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Late Quaternary activity of slow-slip intraplate Mariánské Lázně fault as revealed by trenching and shallow geophysical survey, Bohemian Massif (Czech Republic, central Europe)
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SYSNO ASEP 0486298 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Late Quaternary activity of slow-slip intraplate Mariánské Lázně fault as revealed by trenching and shallow geophysical survey, Bohemian Massif (Czech Republic, central Europe) Tvůrce(i) Štěpančíková, Petra (USMH-B) RID, ORCID, SAI
Fischer, T. (CZ)
Hartvich, Filip (USMH-B) RID, ORCID, SAI
Tábořík, Petr (USMH-B) RID, ORCID
Rockwell, T. (US)
Stemberk, Jakub (USMH-B) ORCID, RID, SAI
Široký, J. (CZ)
Sana, Hamid (USMH-B) ORCIDZdroj.dok. Proceedings of the 8th International INQUA Meeting on Paleoseismology, Active Tectonics and Archeoseismology. Handbook and Programme. 13-16 November 2017. - Lower Hutt : GNS Science, 2017 - ISSN 1177-2441 - ISBN 978-1-98-853036-9 Rozsah stran s. 378-380 Poč.str. 3 s. Forma vydání Online - E Akce International INQUA Meeting on Paleoseismology, Active Tectonics and Archeoseismology /8./ Datum konání 13.11.2017 - 16.11.2017 Místo konání Blenheim Země NZ - Nový Zéland Typ akce WRD Jazyk dok. eng - angličtina Země vyd. NZ - Nový Zéland Klíč. slova paleoseismic trenching ; historic earthquake ; Cheb basin ; Mariánské Lázně fault ; Bohemian Massif Vědní obor RIV DB - Geologie a mineralogie Obor OECD Geology CEP GC16-10116J GA ČR - Grantová agentura ČR Institucionální podpora USMH-B - RVO:67985891 Anotace The NNW-SSE trending Mariánské Lázně Fault (MLF) zone is situated in the western part of the Bohemian Massif (Czech Republic, central Europe) where it intersects NE-trending Cenozoic Eger rift. The northern segment of the MLF controls the morphologically pronounced mountain front of Krušné hory Mts. and eastern limit of Cenozoic Cheb basin, which is famous for earthquake swarms (max. ML=4.6) and CO2 emanation. We performed 2D and 3D geophysical survey (electric resistivity tomography, ground penetration radar) and 3D trenching to look for large surface-rupturing prehistoric earthquake responsible for pronounced moutain range front. Seven excavated and six hand-dug trenches revealed a complex geology and deformation at the study site probably as a result of right-lateral transpression during Late Quaternary. Two Holocene earthquakes 1150-590 BC and 780-1000 AD were inferred from 14C dating of faulted Holocene colluvium with corresponding magnitudes Mw=6.7-7.0. The latter one is the youngest documented surface-rupturing event in central Europe.
Pracoviště Ústav struktury a mechaniky hornin Kontakt Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216 Rok sběru 2018
Počet záznamů: 1