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Volume 25 Issue 1
Feb 2014
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Article Contents
Huiping Zhang, Yuanyuan Lü. Geomorphometric Features of the Alluvial Fans around the Chaka-Qinghai Lake in the Northeastern Tibetan Plateau. Journal of Earth Science, 2014, 25(1): 109-116. doi: 10.1007/s12583-014-0404-z
Citation: Huiping Zhang, Yuanyuan Lü. Geomorphometric Features of the Alluvial Fans around the Chaka-Qinghai Lake in the Northeastern Tibetan Plateau. Journal of Earth Science, 2014, 25(1): 109-116. doi: 10.1007/s12583-014-0404-z

Geomorphometric Features of the Alluvial Fans around the Chaka-Qinghai Lake in the Northeastern Tibetan Plateau

doi: 10.1007/s12583-014-0404-z
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  • Corresponding author: Yuanyuan Lü, geolyy@hotmail.com
  • Received Date: 12 Dec 2012
  • Accepted Date: 02 Apr 2013
  • Publish Date: 01 Feb 2014
  • This article aims to study the geomorpometric features of alluvial fans since they act as a small-scale geomorphic unit response to tectonics and climate changes around the Chaka-Qinghai Lake area in the northeastern Tibetan Plateau. We quantitatively extracted geomorphic parameters, such as the surface area and slope of alluvial fans adjacent to the Qinghai Nan Shan and Ela Shan. Alluvial fans in the Chaka Lake partition area, south of the Qinghai Nan Shan, are featured by a small area and short length, but the largest slope. Geomorphic parameters of the alluvial fans in Ela Shan area are intermediate in size, and the alluvial fans in the Qinghai Lake partition area north of Qinghai Nan Shan have the gentlest slope. Together with the regional faulting activity analysis, we suggest that the alluvial fans with the high slopes in the south of Qinghai Nan Shan are mainly controlled by the reverse faulting along the Qinghai Nan Shan faults, and the strike-slip movement of the Ela Shan fault zone plays a weak role. In contrast, due to the lack of active faults, the alluvial fans near the Qinghai Lake area north of the Qinghai Nan Shan only respond to regional erosion, transportation, and deposition processes, thereby forming relatively gentle geomorphic units.

     

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