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North-south transfer zones and paleo-morphological reconstruction of the Xylokastro area (Corinth Gulf, Greece) |
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| Authors: | Joachim Place Yves Graud Marc Diraison Laurence Warr |
| Institution: | aÉcole et Observatoire des Sciences de la Terre, Institut de Physique du Globe de Strasbourg, UMR 7516, 1 rue Blessig, F-67084 Strasbourg Cedex, France bÉcole et Observatoire des Sciences de la Terre, Centre de Géochimie de la Surface, UMR 7517, 1 rue Blessig, F-67084 Strasbourg Cedex, France |
| Abstract: | A large number of studies have documented the structural and sedimentary architecture of the Corinth Gulf, especially the major E–W trending normal faults important in accommodating the main extensional strain and associated growth of the Gilbert fan deltas. However, the role of several N–S oriented structures that crop out at the surface and are detectable at depth by seismic reflection and gravity surveys are not clearly understood. Based on new geological data, collected near Xylokastro, we describe the N–S oriented tectonic activity of this area. The mapped inland faults correspond to off-shore structures identified in re-interpreted seismic lines and appear to have acted as a major transfer zone during the opening of the Corinth Gulf. Reconstruction of the paleo-topography based on sedimentary facies and the environment of clay mineral formation suggest these transfer zones played an important role in controlling both local structural relief and depositional conditions of the Gilbert fan deltas. |
| Keywords: | Corinth Gulf Fault network Tilted blocks Transfer zone Clay minerals Slope deposits Geological analogue |
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