4Ab23.6; olivine is Fa28.8 (Fe/ Mn = 50.4). The bulk composition (I. A. Roshina, Vernad) XRF (wt%): SiO2 = 47.83, TiO2 = 0.30, Al2O3 = 10.41, Na2O = 0.32, K2O = 0.04, CaO = 6.5, MgO = 10.88; MnO = 0.52; FeO = 20.28, Cr2O3 = 0.53. Oxygen isotopes (Franchi I., OU): δ17O = 2.675; δ18O = 5.508. Classification: Achondrite (ungrouped, impact melt breccia) with minor weathering. Type specimens: A total 28.3 g and one thin section are on deposit at Vernad. An anonymous collector holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB95 Table 7 Line 10: |
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Plots: | O isotopes: | ||||||||||||||||||||||||||||||
Institutions and collections |
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) Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 95, MAPS 44, 429-462 (2009)
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Geography:![]() |
Statistics: This is 1 of 2169 approved meteorites from Zufar, Oman (plus 24 unapproved names) This is 1 of 4006 approved meteorites from Oman (plus 436 unapproved names) | ||||||||||||||||||||||||||||||
Proximity search: |