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Geology, permafrost, and lake level changes as factors initiating landslides on Olkhon Island (Lake Baikal, Siberia)

Urheber*innen

Tyszkowski,  Sebastian
External Organizations;

Kaczmarek,  Halina
External Organizations;

/persons/resource/michal

Slowinski,  Michal
5.2 Climate Dynamics and Landscape Evolution, 5.0 Earth Surface Processes, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Kozyreva,  Elena
External Organizations;

Brykała,  Dariusz
External Organizations;

Rybchenko,  Artiom
External Organizations;

Babicheva,  Viktoria A.
External Organizations;

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Zitation

Tyszkowski, S., Kaczmarek, H., Slowinski, M., Kozyreva, E., Brykała, D., Rybchenko, A., Babicheva, V. A. (2015): Geology, permafrost, and lake level changes as factors initiating landslides on Olkhon Island (Lake Baikal, Siberia). - Landslides, 12, 3, 573-583.
https://doi.org/10.1007/s10346-014-0488-7


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_1125888
Zusammenfassung
Permafrost decline, observed in the last few decades as a result of climate change, causes an activation of cryogenic landslide processes. This study on Olkhon Island in Lake Baikal (Eastern Siberia), located within the discontinuous permafrost zone, was aimed to determine how strongly the landslide forms found there are associated with climatic conditions and if they can react to climate change. It was also important to identify which type of landslides in this area is the most sensitive indicator of the observed changes and to what extent they can react to them. For this purpose, landslides were identified, and their morphology, geological structure, and thermal parameters were assessed. The results show that the key process is the increase in thickness of the active layer, partly due to the presence of Miocene lake clays and changes in water level in Lake Baikal.