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Dhofar 1480 | |||||||||||||||||||||||
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Basic information | Name: Dhofar 1480 This is an OFFICIAL meteorite name. Abbreviation: Dho 1480 Observed fall: No Year found: 2003 Country: Oman Mass: ![]() | ||||||||||||||||||||||
Classification history: |
This is 1 of 396 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||
Comments: | Approved 11 May 2009 | ||||||||||||||||||||||
Writeup![]() |
Writeup from MB 96:
Dhofar 1480 Zufar, Oman Find: 2003 Achondrite (polymict eucrite) History: Found in the desert by anonymous collector. Physical characteristics: Irregularly shaped stone with total weight of 57.7 g and dark green color. No fusion crust. Brecciated texture is clearly visible on the surface of the meteorite. Petrography (C. A. Lorenz, Vernad): The meteorite is a polymict breccia, consisting of rock fragments and mineral clasts, embedded in a fine-grained clastic matrix. Locally, the clasts are joined together by devitrified melt. Melt pockets and melt veins occur in the breccia. Rock fragments are fine- and medium-grained, minor coarse-grained (up to 0.5 mm) pyroxene-plagioclase rocks of porphyritic, granular gabbroic, minor poikilitic and granulitic texture. Pyroxenes are usually exsolved. Pyroxenes show mosaicism; augite lamellae are disturbed by shock. Plagioclase is partially isotropic. Minor minerals are olivine, ilmenite, spinel, tridymite, quartz, a phosphate mineral, troilite, metal Fe-Ni metal. Mineral compositions and geochemistry: (N. N. Kononkova, Vernad), EMP, lithic and mineral clasts: low-Ca pyroxene En32.6Wo1.6-En39.6Wo4.5 (average En35.6Wo2.7; Fe/Mn = 32) with lamellae En29.7Wo42.0; feldspar An86.0Ab13.5-An91.9Ab7.7; matrix: pyroxene En30.4Wo1.9-En41.6Wo4.5 with lamellae En30.8Wo42.3, feldspar An85.8Ab13.6-An90.6Ab8.7. Bulk composition (I. A. Roshina, Vernad) semi quantitative-XRF (wt%): SiO2 = 45, TiO2 = 0.6, Al2O3 = 16.4, Na2O = 0.6, CaO = 10, MgO = 5; MnO = 0.6; FeO = 18, Cr2O3 = 0.3. Oxygen isotopes composition (I. Franchi, OU): δ17O = 1.848‰; δ18O = 3.963‰. Classification: Achondrite (polymict eucrite). Minor weathering. | ||||||||||||||||||||||
Data from: MB96 Table 7 Line 2: |
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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. 96, MAPS 44, 1355-1397 (2009)
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Geography:![]() |
Statistics: This is 1 of 2167 approved meteorites from Zufar, Oman (plus 24 unapproved names) This is 1 of 4002 approved meteorites from Oman (plus 436 unapproved names) | ||||||||||||||||||||||
Proximity search: |