Results 31 to 40 of about 1,858 (217)

Early Permian age of granite pebbles from an Eocene or Oligocene conglomerate of the Internal Rif belt (Alboran domain, Morocco): hypothesis on their origin

BSGF - Earth Sciences Bulletin, 2018
Granite pebbles from an Eocene or Oligocene conglomerate lying on a Ghomaride nappe of the Internal Zones of the Rif belt (Alboran domain, Morocco) have been dated by U/Pb on zircon at 281 Ma.
Olivier Philippe, Paquette Jean-Louis
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

Cambrian magmatism, Variscan high-grade metamorphism and imposed greenschist facies shearing in the Central Sredna Gora basement units (Bulgaria)

Geologica Carpathica, 2015
Gneisses from the deep structural levels of the European Variscan Belt are well exposed in the Central Sredna Gora in Bulgaria. In general, migmatites predominate, but unmigmatized domains (or domains with incipient migmatization) are also documented in ...
Lazarova Anna, Naydenov Kalin, Petrov Nikolai, Grozdev Valentin   +3 more
doaj   +1 more source

Metasedimentary Metatexites with Trondhjemitic Leucosomes from NE Sicily: Another Example of Prograde Water-fluxed Melting in Collisional Belts

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
Patrizia Fiannacca, Rosolino Cirrincione
doaj   +1 more source

Deciphering the nature and age of the protoliths and peak P−T conditions in retrogressed mafic eclogites from the Maures-Tannneron Massif (SE France) and implications for the southern European Variscides

BSGF - Earth Sciences Bulletin, 2023
We present new constraints on the age, nature, and tectonic setting of mafic eclogite protoliths from the Maures-Tanneron Massif, southern Variscan belt.
Jouffray Fabrice, Lardeaux Jean-Marc, Tabaud Anne-Sophie, Corsini Michel, Schneider Julie   +4 more
doaj   +1 more source

Interactions between thin- and thick-skinned tectonics at the northwestern front of the Jura fold-and-thrust belt (eastern France) [PDF]

, 2008
International audienceThis study investigates spatial and temporal interactions of thin- and thick-skinned tectonics in a classical foreland setting located at the front of the Jura fold-and-thrust belt in eastern France.
Schmid, Stefan, Madritsch, Herfried, Schmid, Stefan M., Fabbri, Olivier   +3 more
core   +1 more source

Geology of the Asinara Island (Sardinia, Italy)

Journal of Maps
Understanding how the lithosphere accommodates deformation along oblique convergent plate boundaries is an important issue for unveiling orogenic belt exhumation.
R. Carosi, C. Montomoli, D. Iacopini, A. Petroccia, M. Simonetti, G. Oggiano   +5 more
doaj   +1 more source

An Early Ordovician tonalitic–granodioritic belt along the Schistose-Greywacke Domain of the Central Iberian Zone (Iberian Massif, Variscan Belt)

, 2012
The Zarza la Mayor and Zarza de Montánchez tonalites and Arroyo de la Luz granodiorite are part of a tonalitic–granodioritic belt located along the Schistose-Greywacke Domain of the Central Iberian Zone.
Valverde Vaquero, Pablo María, Fernández González, M., Gallastegui, Gloria, Cuesta Fernández, A., Gerdes, Axel, Rubio Ordóñez, A., Corretgé, L. G.   +6 more
core   +1 more source

Paleofluid Fingerprint as an Independent Paleogeographic Correlation Tool: An Example from Pennsylvanian Sandstones and Neighboring Crystalline Rocks (Tisia Composite Terrane, S Hungary)

Geofluids, 2020
In the basement areas of the southern Pannonian Basin, Central Europe (Tisia Composite Terrane, Hungary), Variscan blocks are essential components. The existing paleogeographic reconstructions, however, are often unclear and contradictory.
Krisztián Fintor, Andrea Varga
doaj   +1 more source

Multistage development of a hydrothermal W deposit during the Variscan late-orogenic evolution: the Puy-les-Vignes breccia pipe (Massif Central, France)

BSGF - Earth Sciences Bulletin, 2021
The Puy-les-Vignes W deposit, located in the northwestern French Massif Central (FMC), is a rare occurrence of a wolframite-mineralized hydrothermal breccia pipe hosted in high-grade metamorphic gneisses.
Harlaux Matthieu, Marignac Christian, Mercadier Julien, Poujol Marc, Boiron Marie-Christine, Kouzmanov Kalin, Camacho Alfredo, Alikouss Saïda, Roméo Benjamin, Mouthier Bernard, Cuney Michel   +10 more
doaj   +1 more source