Results 101 to 110 of about 823 (158)

Geochemistry and Petrogenesis of Permo–Triassic Silicic Volcanic Rocks from the Circum-Rhodope Belt in the Vardar/Axios Zone, Northern Greece: An Example of a Post-Collision Extensional Tectonic Setting in the Tethyan Realm

Geosciences
The western side of the Vertiskos Unit crystalline basement in northern Greece is fringed by a Permo–Triassic low-grade metamorphic volcano-sedimentary complex that belongs to the Circum-Rhodope Belt (CRB), which is an important part of the Vardar/ Axios
Argyro Asvesta
doaj   +1 more source

An investigation into the controls of granite plutonism in the Sierra da Freita region, Northern Portugal

, 2012
The Serra da Freita region of north central Portugal was chosen for study as it displays the complex relationships between regional structure, plutonism, regional and contact metamorphism typical of this part of Iberia.
Reavy, Reginald John
core  

Coeval interaction between magmas of contrasting composition (Late Carboniferous-Early Permian Santa Eulália-Monforte massif, Ossa-Morena Zone): field relationships and geochronological constraints

Geologica Acta, 2017
The Santa Eulália-Monforte massif is a post-kinematic Late Carboniferous-Early Permian calc-alkaline composite massif (LC-EP) located in the Ossa-Morena Zone (OMZ, Portugal).
M.F. PEREIRA, C. GAMA, C. RODRÍGUEZ
doaj  

Alpine stacking of two Variscan granite blocks recognised from mineral stabilities, age and structural data (Western Carpathians)

This study presents petrological, geochemical, geochronological and structural data that serve to identify two different Alpine tectonic units formed from the Variscan-aged Tribeč-Zobor granitic rocks.
Barnes, Christopher J.,, Majka, Jaroslaw,, Broska, Igor,, Yi, Keewook,, Madaras, Jan,, Kurylo, Sergii,, Kubis, Michal,, Petrik, Igor,, Vojtko, Rastislav,   +8 more
core   +1 more source

Geothermal Power Generated from UK Granites (GWatt)

, 2021
Deep geothermal systems have the potential to provide sustainable, reliable, carbon-free power for the UK. However, exploitation of the UK deep thermal resource is held back by knowledge gaps about permeability and fluid/heat flow within fractured hot ...
Rochelle, Chris, Yeomans, Chris, den Hartog, Sabine, Busby, Jon, Eyre, Matthew, Shail, Robin, Law, Ryan, Geiger, Sebastian, Arnold, Daniel, Kilpatrick, Andrew, Ledingham, Pete, Carroll, Caroline, Busch, Andreas; id_orcid   +12 more
core  

Variations ia Variscan Granites [PDF]

Nature, 1973
openaire   +1 more source

Petrogenetic link between metasedimentary rocks, migmatites and granitoids in the Variscan basement of the Pontgibaud area, French Massif Central – implications for the crustal structure

BSGF - Earth Sciences Bulletin
The architecture of the crust in the French Massif Central (FMC) is described as a nappe stack composed, from top to bottom, of the Upper Gneiss Unit (UGU), the Lower Gneiss Unit (LGU), and the Para-Autochthonous Unit (PAU), which are intruded by ...
Passos do Carmo Caliméria, Vanderhaeghe Olivier, Laurent Oscar, Berger Julien, Bellanger Mathieu, Leisen Mathieu, Chmeleff Jérôme   +6 more
doaj   +1 more source

Petrogenesis of highly fractionated I-type peraluminous granites: La Pedriza pluton (Spanish Central System)

Geologica Acta, 2010
The La Pedriza pluton stands out as the most extensively fractionated granite (Rb lt; 629; Sr lt; 2 and Ba lt; 2 ppm) of the Spanish Central System Batholith.
C. PÉREZ-SOBA, C. VILLASECA
doaj  

The Val Biandino Intrusive Suite (central Southern Alps, N Italy): new geochronological and geochemical data on the Early Permian magmatic activity in the Southalpine Domain

Swiss Journal of Geosciences
The Early Permian in the present-day Europe area was a time when a major tectonic shift occurred, leading from the tectonic collapse of the Variscan orogeny to the crustal extension and thinning that characterized the Early Permian times.
Stefano Zanchetta, Chiara Crippa, Andrea Zanchi, Chiara Montemagni   +3 more
doaj   +1 more source

Li-bearing pegmatites as residual melts of P-rich Variscan granites from the Central Iberian Zone

, 2018
Trabajo presentado en la European Geosciences Union General Assembly, celebrada en Viena (Austria), del 8 al 13 de abril de 2018The Central Iberian Zone (CIZ) corresponds to the innermost region of the Variscan Iberian Belt.
Lima, A., Gil Crespo, Pedro-Pablo, Garate-Olave, I., Pesquera, Alfonso, Villaseca, Carlos, Roda Robles, Encarnación, Vieira, Romeu   +6 more
core