Results 21 to 30 of about 202 (118)
Egyptian Journal of Remote Sensing and Space Sciences, 2012 This research aims at integrating remote sensing data and field studies for lithological mapping of different rock units. Geological interpretation of Landsat ETM+ image and field studies revealed that the study area is mainly covered by ophiolitic ...
A.K.A. Salem, A.E. Khalil, T.M. Ramadan
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Journal of Economic Geology, 2019 Introduction Podiform chromite deposits are small magmatic chromite bodies formed in the lower section of an ophiolite complex. Podiform chromite mines have produced 57.4 percent of the world’s total chromite production.
Jaber Masoudi, Ali Imamalipour
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Podiform chromite ore bodies: a model of magma flow through dikes and cavities
International Kimberlite Conference Extended Abstracts: 1982, 2019 Dikes And +2 more
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Genesis of Chromitite in Qalander Area, Northern Iraq [PDF]
Kirkuk Journal of Science, 2006 The study area is an isolated ultramafic complex composite of harzburgite-dunite-chromitite association in Qalander area, abut 10 km east of Mergesur, Erbil City, northern Iraq.
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Chromian spinel geochemistry as a petrogenetic indicator in the chromitites and peridotites of the Bajgan Complex, Western Makran [PDF]
پترولوژیIntroductionEconomic chromite deposits are very common in ophiolite belts. These deposits usually occur in the uppermost horizons of the ophiolite mantle sequence or within the ultramafic cumulitic rocks at the base of the crustal sequence (González ...
Leila Vahedi +2 more
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Ophiolite-Hosted Diamond: A New Window for Probing Carbon Cycling in the Deep Mantle
Engineering, 2019 As reported in our prior work, we have recovered microdiamonds and other unusual minerals, including pseudomorph stishovite, moissanite, qingsongite, native elements, metallic alloys, and some crustal minerals (i.e., zircon, quartz, amphibole, and rutile)
Dongyang Lian, Jingsui Yang
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Origin of chromite nodules in podiform chromitite from the Kızıldağ ophiolite, southern Turkey
Ore Geology Reviews, 2021 Abstract Chromite nodule is unique in podiform chromitite of ophiolitic suites and there is no agreement on its petrogenesis. The nodular chromitites of the Kizildag ophiolite in southern Turkey contain typical chromite nodules, and here their geochemical compositions and crystallographic orientations have been analyzed to study the formation of ...
Chen Chen +3 more
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Recycling Subducted Organic Carbon as Diamonds: An Example From the New Caledonia Forearc Ophiolite
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.Abstract Micro‐diamonds and moissanite (SiC) have been identified in ophiolitic mantle harzburgites and chromitites of the New Caledonian Peridotite Nappe. The pale yellow (100–250 μm) micro‐diamonds and light blue moissanite (mean −26.5‰, range −33.5‰ to −23.8‰ and mean −26.9‰, range −31.8‰ to −25.6‰ respectively) exhibit consistently strong negative ...
Jonathan C. Aitchison +7 more
wiley +1 more source
Chromitite deposits of Ufaley ultramafic massif (South Urals)
GeoresursyData on the morphology, composition, textural and structural features of chromite deposits of the Ufaley ultramafic massif are presented. The mineralogical and compositional features of the host ultramafic rocks allow us to interpret them as depleted ...
D. E. Saveliev
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Podiform Chromitites in the Sorkhband Ultramafic Complex, Southern Iran: Evidence for [PDF]
Journal of Sciences, Islamic Republic of Iran, 2008 The podiform chromitite deposits of the Ordovician Sorkhband ultramafic complex, southwestern Makran, are the largest chromitite deposits in Iran. The Sorkhband ultramafic complex comprises of a northern part of dunite, podiform chromitite, olivine ...
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