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
Halla, Jaana
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Metasedimentary Metatexites with Trondhjemitic Leucosomes from NE Sicily: Another Example of Prograde Water-fluxed Melting in Collisional Belts [PDF]
Geosciences, 2020 Trondhjemitic leucosomes, hosted in late Variscan metasedimentary migmatites from the upper amphibolite-facies basement of the north-eastern Peloritani Mountains (southern Italy), have petrographic and geochemical features consistent with their origin as near-pure melts derived from in situ water-fluxed melting of their paragneiss host-rocks ...
Fiannacca, Patrizia +1 more
openaire +2 more sources
Procesos anatécticos (LP-HT) y heterogeneidad litológica en el Complejo Migmatítico de Mindelo (NW Portugal) [PDF]
, 2014 The Mindelo Migmatitic Complex crops out in the coastal zone north of Porto (Portugal) and consists of a set of migmatitic and granitic lithologies. Field relationships, petrography, geochemistry and isotopic signature of the various lithologies allow ...
A. Dória +17 more
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Syn-collisional channel flow and exhumation of paleoproterozoic High Pressure rocks in the Trans-North China Orogen: the critical role of partial-melting and orogenic bending [PDF]
, 2011 International audienceWithin the paleoproterozoic Trans-North China Orogen, the High-Pressure Belt (HPB) is made of high-pressure (~ 15 kbar) mafic granulites hosted in migmatitic gneisses.
Augier, Romain +4 more
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Extreme extension across Seram and Ambon, eastern Indonesia: Evidence for Banda slab rollback [PDF]
, 2013 The island of Seram, which lies in the northern part of the 180°-curved Banda Arc, has previously been interpreted as a fold-and-thrust belt formed during arc-continent collision, which incorporates ophiolites intruded by granites thought to have been ...
Hall, Robert +2 more
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The South Millevaches Middle Carboniferous crustal melting and its place in the French Variscan Belt [PDF]
, 2009 International audienceSeveral episodes of crustal melting are now well identified in the Variscan French Massif Central. Middle Devonian (ca 385-375 Ma) migmatites are recognized in the Upper and Lower Gneiss Units involved in the stack of nappes.
Be Mezeme, Eugène +4 more
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Middle Carboniferous crustal melting in the Variscan Belt: New insights from U-Th-Pbtot. monazite and U-Pb zircon ages of the Montagne Noire Axial Zone (southern French Massif Central) [PDF]
, 2010 International audienceIn France, the Devonian-Carboniferous Variscan orogeny developed at the expense of continental crust belonging to the northern margin of Gondwana. A Visean-Serpukhovian crustal melting has been recently documented in several massifs.
Be Mezeme, Eugène +4 more
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Tectonometamorphic evolution of Seram and Ambon, eastern Indonesia:Insights from ⁴⁰Ar/³⁹Ar geochronology [PDF]
, 2016 The island of Seram, eastern Indonesia, experienced a complex Neogene history of multiple metamorphic and deformational events driven by Australia–SE Asia collision.
Forster, M.A. +3 more
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Three-dimensional distribution of primary melt inclusions in garnets by X-ray microtomography [PDF]
, 2018 open6X-ray computed microtomography (X-mu CT) is applied here to investigate in a non-invasive way the three-dimensional (3D) spatial distribution of primary melt and fluid inclusions in gamets from the metapeitic enclaves of El Hoyazo and from the ...
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Contrasted tectonic styles for the Paleoproterozoic evolution of the North China Craton. Evidence for a ~2.1 Ga thermal and tectonic event in the Fuping Massif [PDF]
, 2008 International audienceStructural analysis along with 40Ar–39Ar and U–Pb datings in the Fuping massif provide new insight into the evolution of the eastern part of the Trans-North China Belt (North China Craton), from 2.7 Ga to 1.8 Ga.
Bruguier, Olivier +4 more
core +2 more sources