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TS7.6

Lithospheric and crustal dynamics of the Wilson Cycle: The Iberia case study
Convener: Mary Ford  | Co-Conveners: Frédéric Mouthereau , Julie Tugend , Antonio Villaseñor 
Orals
 / Fri, 28 Apr, 10:30–12:00  / Room G1
Posters
 / Attendance Fri, 28 Apr, 17:30–19:00  / Hall X2
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The geodynamic evolution of the Iberian plate and the associated rift systems and orogens (Pyrenees, Rif, Betics) are currently the focus of much research and debate. New geophysical data, notably from seismological experiments, combined with field-based studies have provided new images of the lithosphere structure of Iberia and its margins. New geochronology, thermochronology, isotope, paleoaltitude and paleotemperature data combined with numerical modeling are improving contraints on mass flux through these systems. These multidisciplinary data have all resulted in major advances in our understanding of extensional systems, inversion of rifted margins, deep orogen structure, source-to-sink in orogens and many other aspects of basin and orogen dynamics as part of the Wilson cycle. Despite, or perhaps because of, this growing volume of data, numerous opposing plate kinematic reconstructions are currently proposed for Iberia during Mesozoic and Cenozoic times. The problem needs to be considered in the larger context of the Africa/Arabia and Eurasia convergence zone.

We feel it is timely to organise a session to debate the following themes specifically focusing on the Iberian plate:
(1) Timing and tectonic evolution of its rifted margins,
(2) Sediment transfer and landscape evolution from the Mesozoic to the present day,
(3) The role of inheritance in margin inversion and orogenesis,
(4) Post-orogenic topographic evolution and its relation to mantle dynamics,
(5) Plate kinematic reconstructions
(6) Constraints on crustal and lithospheric structure

We invite contributions that address one or more of these topics using new geophysical data, seismological constraints, numerical geodynamic modeling, as well as field-based studies, incorporating new sedimentological, structural or geomorphological data, and associated thermochronology, geochronology, geochemistry studies.