PDF(24413 KB)
Spatial-Temporal Activity of Quaternary Faults at Southern End of Nyalam-Coqen Rift, Southern Tibet
Gao Yang, Wu Zhonghai, Zuo Jiameng, Wang Shifeng, Gai Hailong, Tian Tingting
PDF(24413 KB)
PDF(24413 KB)
Spatial-Temporal Activity of Quaternary Faults at Southern End of Nyalam-Coqen Rift, Southern Tibet
,
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
|
Armijo, R., Tapponnier, P., Han, T. L., 1989. Late Cenozoic Right‐Lateral Strike‐Slip Faulting in Southern Tibet. Journal of Geophysical Research: Solid Earth, 94(B3): 2787-2838.
|
|
Armijo, R., Tapponnier, P., Mercier, J. L., et al., 1986. Quaternary Extension in Southern Tibet: Field Observations and Tectonic Implications. Journal of Geophysical Research: Solid Earth, 91(B14): 13803-13872. https://doi.org/10.1029/jb091ib14p13803
|
|
Burke, W. B., Laskowski, A. K., Orme, D. A., et al., 2021. Record of Crustal Thickening and Synconvergent Extension from the Dajiamang Tso Rift, Southern Tibet. Geosciences, 11(5): 209. https://doi.org/10.3390/geosciences11050209
|
|
Chevalier, M. L., Tapponnier, P., Van Der Woerd, J., et al., 2020. Late Quaternary Extension Rates across the Northern Half of the Yadong‐Gulu Rift: Implication for East‐West Extension in Southern Tibet. Journal of Geophysical Research: Solid Earth, 125(7): e2019JB019106. https://doi.org/10.1029/2019JB019106
|
|
Coleman, M., Hodges, K.,1995. Evidence for Tibetan Plateau Uplift before 14 Myr Ago from a New Minimum Age for East-West Extension. Nature, 374(6517): 49-52.
|
|
Dewey, J. F., 1988. Extensional Collapse of Orogens. Tectonics, 7(6): 1123-1139. https://doi.org/10.1029/tc007i006p01123
|
|
England, P., Houseman, G., 1989. Extension during Continental Convergence, with Application to the Tibetan Plateau. Journal of Geophysical Research: Solid Earth, 94(B12): 17561-17579. https://doi.org/10.1029/jb094ib12p17561
|
|
Ha, G. H., 2019. Normal Faulting of Central-Southern Yadong-Gulu Rift since Late Cenozoic, Southern Tibet (Dissertation). Chinese Academy of Geological Sciences, Beijing (in Chinese with English abstract).
|
|
Hager, C., Stockli, D. F., Dewane, T. J., et al., 2006. Episodic Mio-Pliocene Rifting in South-Central Tibet. Thermochronometric Constraints from the Xainza Rift. In: AGU Fall Meeting. AGU, San Francisco.
|
|
Han, T. L., 1987.The Active Tectonic in Xizang (Tibet). Geological Publishing House, Beijing (in Chinese).
|
|
Harrison, T. M., Copeland, P., Kidd, W. S. F., et al., 1995. Activation of the Nyainqentanghla Shear Zone: Implications for Uplift of the Southern Tibetan Plateau. Tectonics, 14(3): 658-676. https://doi.org/10.1029/95TC00608
|
|
Kali, E., van der Woerd, J., Leloup, P. H., et al., 2010. Extension in Central-South Tibet, Insight from Cosmogenic Nuclide Dating. In: AGU Fall Meeting. AGU, San Francisco.
|
|
Kong, P., Na, C. G., Brown, R., et al., 2011. Cosmogenic 10Be and 26Al Dating of Paleolake Shorelines in Tibet. Journal of Asian Earth Sciences, 41(3): 263-273. https://doi.org/10.1016/j.jseaes.2011.02.016
|
|
Liu, G.N., Chen, Y.X., Zhang, M., et al., 2011. Glacial Landform Chronology and Environment Reconstruction of Peiku Gangri, Himalayas. Journal of Glaciology and Geocryology, 33(5): 959-970 (in Chinese with English abstract).
|
|
Liu, L., Shao, Y.X., Wang, W., et al., 2022. Study on the Tectonic Geomorphology and Fault Activity Characteristics of the Zhongba Rift, Southern Tibet. Earth Science, 47(8): 3029-3044 (in Chinese with English abstract).
