Results 1 to 10 of about 10,884 (225)

Petrology and Au-PGE investigation dataset of the recent alluvial sediments from the Ngaye River watershed, northern Cameroon [PDF]

open access: yesData in Brief, 2023
Petrological data of the recent alluvial sediments from the Ngaye River watershed in the Northern Cameroon were used in order to infer their origin with the probable source rocks as gneisses, amphibolites, and granites; and to investigate the occurrence ...
Paul-Desire Ndjigui   +2 more
doaj   +2 more sources

The TTG-Amphibolite Terrains of Arctic Fennoscandia: Infinite Networks of Amphibolite Metatexite-Diatexite Transitions [PDF]

open access: yesFrontiers 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
doaj   +3 more sources

Magnetic anisotropy of a sub-ophiolitic metamorphic sole (Mersin ophiolite, Türkiye)

open access: yesBulletin of the Mineral Research and Exploration, 2023
The Mersin ophiolite of southern Turkey is a well-exposed, Late Cretaceous, Neo-Tethyan suprasubduction zone ophiolite. It is underlain by metamorphic sole rocks inferred to have formed at the top of a down-going plate during subduction.
Osman Parlak   +4 more
doaj   +1 more source

Petrogenesis of Amphibolite/Hornblendite Dikes in Qala-Diza Area, Iraqi Kurdistan Region

open access: yesIraqi Geological Journal, 2023
The amphibolite and hornblendite dikes occur as part of the igneous complexes of Bulfat Ophiolite within the Zagros Suture Zone, NE Iraq. The igneous complex is part of the upper allochthonous ophiolite terrane within the second unit of the ...
Jolyana Petros, Nihad Karo
doaj   +1 more source

Metagabbros, metasyenites and related rocks in the Outokumpu assemblage, east Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1992
A diverse group of minor intrusive rocks in the early Proterozoic Outokumpu assemblage of eastern Finland include metagabbro, hornblendite, amphibolite, pyroxenite, syenite and chloritized dykes.
A.F. Park
doaj   +1 more source

High pressure garnet amphibolites in ophiolitic mélange from the Changning-Menglian suture zone, southeast Tibetan Plateau: P-T-t path and tectonic implication

open access: yesChina Geology, 2021
: The garnet amphibolites from the newly identified Wanhe ophiolitic mélange in the Changning-Menglian suture zone (CMSZ) provide a probe to elucidate the evolution of the Triassic Palaeo-Tethys.
Zheng-bin Gou   +3 more
doaj   +1 more source

Fahlbands of the Keret archipelago, White Sea: the composition of rocks and minerals, ore mineralization

open access: yesЗаписки Горного института, 2020
This paper presents a complex mineralogical and geochemical characteristic (based on SEM-EDS, ICP-MS analysis) of the fahlband rocks of the Kiv-Guba-Kartesh occurrence within the White Sea mobile belt (WSMB).
Laysan I. Salimgaraeva   +3 more
doaj   +1 more source

Petrology of the Garnet Amphibolites from the Tejići Village - Povlen Mt., Western Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2002
Different metamorphic rocks discovered near the village of Tejići (Povlen Mt., Western Serbia) represent members of the olistostrome mélange metamorphosed during the obduction/emplacement of some still hot ultramafic body. They occupy the area of about 2
Srećković-Batoćanin Danica R.   +2 more
doaj   +1 more source

Metamorphic and metasomatic evolution of the Western Domain of the Karagwe-Ankole Belt (Central Africa) [PDF]

open access: yes, 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

Metamorphic evolution and $P$–$T$ path of the Posada Valley amphibolites: new insights on the Variscan high pressure metamorphism in NE Sardinia, Italy

open access: yesComptes Rendus. Géoscience, 2021
The Posada Valley amphibolites in the inner zone of Variscan Sardinia are characterized by garnet porphyroblasts containing epidote, titanite, quartz, clinopyroxene, amphibole, and plagioclase concentrated in the garnet core.
Scodina, Massimo   +2 more
doaj   +1 more source

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