Results 21 to 30 of about 355 (139)
Geological Journal, Volume 53, Issue 2, Page 580-599, March/April 2018., 2018 Chromites and sulphides are the most common ore minerals in the ophiolitic metasomatized ultramafics (~790 Ma) of Um Halham, Fawakhir and Barramiya, central Eastern Desert, Egypt. These ultramafics exhibit variable degrees of alteration and metasomatism and include massive serpentinites (serpentinized peridotite and serpentinite), tremolite‐talc rocks,
Abdel‐Aal M. Abdel‐Karim +2 more
wiley +1 more source
, 2023 The East Sulawesi Ophiolite, one of the three largest ophiolites in the world, contains important podiform chromitites. However, the origin of these chromite deposits is not well constrained. Here, we present the detailed mineralogy and in situ chemistry
Mega Fatimah Rosana (14431843) +6 more
core +1 more source
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.
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Mineralogical characterization of podiform chromitite deposits in the Mirdita Ophiolite, Albania
, 2021 The Mirdita Ophiolite in Albania is part of an ophiolite belt occurring between the Apulian and Pelagonian subcontinents in the Balkan Peninsula. Within the Eastern Mirdita Ophiolite major chromite deposits are currently under production.
Junge, Malte +5 more
core +1 more source
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
Podiform chromite at Voskhod, Kazakhstan [PDF]
, 2012 The Voskhod podiform chromitite is one of more than 30 chromitite deposits that collectively form the Main Ore Field (MOF) within the Kempirsai Massif, in Kazakhstan. The MOF is the largest podiform chromitite ore-field in the world. The Voskhod deposit,
Johnson, Caroline
core
3D Model of Podiform Chromite (Cod. CL-001-078-2-419)
, 2021 CÓDIGO DE LA PIEZA: CL-001-078-2-419 CATEGORÍA: Elemento Mineralógico CLASIFICACIÓN: Cromita podiforme ADQUISICIÓN: Donación FECHA DE REGISTRO: 22-09-2022ITEM CODE: CL-001-078-2-419 CATEGORY: Mineralogical Element CLASSIFICATION: Podiform Chromite
Gómez Cruz, Arley de Jesús +3 more
core
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
doaj +1 more source