Results 1 to 10 of about 3,682 (259)

Widespread abiotic methane in chromitites [PDF]

open access: yesScientific Reports, 2018
Recurring discoveries of abiotic methane in gas seeps and springs in ophiolites and peridotite massifs worldwide raised the question of where, in which rocks, methane was generated.
G. Etiope   +8 more
doaj   +8 more sources

Chromitite layers indicate the existence of large, long-lived, and entirely molten magma chambers [PDF]

open access: yesScientific Reports, 2022
The classical paradigm of the ‘big magma tank’ chambers in which the melt differentiates, is replenished, and occasionally feeds the overlying volcanos has recently been challenged on various grounds.
Rais Latypov   +8 more
doaj   +2 more sources

Landsat-8 data for chromite prospecting in the Logar Massif, Afghanistan [PDF]

open access: yesHeliyon, 2018
Chromite is widely distributed in the east and southeast of Afghanistan, especially in Logar Province. Chromite mineralization is podiform-type and is hosted in the stratigraphically lowest ultramafic rocks of the Logar Ophiolite Complex.
Ramadan Abdelaziz   +2 more
doaj   +2 more sources

Genesis of Chromitite in Qalander Area, Northern Iraq [PDF]

open access: yesKirkuk 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   +3 more sources

Discovery of extremely high-Al podiform chromitites from the Lycian (Marmaris) ophiolite, SW Turkey: Implications for chromitite genesis

open access: yesOre Geology Reviews, 2020
Abstract The Lycian ophiolite in SW Turkey is mainly exposed in the Marmaris-Koycegiz (Mugla) and Yesilova (Burdur) regions. Its mantle section is widely exposed around Marmaris (=Marmaris peridotite) and is primarily composed of harzburgite of abyssal affinity with sparse lenses of dunites. Unusual chromitites indicating complicated mantle processes
Osman Parlak, Cahit Dönmez
exaly   +2 more sources

Investigation of Petrological Characteristics of The Upper Mantle in Hadji-Abad Ophiolitic Complex (South of Iran): Based on Mineral Chemistry [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2021
The mantle peridotites of the Hadji-Abad ultramafic complex in Hormozgan province, show some petrological evolutions of the upper mantle of southern Iran. The complex includes harzburgite, lherzolite, dunite and chromitite.
Mojtaba SoltaniNezhad   +4 more
doaj   +1 more source

the origin of Abgarm ultramafic complex (South of Kerman province) [PDF]

open access: yesپترولوژی, 2020
Abgarm ultramafic complex in the south of Kerman province is a part of Esfandagheh- Haji Abad ophiolite which is located in the northern edge of Zagros thrust. The complex contains harzburgites, lherzolites, dunites, and chromitites.
Raziyeh Alipour   +2 more
doaj   +1 more source

Post-magmatic processes recorded in bimodal chromitites of the East Chalkidiki meta-ultramafic bodies, Gomati and Nea Roda, Northern Greece

open access: yesFrontiers in Earth Science, 2022
The meta-ultramafic bodies of Gomati and Nea Roda are situated in the Serbomacedonian Massif. They demonstrate bimodal character in terms of chromitite chemistry with both Cr- and Al-rich chromitites outcropping in proximity, with no obvious tectonic ...
Alkiviadis Sideridis   +7 more
doaj   +1 more source

Diamond and Other Exotic Mineral-Bearing Ophiolites on the Globe: A Key to Understand the Discovery of New Minerals and Formation of Ophiolitic Podiform Chromitite

open access: yesCrystals, 2021
Ophiolite-hosted diamond from peridotites and podiform chromitites significantly differs from those of kimberlitic diamond and ultra-high pressure (UHP) metamorphic diamond in terms of occurrence, mineral inclusion, as well as carbon and nitrogen ...
Fei Liu   +3 more
doaj   +1 more source

The Tornio layered intrusion - a recently discovered intrusion with chromitite horizons in Northern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1982
In the 1960's chromite boulders were found in the area between the Kemi chromium mine and the town of Tornio. In 1979 after many years of prospecting a layered intrusion with thin chromitite layers was found northeast of the town of Tornio.
K. Söderholm, O. Inkinen
doaj   +1 more source

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