MAGNETIC SUSCEPTIBILITY CHANGES CORRELATED WITH PALEOENVIRONMENTAL AND LITHOLOGICAL CHANGES, WITHIN BOREHOLE CORES ON EITHER SIDES OF THE KALAMAKI-ISTHMIA FAULT IN CORINTH CANAL

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Published: Jul 27, 2016
DOI: https://doi.org/10.12681/bgsg.11706
Keywords:
Benthic foraminifera active faulting Corinth gulf Saronic Gulf
A. Pallikarakis
Laboratory Mineralogy - Geology, Department of Natural Resources Management & Agricultural Engineering, Agricultural University of Athens
I. Papanikolaou
Laboratory Mineralogy - Geology, Department of Natural Resources Management & Agricultural Engineering, Agricultural University of Athens
M. Triantaphyllou
Hist. Geology-Paleontology Department, Faculty of Geology and Geoenvironment, National and Kapodistrian University of Athens
C. Grützner
Institute of Neotectonics and Natural Hazards, RWTH Aachen University
G. Migiros
Laboratory Mineralogy - Geology, Department of Natural Resources Management & Agricultural Engineering, Agricultural University of Athens
K. Reicherter
Institute of Neotectonics and Natural Hazards, RWTH Aachen University
J. Mason
Institute of Neotectonics and Natural Hazards, RWTH Aachen University
S. Schneiderwind
Institute of Neotectonics and Natural Hazards, RWTH Aachen University
Abstract

Τhe most important active fault that intersects the eastern tip of Corinth Canal,the Kalamaki-Isthmia fault, is studied in detail, involving data analysis from nine boreholes, magnetic susceptibility measurements within boreholes and paleoenvironmental interpretations. Samples taken from boreholes were analysed and paleoenvironmental changes in the sequence are described. We correlate magnetic susceptibility (MS) measurements with paleoenvironmental and lithological alternations within the boreholes. We have ascribed low MS values to marine highstand deposits and high MS values to lowstand terrestrial deposits. Glacioeustatic sea level changes and tectonic movements have led to a very complicated lithosedimentary pattern that involves subaerial exposure, fluvialterrestrial, lagoonal, shallow marine environments and possibly even some lake sediments. Our results indicate that the Kalamaki fault is active and has a low slip rate of 0.05±0.02 mm/yr.

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  • Structural Geology
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