Results 1 to 10 of about 23,146 (213)
The TTG-Amphibolite Terrains of Arctic Fennoscandia: Infinite Networks of Amphibolite Metatexite-Diatexite Transitions [PDF]
Frontiers in Earth Science, 2020 The Earth’s early basaltic crust converted episodically into felsic TTG (tonalite-trondhjemite-granodiorite) crust by unknown tectonic processes. To contribute to the debate on the possible tectonic settings of TTGs, this article illustrates and explains
Jaana Halla
exaly +5 more sources
Fracture toughness of schist, amphibolite, and rhyolite from the Sanford Underground Research Facility (SURF), Lead, South Dakota [PDF]
Scientific Reports, 2022 The Cracked Chevron Notched Brazilian Disc (CCNBD) method was selected for Mode I fracture toughness tests on Poorman schist, Yates amphibolite, and rhyolite dikes from the EGS Collab site at the SURF in Lead, South Dakota.
Ben Jahnke +5 more
doaj +2 more sources
Frontiers in Earth Science, 2023 As a tectonic block of the Qinling Orogenic Belt, Central China, the South Qinling Orogen is generally believed to have had a tight affinity with the Yangtze Block during the Precambrian.
Juanjuan Kong +9 more
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Geochemistry, Geophysics, Geosystems, 2021 The presence of mélange at the subduction interface influences numerous geochemical and geophysical processes. However, the relationship between the timescales of mélange development, deformation, and resultant mass transport is poorly understood.
K. M. Harvey +5 more
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Geosciences, 2020 Geochemical characteristics of middle ocean ridge basalts (MORBs) testify partial melting of spinel-peridotite mixed with a few amounts of garnet-pyroxenite.
Vittorio Scribano, Serafina Carbone
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Metamorphic and metasomatic evolution of the Western Domain of the Karagwe-Ankole Belt (Central Africa) [PDF]
, 2020 The tectonometamorphic evolution of the Western Domain of the Karagwe-Ankole Belt, containing widespread granite-related W-Nb-Ta-Sn mineralization in pegmatites and hydrothermal quartz veins of Early Neoproterozoic age, is largely unknown.
Dewaele, Stijn +3 more
core +1 more source
Iraqi Geological Journal, 2023 The garnet amphibolite schist is associated with the gabbroic unit of the Mawat ophiolite, Kurdistan region, Northeast Iraq, in the imbricated zone of the Zagros orogenic belt.
Danar Omer +2 more
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Mineralogy and thermobarometry of metamorphic basement from the Kabul Block (Eastern Afghanistan) [PDF]
پترولوژی, 2019 The cratonic basement in the Kabul district is dominated by gneiss, migmatite, schist, and amphibolite and is characterized by extensive outcrops. Orthopyroxene and garnet are the index minerals of some of the gneisse, hence, they are considered as ...
Ali Mohammad Ramezani +3 more
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The electrical signature of rock samples exposed to hydrostatic and triaxial pressures
Annals of Geophysics, 2001 The electrical signature of sedimentary (carbonate) and crystalline rock samples was studied in hydrostatic and triaxial pressure experiments up to 300 MPa.
G. Nover, H. Heikamp
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mineralogy, the nature of magmatic and tectonic setting of amphibolite protolith from Gol Gohar iron ore deposit, Sirjan, Kerman [PDF]
پترولوژی, 2018 The Golgohar iron mine is located at 55 km southwest of Sirjan in the Sanandaj-Sirjan structural zone. The host rocks of the ore deposit include metamorphosed rocks in green schist and amphibolite facies.
Afsane Jafari +4 more
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