Geological genesis model of red strata landslide in Qamdo, eastern Xizang

LI Hongliang; HUANG Hai; ZHANG Yong; TIAN You; CHEN Long; ZHANG Jiajia; LI Yuanling; GAO Bo; YANG Dongxu; WANG Ling

doi:10.19826/j.cnki.1009-3850.2024.07002

2024 Vol. 44, No. 3

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Article navigation > Sedimentary Geology and Tethyan Geology > 2024 > 44(3): 493-509

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LI Hongliang, HUANG Hai, ZHANG Yong, TIAN You, CHEN Long, ZHANG Jiajia, LI Yuanling, GAO Bo, YANG Dongxu, WANG Ling. 2024. Geological genesis model of red strata landslide in Qamdo, eastern Xizang. Sedimentary Geology and Tethyan Geology, 44(3): 493-509. doi: 10.19826/j.cnki.1009-3850.2024.07002

Citation:

LI Hongliang, HUANG Hai, ZHANG Yong, TIAN You, CHEN Long, ZHANG Jiajia, LI Yuanling, GAO Bo, YANG Dongxu, WANG Ling. 2024. Geological genesis model of red strata landslide in Qamdo, eastern Xizang. Sedimentary Geology and Tethyan Geology, 44(3): 493-509. doi: 10.19826/j.cnki.1009-3850.2024.07002

Geological genesis model of red strata landslide in Qamdo, eastern Xizang

1.
Civil-Military Integration Center of China Geological Survey, Chengdu 610036, China
2.
Institute of Prospecting Technology, Chinese Academy of Geological Sciences, Chengdu 611734, China
3.
Technology Innovation Center for Risk Prevention and Mitigation of Geohazard, Ministry of Natural Resources, Chengdu 611734, China
4.
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China
5.
College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China
6.
No. 208 Geological Team, Bureau of Geological and Mineral Exploration and Development, Chongqing 401121, China

Received Date: 19 May 2023

Revised Date: 05 August 2023

Accepted Date: 12 August 2023

Publish Date: 30 September 2024

Abstract

Abstract

The Qamdo red strata in eastern Xizang is adjacent to the north Lancang River suture zone (LCS). It is a newly defined red strata series in recent years. In order to further enrich and improve research on red strata and landslides, based on detailed field investigations, this paper summarizes the geological genesis models of red strata landslides in Qamdo, eastern Xizang, from the perspective of structural geology restricting the boundary conditions of landslide development, and briefly analyzes typical cases of different types of landslides. The results show that, under the influence of regional orogeny, the Qamdo red strata in eastern Xizang were tilted and developed a large amount of penetrating structural planes with weak physical and mechanical properties. The geological genesis models of red strata landslides in Qamdo, eastern Xizang mainly include five types: primary bedding type, bedding fault type, bedding joint type, fold joint type, and fault joint type. The structural plane is the main controlling factor of the development of red strata landslides. It is suggested that, based on clarifying the tectonic evolution process and tectonic framework of the study area, the development characteristics of the structural plane in the landslide area should be meticulously delineated, to provide theoretical support for revealing the internal mechanism of landslide development, monitoring, and engineering prevention.
- geological genesis model /
- red strata landslide /
- north Lancang River suture zone /
- structural plane /
- Qamdo Basin; red strata of eastern Xizang

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