Paleosesimic study of the Sudetic Marginal Fault at the locality Bílá Voda (Bohemian Massif)

0371132 - ÚSMH 2012 RIV GR eng C - Conference Paper (international conference)
Štěpančíková, Petra - Nývlt, D. - Hók, J. - Dohnal, J.
Paleosesimic study of the Sudetic Marginal Fault at the locality Bílá Voda (Bohemian Massif).
Earthquake Geology and Geoarchaeology: Science, Society and Critical facilities. 2nd INQUA-IGCP-567 International Workshop on Active Tectonics, Earthquake Geology, Archaeology and Engineering. Vol. 2. Athens: Natural Hazards Laboratory, National and Kapodistrian University of Athens, 2011 - (Grützner, C.; Pérez-López, R.; Fernández-Steeger, T.), s. 239-242. ISBN 978-960-466-093-3.
[INQUA-IGCP-567 International Workshop on Active Tectonics, Earthquake Geology, Archaeology and Engineering /2./. Corinth (GR), 19.09.2011-24.09.2011]
R&D Projects: GA ČR GP205/08/P521
Institutional research plan: CEZ:AV0Z30460519
Keywords : active tectonics * trenching * paleoseismology
Subject RIV: DB - Geology ; Mineralogy
http://tierra.rediris.es/aequa/doc/Abstract_Volume_Corinth_2011.pdf

The study area is situated in the north-eastern part of the Bohemian Massif and comprises SE part of the Sudetic Marginal Fault zone (SMF) with pronounced mountain front, which borders the Sudeten Mts. Paleoseismological trenches at the locality of Bílá Voda municipality performed across the SMF were carried out in order to study potential prehistoric morphogenic earthquakes responsible for the present-day morphology. Geomorphologic analysis and electrical resistivity tomography enabled to position the trenches at suitable site. The trenches revealed prevailing strike-slip character of the late Quaternary faulting. Faulted deposits were dated by OSL and radiocarbon dating methods and the results are discussed here. At least four or five events creating a surface rupture during late Quaternary (Holocene) were inferred. Due to strike-slip character, the horizontal displacement and the related slip-rate on the SMF is still under investigation. From the previous study, minimum magnitude M 6.3 is expected for the SMF.
Permanent Link: http://hdl.handle.net/11104/0204741