MORPHOTECTONICS OF THE PSATHOPYRGOS ACTIVE FAULT, WESTERN CORINTH RIFT, CENTRAL GREECE

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Publiée : Jun 8, 2007
DOI : https://doi.org/10.12681/bgsg.16657
Ch. Tsimi
Institute of Geodynamics, National Observatory of Athens
A. Ganas
Institute of Geodynamics, National Observatory of Athens
N. Soulakellis
Department of Geography, University of the Aegean
O. Kairis
Agricultural University of Athens
S. Valmis
Agricultural University of Athens
Résumé

The study area is located on the western part of the Gulf of Corinth which is considered as a paradigm of an active rift system in Greece. This rift was formed by normal slip on big faults which extend the crust of the Earth in the N-S direction. The morphotectonic indices (hypsometric curve, hypsometric integral, drainage basin asymmetry, ratio of valley floor width to valley height) have been estimated using the 20-m digital elevation model of this area and the ARC software. The normal faults of the study area have been extracted by use of a DEM mosaic of 20-m pixel size, satellite images from Landsat 7 ETM+ and SRTM 90m. Our results highlight the recent activity of the Psathopyrgos normal fault on the basis of a series of morphotectonic evidence and suggest the existence of a single fault segment for a distance of 16 km.

Article Details
  • Rubrique
  • Tectonic- Dynamic- Applied Geology
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