Results 21 to 30 of about 12,234 (224)

Pressure-temperature conditions and significance of Upper Devonian eclogite and amphibolite facies metamorphisms in southern French Massif central

BSGF - Earth Sciences Bulletin, 2020
The southwestern French Massif central in western Rouergue displays an inverted metamorphic sequence with eclogite and amphibolite facies units forming the top of the nappe stack.
Benmammar Anissa, Berger Julien, Triantafyllou Antoine, Duchene Stéphanie, Bendaoud Abderrahmane, Baele Jean-Marc, Bruguier Olivier, Diot Hervé   +7 more
doaj   +1 more source

Mineralogical And Gemological Characteristics Of Metaophiolite Hosted Corundum (Malatya-Türkiye)

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
The corundum is found in the rocks of the Berit metaophiolite in Eastern Anatolia, near Doğanşehir a province of Malatya. Metaophiolitic rocks consist mainly of garnet metagabbro, granulite, amphibolite, mylonitic amphibolite, garnet amphibolite ...
Fikret İşler, Meltem Gürbüz, Murat Hatipoğlu, Ayten Öztüfekçi Önal, İlkay Kaydu Akbudak, Zeynel Başıbüyük   +5 more
doaj   +1 more source

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

Iraqi 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

Petrography, Geochemistry and Petrogenesis of Maru Amphibolite, Northwestern Nigeria

, 2015
Amphibolite occurrence in part of Maru schist belt, northwestern Nigeria was studied petrographically and geochemically inorder to establish its precursor and infer its geotectonic environment.
Oke, SA
core   +1 more source

Late Cambrian N-MORB-Type Amphibolite in Central Jilin Province, NE China: Implications for Subduction Initiation in the Paleo-Asian Ocean

Geosciences
The Shitoukoumen area in central Jilin Province, NE China, preserves a Permian blocks-in-matrix assemblage containing pre-Permian mafic and sedimentary blocks that provides an important record of the Paleozoic evolution of the eastern Paleo-Asian Ocean ...
Shengnan Sun, Zuozhen Han, Zhigang Song
doaj   +1 more source

An intrusive-like tectonic breccia in the archipelago of southwestern Finland [PDF]

Bulletin of the Geological Society of Finland, 1986
On an islet in the archipelago of southwestern Finland with metamorphic rocks belonging to the Svecofennian zone it is possible to follow in exposure for a distance of some metres the transition from a layered paragneiss with amphibolite bands to a ...
N. Edelman, L. Bergman, B. Lindberg
doaj   +1 more source

Geology of the Zicavo Metamorphic Complex, southern Corsica (France)

Journal of Maps, 2023
In this study, we investigated the Zicavo Metamorphic Complex (southern Corsica), which is part of the innermost Axial Zone of the Corsica-Sardinia Variscan belt.
Lorenzo Dulcetta, Michel Faure, Philippe Rossi, Gabriele Cruciani, Marcello Franceschelli   +4 more
doaj   +1 more source

Amphibolite-facies retrograde metamorphism of the Zhujiachong eclogite, SE Dabieshan: 40Ar/39Ar age constraints from argon extraction using UV-laser microprobe, in vacuo crushing and stepwise heating

, 2010
The Zhujiachong eclogite in the south-eastern Dabieshan ultra-high-P terrane has been overprinted during retrograde metamorphism, with the development of garnet-amphibolite mineral assemblages in most rocks in the outcrop.
Qiu, H.N., Yun, Y.B., Zhao, L.H., Xu, Y.G., Xu, Y. -G., Brouwer, F. M., Wijbrans, J.R., Yun, J. -B., Qiu, H. -N., Brouwer, F.M.; id_orcid, Zhao, L. -H., Wijbrans, J. R., J.-B. YUN, F. M. BROUWER, L.-H. ZHAO, Y.-G. XU, H.-N. QIU, J. R. WIJBRANS   +17 more
core   +1 more source

Litho-Geochemistry, Petrogenesis and Mineralisation Potential of Amphibolite-Schists Around Gadaeregi Area, North-Central Nigeria [PDF]

, 2018
This study investigated the geochemical compositions of Amphibolite-schists around Gadaeregi area of North-Central Nigeria to establish the petrogenetic evolution, geotectonic setting and associated potential mineralization.
Olose, Muhammed Akimi, Alaku, Idzi Orame, Iyah, Robert Obeka, Chaanda, Mohammed Suleiman, Omanayin, Yunusa Adinoyi, Abdulkadir, Hamidu   +5 more
core   +1 more source

The amphibolite at Chibuluma Mine Zambia [PDF]

, 1969
Chibuluma Mine is situated on the southern flank of the Nkana-Chambishi basin in the central section of the Zambian Copperbelt. The amphibolite at Chibuluma Mine occurs exclusively in the Upper Roan Group sediments overlying the economically important ...
Thomson, Iain Dennis
core   +1 more source