Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisited

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dc.contributor.author Díez Fernández, Rubén
dc.contributor.author Arenas, Ricardo
dc.contributor.author Francisco Pereira, M.
dc.contributor.author Sánchez Martínez, Sonia
dc.contributor.author Richard, Albert
dc.contributor.author Martín Parra, Luis Miguel
dc.contributor.author Rubio Pascual, Francisco Javier
dc.contributor.author Matas, Jerónimo
dc.date.accessioned 2020-09-30T10:35:29Z
dc.date.available 2020-09-30T10:35:29Z
dc.date.issued 2016-08-11
dc.identifier.citation Earth-Science Reviews, v. 162, 269-292 es_ES
dc.identifier.issn 0012-8252
dc.identifier.uri http://hdl.handle.net/20.500.12468/442
dc.description.abstract An integrated interpretation of the late Paleozoic structural and geochronological record of the Iberian Massif is presented and discussed under the perspective of a Gondwana-Laurussia collision giving way to the Variscan orogen. Compressional and extensional structures developed during the building of the Variscan orogenic crust of Iberia are linked together into major tectonic events operating at lithosphere scale. A review of the tectonometamorphic and magmatic evolution of the Iberian Massif reveals backs and forths in the overall convergence between Gondwana and Laurussia during the amalgamation of Pangea in late Paleozoic times. Stages dominated by lithosphere compression are characterized by subduction, both oceanic and continental, development of magmatic arcs, (over- and under-) thrusting of continental lithosphere, and folding. Variscan convergence resulted in the eventual transference of a large allochthonous set of peri-Gondwanan terranes, the Iberian Allochthon, onto the Gondwana mainland. The Iberian Allochthon bears the imprint of previous interaction between Gondwana and Laurussia, including their juxtaposition after the closure of the Rheic Ocean in Lower Devonian times. Stages governed by lithosphere extension are featured by the opening of two short-lived oceanic basins that dissected previous Variscan orogenic crust, first in the Lower-Middle Devonian, following the closure of the Rheic Ocean, and then in the early Carboniferous, following the emplacement of the peri-Gondwanan allochthon. An additional, major intra-orogenic extensional event in the early-middle Carboniferous dismembered the Iberian Allochthon into individual thrust stacks separated by extensional faults and domes. Lateral tectonics played an important role through the Variscan orogenesis, especially during the creation of new tectonic blocks separated by intracontinental strike-slip shear zones in the late stages of continental convergence. es_ES
dc.description.sponsorship Departamento de Petrología y Geoquímica, Universidad Complutense de Madrid, España es_ES
dc.description.sponsorship Instituto de Geociencias, Consejo Superior de Investigaciones Científicas, España es_ES
dc.description.sponsorship Instituto de Geociencias, Universidad Complutense de Madrid, España es_ES
dc.description.sponsorship Instituto Dom Luiz, Universidade de Lisboa, Portugal es_ES
dc.description.sponsorship Escola de Ciências e Tecnologia, Universidade de Évora, Portugal es_ES
dc.description.sponsorship Instituto Geológico y Minero de España, España es_ES
dc.language.iso en es_ES
dc.publisher Elsevier es_ES
dc.relation CGL2012-34618 es_ES
dc.rights Acceso abierto es_ES
dc.subject European geodynamics es_ES
dc.subject Allochthonous complexes es_ES
dc.subject Iberian massif es_ES
dc.subject Paleozoic tectonics es_ES
dc.subject Pangea amalgamation es_ES
dc.title Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisited es_ES
dc.type Postprint es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.earscirev.2016.08.002 es_ES
dc.description.funder Ministerio de Economía y Competitividad, España es_ES
dc.identifier.doi https://doi.org/10.1016/j.earscirev.2016.08.002 es_ES
dc.coverage.spatialStudy Macizo Ibérico es_ES

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