Co-seismic deformation of the 2017 M-w 6.6 Bodrum-Kos earthquake in speleothems of Korakia Cave (Pserimos, Dodecanese, Greece)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F22%3A00557045" target="_blank" >RIV/67985891:_____/22:00557045 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0169555X22000307" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169555X22000307</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.geomorph.2022.108137" target="_blank" >10.1016/j.geomorph.2022.108137</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Co-seismic deformation of the 2017 M-w 6.6 Bodrum-Kos earthquake in speleothems of Korakia Cave (Pserimos, Dodecanese, Greece)

Popis výsledku v původním jazyce

Structural mapping and dating of damaged speleothems have been used to investigate earthquake records in caves, especially of large infrequent events. However, there are few reports of damages in caves visited before and after a particular earthquake, where the damage can be directly related to a recorded event. We mapped the previously unexplored Korakia Cave on Pserimos island in the Dodecanese (Greece) prior to the 2017 M-w 6.6 Bodrum-Kos earthquake. The Dodecanese is at the transition between the Aegean and Anatolian region and is known for its strong seismicity. Although several hundred stalactites with large height-to-width ratios are preserved on the roof of Korakia Cave, the cave has an extensive record of damaged speleothems, which have been caused by movements along normal faults. Here we present new data and Th-230/U-ages of paleoseismic events that are partly older than the limit of the dating method. A cave visit after the 2017 M-w 6.6 Bodrum-Kos earthquake revealed that c. 10 cm small stalactites, which were actively growing along fractures in the cave ceiling, had been chipped off by movements along the fractures during that earthquake. We conclude that movements along fractures or faults during seismic events can easily damage stalagmites and stalactites. However, damage related to the resonance frequency of the dripstones matching with the seismic wave frequency, which has been suggested to break dripstones with large height-to-width ratios, was not observed in Korakia Cave.

Název v anglickém jazyce

Co-seismic deformation of the 2017 M-w 6.6 Bodrum-Kos earthquake in speleothems of Korakia Cave (Pserimos, Dodecanese, Greece)

Popis výsledku anglicky

Structural mapping and dating of damaged speleothems have been used to investigate earthquake records in caves, especially of large infrequent events. However, there are few reports of damages in caves visited before and after a particular earthquake, where the damage can be directly related to a recorded event. We mapped the previously unexplored Korakia Cave on Pserimos island in the Dodecanese (Greece) prior to the 2017 M-w 6.6 Bodrum-Kos earthquake. The Dodecanese is at the transition between the Aegean and Anatolian region and is known for its strong seismicity. Although several hundred stalactites with large height-to-width ratios are preserved on the roof of Korakia Cave, the cave has an extensive record of damaged speleothems, which have been caused by movements along normal faults. Here we present new data and Th-230/U-ages of paleoseismic events that are partly older than the limit of the dating method. A cave visit after the 2017 M-w 6.6 Bodrum-Kos earthquake revealed that c. 10 cm small stalactites, which were actively growing along fractures in the cave ceiling, had been chipped off by movements along the fractures during that earthquake. We conclude that movements along fractures or faults during seismic events can easily damage stalagmites and stalactites. However, damage related to the resonance frequency of the dripstones matching with the seismic wave frequency, which has been suggested to break dripstones with large height-to-width ratios, was not observed in Korakia Cave.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Geomorphology

ISSN

0169-555X

e-ISSN

1872-695X

Svazek periodika

402

Číslo periodika v rámci svazku

APR 1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

108137

Kód UT WoS článku

000778273600001

EID výsledku v databázi Scopus

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