Tectonic motions in oblique subduction forearcs: insights from the revisited middle and upper Pleistocene deposits of Rhodes (Greece)

Published on 2018-08-26T22:47:59Z (GMT) by
The sedimentary model of coastal deposits along eastern Rhodes for the last 2 Ma is refined and gains accuracy. New field investigations and U/Th datings of Spondylus bivalve shells, combined with micropalaeontological and sedimentological data, allow the recognition of four synthems separated by major erosional surfaces, among which two are evidenced in this study. This new model allows the identification and quantification of vertical movements recorded by the studied exposures. The history of these vertical motions is characterized by two uplift and two subsidence periods. At the regional scale of the eastern Hellenic forearc, such an evolution is unique. We interpret it as reflecting the individualization of Rhodes as a single tectonic block during the increasing trench bending that is accommodated by an increasing curvature of the forearc during the last 2 Ma.

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Cornée, Jean-Jacques; Quillévéré, Frédéric; Moissette, Pierre; Fietzke, Jan; López-Otálvaro, Gatsby Emperatriz; Melinte-Dobrinescu, Mihaela; et al. (2018): Tectonic motions in oblique subduction forearcs: insights from the revisited middle and upper Pleistocene deposits of Rhodes (Greece). Geological Society of London. Collection.