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- Title
Optically Stimulated Luminescence (OSL) Chronology of the Dehenglong Landslide from Longyang Gorge to Liujia Gorge along Upper Yellow River, China.
- Authors
GUO Xiaohua; LAI Zhongping; LU Yudong; LI Xiaolin; SUN Zheng
- Abstract
Giant landslides are common along the upper Yellow River from Longyang Gorge to Liujia Gorge, and some of them even blocked and dammed the upper Yellow River. Chronology is inevitable in studying the mechanism of giant landslides. Controversy exists about the chronology of those giant landslides, and some have not yet dated. The Dehenglong landslide is the largest one among them. In this study, OSL samples were collected from lacustrine silty sediments and loess directly overlying the landslide sediments, as well as fault sediments related to the landslide. This landslide yielded an age of 89 ± 8 ka, which is identical with the fault age of 73 ± 5 ka at two sigma errors. The agreement of a topographic analysis and the absolute age of landslides imply that the formation of the Dehenglong landslide is strongly correlated with the tectonic activity.
- Subjects
CHINA; OPTICALLY stimulated luminescence dating; LANDSLIDES; RIVERS; SEDIMENTS; GEOLOGIC faults; PLATE tectonics
- Publication
Acta Geologica Sinica (English Edition), 2015, Vol 89, Issue 1, p242
- ISSN
1000-9515
- Publication type
Article
- DOI
10.1111/1755-6724.12408