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Dhofar 2046 | |||||||||||||||||||||||||||||||
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Basic information | Name: Dhofar 2046 This is an OFFICIAL meteorite name. Abbreviation: Dho 2046 Observed fall: No Year found: 2011 Country: Oman Mass: 16.6 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 10 approved meteorites classified as CM2-an. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 19 Apr 2016 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 105:
Dhofar 2046 (Dho 2046) 18°21’24.4"N, 54°11’14.4"E Zufar, Oman Find: 2011 Mar 13 Classification: Carbonaceous chondrite (CM2, anomalous) Physical characteristics: A single black stone. Cut surface reveal homogeneous black interior. Petrography: Chondrules (mostly olivine-rich), chondrule fragments and olivine fragments (20 vol%) in a fine-grained iron-rich matrix (80 vol%). Average chondrule diameter 240±130 μm (N=25). Chondrules have fine-grained dust mantles. FeNi + FeS grains to 50 μm are found in the matrix and in the chondrules. Geochemistry: Olivine Fa15.2±24.2 (Fa0.5-76.7, median Fa1.4, PMD=90%, N=9). Oxygen isotopic composition (J. Gattacceca, C. Sonzogni, CEREGE) is δ17O=7.78 ‰, δ18O=19.93 ‰ (analysis of one acid-washed 1.5 mg aliquot of a powdered 200 mg bulk sample). Magnetic susceptiblity log χ (× 10-9 m3/kg) = 4.05. Classification: CM2-anomalous. The oxygen isotopic composition is anomalous compared to most CM chondrites. The meteorite is possibly paired with Dhofar 225 that has the same oxygen isotopic composition and was found nearby. Specimens: Type specimen and polished section at CEREGE. Main mass with anonymous finder. | ||||||||||||||||||||||||||||||
Data from: MB105 Table 0 Line 0: |
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Plots: | O isotopes: | ||||||||||||||||||||||||||||||
Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 10 Jun 2023) |
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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 2167 approved meteorites from Zufar, Oman (plus 26 unapproved names) This is 1 of 3998 approved meteorites from Oman (plus 441 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
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