Cryoturbation versus tectonic deformation along the southern edge of the Tunka Basin (Baikal Rift System), Siberia: New insights from an integrated morphotectonic and stratigraphic study
作者： Anastasia Arzhannikova , Jean-François Ritz , Christophe Larroque , Pierre Antoine , Sergey Arzhannikov
DOI: 10.1016/J.JSEAES.2020.104569
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摘要: The Tunka Basin is a broad, emerging basin situated between the Baikal Lake to east and Hovsgol west. bounded north south by Khamar-Daban mountain ranges, respectively. normal fault, located at southern foothills of range, main structure that controlled development during Neogene. Paleoearthquake-surface ruptures attest its present activity; show western eastern terminations are undergoing tectonic inversion characterized left-lateral-reverse deformations. edge classically interpreted as being tectonically controlled. In this paper, we results geomorphological stratigraphic analysis within southwestern southeastern parts suggesting there no active fault affecting range. different features observed in Quaternary deposits be result periglacial processes induced alternating episodes permafrost aggradation degradation Holocene. Our study concludes Range uplifting together, Mondy faults two triggers regional earthquakes.
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