Seismogenic structures in Quaternary lacustrine deposits of Lake Van (eastern Turkey)

• Autorzy: Üner S.

Identyfikatory

DOI

10.2478/logos-2014-0011

• Języki publikacji: EN

Abstrakty

EN

Soft-sediment deformation structures formed by liquefaction and/or fluidisation of unconsolidated sediments due to seismic shocks are frequent in the Quaternary sandy, silty and clayey deposits of Lake Van. They are present in both marginal and deep lacustrine facies. Their morphology and interpreted genesis imply that they should be considered as fluid-escape structures (dish and pillar structures, flame structures and sand volcanoes), contorted structures (simple and complex convolutions and ball-and-pillow structures) and other structures (disturbed layers and slump structures). The most recently formed structures are related to the October 23rd, 2011 Van-Tabanlı (Mw 7.2) earthquake. The exist-ence of seismites at various stratigraphic levels in the lacustrine deposits is indicative of tectonic activity that frequently triggered earthquakes with magnitudes of 5 or more, affecting the Lake Van Basin.

Słowa kluczowe

EN

seismites; soft-sediment deformation structures; earthquake; Lake Van; Turkey

PL

sejsmity; struktury deformacji; osady miękkie; trzęsienie ziemi; jezioro Wan; Turcja

• Wydawca: Uniwersytet im. Adama Mickiewicza. Instytut Geologii
• Czasopismo: Geologos
• Rocznik: 2014
• Tom: Vol. 20, No. 2
• Strony: 79--87
• Opis fizyczny: Bibliogr. 63 poz.

Twórcy

autor

Üner S.

• Yüzüncü Yıl University, Dept. of Geological Engineering, 65080 Zeve Campus / Van, Turkey

Bibliografia

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