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| Dhofar 1434 | |||||||||||||||||||||||||||||
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| Basic information | Name: Dhofar 1434 This is an OFFICIAL meteorite name. Abbreviation: Dho 1434 Observed fall: No Year found: 2007 Country: Oman Mass:  42 g | ||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 9 approved meteorites classified as CM-an. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||||||
| Comments: | Approved 9 Jan 2009 | ||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 95:
Dhofar 1434 18°21.405′N, 54°1.555′E Dauka, Thambreyt, Dhofar, Oman Find: 6 February 2007 Carbonaceous chondrite (CM anomalous) History: On 6 February 2007, Rainer Bartoschewitz (Bart) discovered the meteorite while passing the desert from the UNESCO world cultural heritage Ubar (Shişr) to the sea near Shu’aymiah. Physical characteristics: One fragment partly covered with fresh black fusion crust (0.2 to 0.5 mm thick) and weighing 40.6 g plus three splinters weighing 0.7 g, 0.4 g, and 0.3 g were recovered. Petrography (R. Bartoschewitz, Bart): Irregular-shaped olivine aggregates (0.1–0.7 mm), chondrules (0.2–0.7 mm) and CAIs up to 0.2 mm are set in a fine-grained matrix consisting of phyllosilicates and isolated olivine fragments up to 0.2 mm in size and sulfides (dominantly pentlandite and pyrrhotite). Kamacite occurs in olivine aggregates and chondrules. CAIs are spinel-rich. Magnetic susceptibility is log χ = 3.97 × 10−9 m3/kg. Mineral composition (R. Bartoschewitz, Bart; P. Appel, B. Mader, Kiel): Olivine has mean Fa10 ranging from Fa0.6–44 (n = 48). Chromite, TiO2 0.5–1.6, Al2O3 0.1–13.8, MgO 0.8–9.9 and kamacite Ni 5.4–6.3, Co 0.4, P 0.2–0.8 (all in wt%). Oxygen isotopes (I. A. Franchi and R. C. Greenwood, OU): δ17O = 9.22, δ18O = 21.85, Δ17O = −2.55. The oxygen isotopic composition is anomalous for CM chondrites, but plots close to the anomalous Dhofar 225, Belgica-7904, Yamato-82162, and Yamato-86720. Classification (R. Bartoschewitz, Bart): carbonaceous chondrite (CM anomalous), S1. Type specimens: A total of 7.0 g is on deposit at Kiel and 1.1 g on deposit at OU. Bart holds the main mass and one thin section. | ||||||||||||||||||||||||||||
| Data from: MB95 Table 7 Line 5: |
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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. 95, MAPS 44, 429-462 (2009)
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Geography:
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Statistics: This is 1 of 2166 approved meteorites from Zufar, Oman (plus 22 unapproved names) This is 1 of 3999 approved meteorites from Oman (plus 434 unapproved names) | ||||||||||||||||||||||||||||
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