Applicability of complex geophysical surveying in paleoseismic studies: three case studies from the Bohemian Massif

0487888 - ÚSMH 2018 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Štěpančíková, Petra - Tábořík, Petr - Hartvich, Filip - Stemberk, Jakub - Fischer, T. - Karousová, M. - Vilhelm, J. - Široký, J. - Špaček, P. - Blecha, V. - Pek, Josef - Rockwell, T. - Havaš, M.
Applicability of complex geophysical surveying in paleoseismic studies: three case studies from the Bohemian Massif.
Proceedings of the 7th International INQUA Workshop on Paleoseismology, Active Tectonics and Archaeoseismology (PATA Days) 30 May- 3 June 2016 Crestone, Colorado, USA. Vol. 7. Crestone: Crestone Science Center, 2016 - (McCalpin, J.; Gruetzner, C.), s. 238-241. ISBN 978-0-9974355-2-8.
[International INQUA Meeting on Paleoseismology, Active Tectonics and Archeoseismology PATA 2016 /7./. Crestone (US), 30.05.2016-03.06.2016]
Grant CEP: GA AV ČR IAA300120905; GA ČR GAP210/12/0573; GA ČR(CZ) GC16-10116J
Institucionální podpora: RVO:67985891 ; RVO:67985530
Klíčová slova: geophysical survey * paleoseismology * Sudetic Marginal Fault * Upper Morava basin * Mariánské-Lázně Fault * Bohemian Massif
Obor OECD: Geology; Volcanology (GFU-E)

We present three case studies of paleoseismic surveys in the Bohemian Massif (Czech Republic) which were carried out in various geological environments. An extensive 2-D and 3-D geophysical survey preceded and accompanied the trenching. The trenching sites are situated on the faults reactivated in the Quaternary, in north-eastern Bohemian Massif on the Sudetic Marginal fault, at the contact of Bohemian Massif and the Carpathian Foredeep in the east (Holešov fault), and in the western Bohemian Massif on the Mariánské-Lázně fault in the Cheb basin. Combining aleoseismic trenching with geophysical surveys enabled verification and correlation of the results of geophysics with the lithology exposed in the trenches. The methods included geoelectrical surveying, electromagnetic surveying, shallow seismics and gravimetry. They enabled to trace the faults laterally and to the depth, to map the sediments offset by the faults. The studies from various geological environments show that the applicability of a specific geophysical method varies depending on the site conditions.
Trvalý link: http://hdl.handle.net/11104/0282524