藏南聂拉木-措勤裂谷南段第四纪正断层作用的时空特征

高扬; 吴中海; 左嘉梦; 王世锋; 盖海龙; 田婷婷

doi:10.3799/dqkx.2023.009

Volume 49 Issue 7

Jul. 2024

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Article Navigation > Earth Science > 2024 > 49(7): 2552-2569

Gao Yang, Wu Zhonghai, Zuo Jiameng, Wang Shifeng, Gai Hailong, Tian Tingting, 2024. Spatial-Temporal Activity of Quaternary Faults at Southern End of Nyalam-Coqen Rift, Southern Tibet. Earth Science, 49(7): 2552-2569. doi: 10.3799/dqkx.2023.009

Citation:

Gao Yang, Wu Zhonghai, Zuo Jiameng, Wang Shifeng, Gai Hailong, Tian Tingting, 2024. Spatial-Temporal Activity of Quaternary Faults at Southern End of Nyalam-Coqen Rift, Southern Tibet. Earth Science, 49(7): 2552-2569. doi: 10.3799/dqkx.2023.009

Citation:

Gao Yang, Wu Zhonghai, Zuo Jiameng, Wang Shifeng, Gai Hailong, Tian Tingting, 2024. Spatial-Temporal Activity of Quaternary Faults at Southern End of Nyalam-Coqen Rift, Southern Tibet. Earth Science, 49(7): 2552-2569. doi: 10.3799/dqkx.2023.009

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Spatial-Temporal Activity of Quaternary Faults at Southern End of Nyalam-Coqen Rift, Southern Tibet

doi: 10.3799/dqkx.2023.009

Gao Yang^{1, 2
,
,},
Wu Zhonghai^{1, 3
,
,},
Zuo Jiameng¹,
Wang Shifeng^{1, 3},
Gai Hailong⁴,
Tian Tingting^{1, 3}

1.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2.
School of Earth and Space Sciences, Peking University, Beijing 100871, China
3.
Key Laboratory of Active Tectonics and Geological Safety, Ministry of Natural Resources, Beijing 100081, China
4.
Qinghai Earthquake Agency, Xining 810001, China

Received Date: 2022-10-20
Available Online: 2024-08-03
Publish Date: 2024-07-25

Abstract

Abstract

A comprehensive understanding of the spatial and temporal differences in the activity of north-south trending normal faults is important to understand the formation of the southern Tibet Rifts. Here, we use the interpretation of high-resolution remote sensing images, structural geomorphology, ground survey, Unmanned Aerial Vehicles (UVA) systems for photogrammetric surveys, and published chronological data to investigate the Quaternary activities and spatial and temporal differences of the main north-south graben and its boundary normal faults at the southern end of the Nyalam-Coqen rift. It is found that the Quaternary activity of normal faults at the southern end of the Nyalam-Coqen rift show obvious spatial and temporal differences. In time, activity of normal faults at the southern end of the Nyalam-Coqen rift presents three periods of pre-Quaternary, Early and Middle Pleistocene, and Late Quaternary. In space, the rifting range of the near north-south grabens has shrunk significantly since the Late Miocene, and its rifting range gradually has shrunk from Nyalam area to Peiku Co and Mulin Co, and Drolung. In addition, the spatial and temporal differences and characteristics of the north-south normal faulting in each rift should be considered to analyze the formation mechanism of the southern Tibet rifts.
- Tibetan Plateau,
- north-south trending rift,
- active fault,
- east-west extensional deformation,
- Peiku Co graben,
- structural geology

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References(54)

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Spatial-Temporal Activity of Quaternary Faults at Southern End of Nyalam-Coqen Rift, Southern Tibet

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