Results 91 to 100 of about 8,012 (220)

Two metamorphic cycles recorded by monazite in eclogite-facies gneisses (Southern Armorican Massif, France): A Cambro-Ordovician continental crust involved in eo-Variscan subduction

BSGF - Earth Sciences Bulletin
We present U-Th/Pb data obtained for xenotime and monazite from the polycyclic eclogite-facies para- and ortho-gneisses of the Les Essarts Unit (Vendée, southern Armorican Massif, France), which have recorded an HT-LP cycle ending with a first ...
Bosse Valérie, Godard Gaston, Devidal Jean Luc, Mallens Julie, Shea Thomas   +4 more
doaj   +1 more source

Anatomy of Rift‐Segmenting Transfer Zones: New Insights From the 3D Integrated Interpretation of the Southeastern Sector of the Basque‐Cantabrian Basin and the Pamplona Fault (Pyrenees, N Spain)

Basin Research, Volume 38, Issue 1, January–February 2026.
An updated view of the southern part of the Cantabrian‐Pyrenean junction through a 3D geological model shows the first conclusive evidence for the ~65 km‐wide diffuse Pamplona transfer zone linking the Basque‐Cantabrian and Mauleon segments of the Pyrenean rift. This transfer zone also affected the style of deformation and configuration of the Pyrenean
Cristina Bravo, Juan C. Larrasoaña, Juan I. Baceta   +2 more
wiley   +1 more source

U-Pb zircon and monazite geochronology of Variscan magmatism related to syn-convergence extension in Central Northern Portugal [PDF]

, 2005
The Viseu area is located in the Central Iberian Zone of the Iberian Variscan Belt and hosts numerous post-thickening, collision-related granitoids intruded into upper and middle crustal levels.
Acciaioli, Azevedo, B. Valle Aguado, Behr, Behrmann, Black, Burg, Burg, Carrington da Costa, Chaminé, Dallmeyer, Davies, Dias, Díez Balda, Díez Balda, Escuder Viruete, Farias, Ferreira, Finger, Holdaway, Iglesias, J. Nolan, J.R. Martínez Catalán, Julivert, Krogh, Krogh, Luth, M.R. Azevedo, Noronha, Pinto, Priem, Rey, Ribeiro, Ribeiro, Rottura, Schaltegger, Schulmann, Stacey, Sylvester, Teixeira, Thirlwall, Thompson, U. Schaltegger, Valle Aguado, Valle Aguado, Watkins, Watkins, Wickham, Yardley, Ábalos   +49 more
core   +2 more sources

A geological fence diagram for England and Wales [PDF]

, 2012
This report contains a brief description of the data and methodology used to compile the National Geological Fence Diagram (NGFD). The NGFD comprises a network of intersecting geological cross-sections covering England and Wales, to a minimum depth of
Ambrose, K., Barron, A.J.M., Hopson, P.M., Mathers, S.J., Myers, A.H., Schofield, D.I., Terrington, R.L., Waters, C.N.   +7 more
core  

Tectonostratigraphic terranes and zones juxtaposed along the Mid-Hungarian Line: their contrasting evolution and relationships [PDF]

, 2010
The Mid-Hungarian (or Zagreb-Zemplin) Line of WSW–ENE strike divides the Pannonian basement into two mega-units, the Tisia Composite Terrane in the SE and the ALCAPA Composite Terrane in the NW. They became juxtaposed no earlier than the Middle Miocene
Brezsnyánszky, Károly, Buda, György, Haas, János, Harangi, Szabolcs, Kovács, Sándor   +4 more
core   +1 more source

Age and provenance of mica-schist pebbles from the Eocene conglomerates of the Tylicz and Krynica Zone (Magura Nappe, Outer Flysch Carpathians)

Geologica Carpathica, 2016
During the Łate Cretaceous to Palaeogene, the Magura Basin was supplied by clastic material from source areas situated on the northern and southern margins of the basin, which do not outcrop on the surface at present.
Oszczypko Nestor, Salata Dorota, Konečný Patrik   +2 more
doaj   +1 more source

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, Cocherie, Alain, Faure, Michel, Melleton, Jérémie, Rossi, Philippe   +4 more
core   +3 more sources

The composite Sierra Bermeja Pluton (southern Iberian Massif): science, heritage and geoconservation

Journal of Maps, 2019
The Sierra Bermeja Pluton (∼60 km2 surface area) exemplifies a type of controversial granites of the Iberian Massif (European Variscan Belt), the cordierite-bearing ‘Serie Mixta’ (mixed series) monzogranites.
Jon Errandonea-Martin, Fernando Sarrionandia, Josu Junguitu, Manuel Carracedo-Sánchez, Luis Eguíluz, José Ignacio Gil Ibarguchi   +5 more
doaj   +1 more source

Oligo-Miocene thinning of the Beni Bousera peridotites and their Variscan crustal host rocks, Internal Rif, Morocco† [PDF]

, 2015
International audienceDeciphering Variscan versus Alpine history in the internal Rif system is a key to constraining the tectonic evolution of the Alboran domain and hence the geodynamics of the western Mediterranean system during the Cenozoic.
Afiri, Abdelkhaleq, Essaifi, Abderrahim, GUEYDAN, Frédéric, Paquette, Jean-Louis, Pitra, Pavel, Poujol, Marc   +5 more
core   +4 more sources

Variscan Plutonism in the Geodynamic Evolution of the Central Iberian Zone of Portugal: Castelo Branco Pluton as Another Piece of the Puzzle

Geosciences
A multidisciplinary analysis of the Pennsylvanian Castelo Branco pluton of Central Iberian Zone (Iberian Variscan belt) was made, focusing on its magnetic behavior and fabric, microstructures, microfractures, and radiometric and gravimetric anomalies ...
Cláudia Cruz, Helena Sant’Ovaia, Helena C. B. Martins, Isabel M. H. R. Antunes, Armando Rocha, Fernando Noronha   +5 more
doaj   +1 more source