--> Abstract: Tectonic Signatures in a Ripidly Opening Rift: the Giant Gilbert Delta Systems of the Corinth Rift, Greece; #90063 (2007)

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Tectonic Signatures in a Ripidly Opening Rift: the Giant Gilbert Delta Systems of the Corinth Rift, Greece

 

Ford, Mary1, Sebastien Rohais2, Nicolas Backert3, Fabrice Malartre4, Edward A. Williams5 (1) Nancy School of Geology, France, Vandoeuvre lès Nancy, France (2) Institut Francais du Petrole, 92506 Rueil Malmaison Cedex, France (3) CRPG, Vandoeuvre lès Nancy, (4) ENSG-G2R, Vandoeuvre les Nancy, (5) CRPG, Vandoeuvre les Nancy, France

 

A new mapping of the central south coast of the Corinth Gulf shows that the syn-rift Plio-Pleistocene succession can be up to 3km thick and comprises 3 stratigraphic groups. The Lower Group is dominently alluvial, showing eastward transition into lacustrine deposits. The Middle Group is alluvial to deep water, containing giant Gilbert Deltas up to 800m thick that prograded predomiinantly northward. The Upper Group records sporadic and local sedimentation during late uplift of the south coast. Sedimentation was controlled by 7 major E-W normal fault arrays on which displacement was distributed in a complex fashion. The youngest and currently active faults are clustered along the south coast and below the Gulf itself. We present detailed internal stratigraphic architecture and facies distributions of 4 of the Giant Gilbert Deltas (Kerinitis, Vouraikos, Evrostini, Ilias) that were deposited in the hangingwalls of active normal faults. We discuss the relative roles of the principal controlling parameters, namely tectonics and climate.

 

AAPG Search and Discover Article #90063©2007 AAPG Annual Convention, Long Beach, California