THE LANDFORM FORMATION PROCESS OF ALPINE-GORGE IN BEISHAN, WUSHI COUNTY, SOUTHWESTERN TIANSHAN

CHEN Rui-ming; ZHA Xian-feng; GU Ping-yang; ZHUANG Yu-jun

2017 Vol. 23, No. 2

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CHEN Rui-ming, ZHA Xian-feng, GU Ping-yang, ZHUANG Yu-jun. THE LANDFORM FORMATION PROCESS OF ALPINE-GORGE IN BEISHAN, WUSHI COUNTY, SOUTHWESTERN TIANSHAN[J]. Journal of Geomechanics, 2017, 23(2): 264-271.

Citation:

CHEN Rui-ming, ZHA Xian-feng, GU Ping-yang, ZHUANG Yu-jun. THE LANDFORM FORMATION PROCESS OF ALPINE-GORGE IN BEISHAN, WUSHI COUNTY, SOUTHWESTERN TIANSHAN[J]. Journal of Geomechanics, 2017, 23(2): 264-271.

THE LANDFORM FORMATION PROCESS OF ALPINE-GORGE IN BEISHAN, WUSHI COUNTY, SOUTHWESTERN TIANSHAN

1.
Xi'an Center of Geological Survey, CGS, Xi'an 710054, Shannxi, China
2.
Orogen Research Center of China Geological Survey, Xi'an 710054, Shannxi, China

Received Date: 27 October 2016

Publish Date: 25 April 2017

Abstract

Abstract

The geomorphological evolutionisbasically influenced by the tectonic and its regular pattern. Based on the observation of Quaternary deposit and erosional landform of Gunguntielieke river valley in Beishan, Wushi County, Southwest Tianshan, combing with the published stratigraphic chronology, the evolution of erosive geomorphic in Middle Pleistocene and Holocene are reproduced. In Middle Pleistocene, the geomorphological cutting depth is more than 1870 m, which is much deeper than 50 m in Holocene and it is believed that the alpine-gorge in this area was formed in Middle Pleistocene. Generally developed Middle Pleistocene fold thrust structure in Southwest Tianshan, resulting in the rapid and substantial mountainuplift, is the main cause of the alpine-gorge geomorphology in Beishan. The fold thrust structures extended to the basin, which led to the decrease of amplitude of the uplift of the mountain to the basin. It reveals the spatial regularity of the geomorphological evolution in Beishan. There is a close relationship between the process of Quaternary tectonic uplift and geomorphological evolution in Southwest Tianshanmountainaccording to this stuty.
- Southwest Tianshan /
- Wushi /
- Middle Pleistocene /
- alpine-gorge /
- uplift /
- geomorphological evolution

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References

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