نتایج جستجو برای: gabbroic composition

تعداد نتایج: 259931  

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1968

Journal: :Lithos 2022

Mafic pegmatites have been reported from various geological environments, including ophiolites, layered magmatic intrusions, and volcanic arcs, but their petrogenesis stayed poorly constrained. This study brings new mineralogical geochemical data obtained unzoned zoned gabbroic hosted by the 1.8 Ga mafic-ultramafic Hamn intrusion, Northern Norway, with an aim to improve our understanding of pri...

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1968

Journal: :Frontiers in Earth Science 2021

Plutonic rocks such as gabbros provide information on magmatic and tectonic processes which occur beneath a mid-ocean rift axis well the formation of oceanic crust. Igneous rocks, reported from Red Sea Rift valley, have been limited to extrusive basalts so far. The only deeper crustal found in area are flanks interpreted late-stage continental magmatism. Here, we present geochemistry first reco...

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1977

Journal: :Geological Journal 2022

The Ghohroud granitoids (GG), containing mafic microgranular enclaves (MMEs) are located in the central part of Urumieh-Dokhtar Magmatic Arc (UDMA) Iran. They associated with subduction-related magmatism Alpine-Himalayan orogenic belt. GG comprised a variety intermediate and felsic rocks, including tonalite, granodiorite, granite, diorite porphyry monzodiorite. MMEs gabbroic tonalite compositio...

Journal: :Water 2023

Morocco has an important geothermal potential materialized by its several thermal springs which constitute essential surface indicator. These are dispersed throughout the country and present in every major structural domain. However, a significant amount is concentrated northern northeastern areas. Associated with great hydrothermal system of eastern Morocco, spring Goutitir emerges Meso-Cenozo...

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