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Interplay between central Atlantic and western Mediterranean kinematics during the Oligocene and early Miocene: a geodynamic point of view

Notícia | 05-02-2015

SEMINARIS DE LA FACULTAT DE GEOLOGIA I L'INSTITUT DE CIÈNCIES DE LA TERRA 'JAUME ALMERA'
Simultaneous large-scale tectonic events occurred in a wide area between the anti-Atlas and Adria during the Oligocene and the early Miocene. In the Atlas, extensional structures associated with the late Triassic - early Jurassic formation of the Atlas Rift were inverted by right-lateral transpression, forming a giant flower structure: the modern Atlas mountain belt. In the western Tethyan region, rapid back-arc rifting and spreading occurred along western Iberia, leading to fragmentation of the active margin, accelerated subduction of old Ligurian Tethys attached to Adria, and to the simultaneous formation of the Liguro-Provençal and Algerian oceanic basins. At the same time, spreading rates in the central Atlantic north of the Atlantis FZ increased considerably. It will be proved that such a combination of events was a consequence of geodynamic processes that occurred along the Africa - Eurasia plate boundary.

A càrrec de: Dr. Antonio Schettino (School of Science and Technology - Geology Division, Università di Camerino, Itàlia)
Dia: 05-02-2015
Hora: 12:00
LLoc: Sala d'actes de l'Institut de Ciències de la Terra Jaume Almera
Organització: Organitzat conjuntament CSIC-UB


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