REVIEW AND NEW DATA ON UPLIFT RATES AT THE W TERMINATION OF THE CORINTH RIFT AND THE NE RION GRABEN AREA (ACHAIA, NW PELOPONNESOS)

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Published: Jun 8, 2007
DOI: https://doi.org/10.12681/bgsg.16631
Keywords:
Tectonic geomorphology differential coastal uplift deformation rates active normal faults Corinth Gulf
N. Palyvos
Istituto Nazionale di Geofìsica e Vulcanologia, Sez. Sismologia e Tettonofìsica, Active Tectonics Group; Harokopio University, Geography Department
D. Sorel
Université Paris-Sud, Centre d'Orsay, Faculty of Geology
F. Lemeille
Institut de Radioprotection et de Surete Nucléaire, Seismic Hazard Division, Fontenay-aux-roses Cedex
M. Mancini
CNR -Istituto di Geologia Ambientale e Geo ingegneria
D. Pantosti
Istituto Nazionale di Geofìsica e Vulcanologia, Sez. Sismologia e Tettonofìsica, Active Tectonics Group
R. Julia
Institute of Earth Sciences Jaume Aimera
M. Triantaphyllou
National and Kapodistrian University of Athens, Faculty of Geology and Geoenvironment, Department of Hist. Geology - Paleontology
P. M. De Martini
Istituto Nazionale di Geofìsica e Vulcanologia, Sez. Sismologia e Tettonofìsica, Active Tectonics Group
Abstract

We review and present new geochronological data on the uplifted Middle-Late Pleistocene marine deposits at the western termination of the Corinth Rift and the Rion area. Geomorphological and geological observations define the general morphotectonic context of these deposits, which predicts a pattern of differential uplift. Uplift rate estimates based on previous geochronological data (ranging from 0.4 to 6 mm/yr) are discussed in the proposed morphotectonic context of differential uplift, together with estimates from new geochronological data. Based on the data available for post-MISl 1 marine deposits, we conclude that time-averaged uplift rates in the last 300-200 lea have been higher than ca. 1.8 mm/yr at the areas of faster uplift (e.g. Profus Elias, Ano Kastritsi). To define just how higher than 1.8 mm/yr they have been, and to cross-check the validity of very high uplift rate estimates (> 4 mm/yr) existing in the bibliography, more datings than those available are required.

Article Details
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  • Tectonic- Dynamic- Applied Geology
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