Late Quaternary activity of slow-slip intraplate Mariánské Lázně fault as revealed by trenching and shallow geophysical survey, Bohemian Massif (Czech Republic, central Europe)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F17%3A00486298" target="_blank" >RIV/67985891:_____/17:00486298 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Late Quaternary activity of slow-slip intraplate Mariánské Lázně fault as revealed by trenching and shallow geophysical survey, Bohemian Massif (Czech Republic, central Europe)

Popis výsledku v původním jazyce

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.n

Název v anglickém jazyce

Late Quaternary activity of slow-slip intraplate Mariánské Lázně fault as revealed by trenching and shallow geophysical survey, Bohemian Massif (Czech Republic, central Europe)

Popis výsledku anglicky

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.n

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10505 - Geology

Projekt

<a href="/cs/project/GC16-10116J" target="_blank" >GC16-10116J: Tektonická aktivita západní části oherského riftu od pozdního kenozoika do současnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 8th International INQUA Meeting on Paleoseismology, Active Tectonics and Archeoseismology. Handbook and Programme. 13-16 November 2017

ISBN

978-1-98-853036-9

ISSN

1177-2441

e-ISSN

1172-2886

Počet stran výsledku

3

Strana od-do

378-380

Název nakladatele

GNS Science

Místo vydání

Lower Hutt

Místo konání akce

Blenheim

Datum konání akce

13. 11. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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