Earthquake-induced soft-sediment deformation structures in Late Pleistocene lacustrine deposits of Issyk-Kul lake (Kyrgyzstan)
| Autor: | A. S. Yudakhin, M. V. Rodkin, Evgeny Deev, S. V. Abdieva, T. A. Charimov, J. V. Mazeika, E. A. Rogozhin, A. M. Korzhenkov, A. S. Gladkov, A. B. Fortuna, E.U. Lobova |
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| Rok vydání: | 2016 |
| Předmět: |
Shore
geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences Pleistocene Stratigraphy Liquefaction Geology Deformation (meteorology) 010502 geochemistry & geophysics 01 natural sciences Soft-sediment deformation structures Lamination (geology) Paleontology Terrace (geology) Subaerial Geomorphology 0105 earth and related environmental sciences |
| Zdroj: | Sedimentary Geology. 344:112-122 |
| ISSN: | 0037-0738 |
| DOI: | 10.1016/j.sedgeo.2016.06.019 |
| Popis: | This paper discusses the composition and distribution of soft-sediment deformation structures induced by liquefaction in Late Pleistocene lacustrine terrace deposits on the southern shore of Issyk-Kul Lake in the northern Tien Shan mountains of Kyrgyzstan. The section contains seven deformed beds grouped in two intervals. Five deformed beds in the upper interval contain load structures (load casts and flame structures), convolute lamination, ball-and-pillow structures, folds and slumps. Deformation patterns indicate that a seismic trigger generated a multiple slump on a gentle slope. The dating of overlying subaerial deposits suggests correlation between the deformation features and strong earthquakes in the Late Pleistocene. |
| Databáze: | OpenAIRE |
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