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Integrated nonseismic geophysical studies to assess the site effect of the EUROSEISTEST area in Northern Greece

Acronym: IGSEA, PERG03-GA-2008-230915 {REF RTD REG/T.2 (2008)D/596232}

Host: Institute of Geophysics and Meteorology (IGM), University of Cologne - Germany
Partner: Institute of Engineering Seismology and Earthquake Engineering (ITSAK), Thessaloniki ? Greece

Abstract:
IGSEA addresses primarily topics out of the main scientific area such as Geophysics, Tectonics, and Seismology in combination with Earthquake Engineering, Engineering Seismology and building-soil & soil-water processes through the interaction between geophysicists and civil engineers. This project aims to assess site effects in the surrounding area of the EUROSEISTEST site by means of low-cost integrated nonseismic geophysical methods that are capable of detecting vertical geotectonic boundaries and fault zones with high accuracy and are able to confine and improve one of the first 3D resistivity inversion models of the area. The project will benefit from the use of state of the art devices and techniques which allow for a comprehensive view inside the inner structure of the basin. Through the implementation of hydrogeophysical and hydrogeological aspects we believe to significantly support the waveguide propagation modelling process of researcher and civil engineers in Greece and Europe who are working on strong motion data.


2D resistivity (Berdichevsky Invariant) cross section of profile 1 together with VLF and SP data. Possible fault locations are presented with dashed lines and assumed basement topography with red lines (Gurk et al., 2008).


Gurk, M., Savvaidis, M. Bastani  (2008) «Tufa Deposits in the Mygdonian Basin (Northern Greece) studied with RMT/CSTAMT, VLF & Self-Potential » in O. Ritter,  H. Brasse (eds): Protokoll über das Kolloquium: Elektromagnetische Tiefenforschung, in in Hotel Maxi?ky, D??ín, Czech Republic, 1-5.Oct. 2007


IGSEA magnetic survey (April 2009):

First results of the magnetic field survey during April 2009 showing the predominant Serbomacedonian strike of the basement structure. Nevertheless, the Mygdonian Basin around the EUROSEISTEST is characterized by a more complex 3D anomaly pattern.

 

 

Geological Setting and site location for the magnetic field measurements

 

 

 Total magnetic field anomaly of the Mygdonian Basin