|
|
Molnar, P., Tapponnier, P., 1978. Active Tectonics of Tibet. Journal of Geophysical Research: Solid Earth, 83(B11): 5361-5375. https://doi.org/10.1029/jb083ib11p05361
|
|
Ni, J., York, J. E., 1978. Late Cenozoic Tectonics of the Tibetan Plateau. Journal of Geophysical Research: Solid Earth, 83(B11): 5377-5384. https://doi.org/10.1029/jb083ib11p05377
|
|
Ratschbacher, L., Krumrei, I., Blumenwitz, M., et al., 2011. Rifting and Strike-Slip Shear in Central Tibet and the Geometry, Age and Kinematics of Upper Crustal Extension in Tibet. Geological Society, London, Special Publications, 353(1): 127-163. https://doi.org/10.1144/sp353.8
|
|
Shen, T. Y., Wang, G. C., Leloup, P. H., et al., 2016. Controls on Cenozoic Exhumation of the Tethyan Himalaya from Fission-Track Thermochronology and Detrital Zircon U-Pb Geochronology in the Gyirong Basin Area, Southern Tibet. Tectonics, 35(7): 1713-1734. https://doi.org/10.1002/2016tc004149
|
|
Styron, R., Taylor, M., Sundell, K., 2015. Accelerated Extension of Tibet Linked to the Northward Underthrusting of Indian Crust. Nature Geoscience, 8(2): 131-134. https://doi.org/10.1038/ngeo2336
|
|
Tapponnier, P., Xu, Z. Q., Roger, F., et al., 2001. Oblique Stepwise Rise and Growth of the Tibet Plateau. Science, 294(5547): 1671-1677. https://doi.org/10.1126/science.105978
|
|
Taylor, M., Yin, A., 2009. Active Structures of the Himalayan-Tibetan Orogen and Their Relationships to Earthquake Distribution, Contemporary Strain Field, and Cenozoic Volcanism. Geosphere, 5(3): 199-214. https://doi.org/10.1130/ges00217.1
|
|
Research Team of the Qinghai-Tibetan Plateau Scientific Expedition of the Chinese Academy of Sciences, 1983. Geomorphology of Xizang (Tibet). Science Press, Beijing (in Chinese).
|
|
Tian, T. T., 2021. Dating of Late Quaternary Paleoseismic Events of the Dingmu Cuo Fault in the Southern Section of Shenzha-Dingjie Rift (Dissertation). China University of Geosciences, Beijing (in Chinese with English abstract).
|
|
Wang, S. G., Chevalier, M. L., Pan, J. W., et al., 2020. Quantification of the Late Quaternary Throw Rates along the Yadong Rift, Southern Tibet. Tectonophysics, 790: 228545. https://doi.org/10.1016/j.tecto.2020.228545
|
|
Williams, H., Turner, S., Kelley, S., et al., 2001. Age and Composition of Dikes in Southern Tibet: New Constraints on the Timing of East-West Extension and Its Relationship to Postcollisional Volcanism. Geology, 29(4): 339-342. https://doi.org/10.1130/0091-7613(2001)0290339: aacodi>2.0.co;2
|
|
Wu, Z.H., 2022. Active Faults and Engineering Applications Ⅰ: Definition and Classification. Journal of Earth Sciences and Environment, 44(6): 922-947 (in Chinese with English abstract).
|
|
Wu, Z. H., Wu, Z. H., Hu, D. G., et al., 2006. Holocene Seismogenic Faults along the Tanggula-Lhasa Section of the Qinghai-Tibet Railway, China. Geological Bulletin of China, 25(12): 1387-1401 (in Chinese with English abstract).
|
|
Wu, Z. H., Ye, P. S., Barosh, P.J., et al., 2011. The October 6, 2008 Mw 6.3 Magnitude Damxung Earthquake, Yadong-Gulu Rift, Tibet, and Implications for Present-Day Crustal Deformation within Tibet. Journal of Asian Earth Sciences, 40: 943-957. https://doi.org/10.1016/j.jseaes.2010.05.003
|
|
Wu, Z.H., Ye, P.S., Wang, C.M., et al., 2015. The Relics, Ages and Significance of Prehistoric Large Earthquakes in the Angang Graben in South Tibet. Earth Science, 40(10): 1621-1642 (in Chinese with English abstract).
|
|
Wu, Z.H., Ye, P.S., Wu, Z.H., 2009. The Seismic Intensity, Seismogenic Tectonics and Mechanism of the Ms 6.6 Damxung Earthquake Happened on October 6, 2008 in Southern Tibet, China. Geological Bulletin of China, 28(6): 713-725 (in Chinese with English abstract).
|
|
Wu, Z.H., Zhang, Y.S., Hu, D.G., et al., 2008. The Quaternary Normal Faulting of the Cona-Oiga Rift. Seismology and Geology, 30(1): 144-160 (in Chinese with English abstract).
|
|
Wünnemann, B., Yan, D. D., Ci, R., 2015. Morphodynamics and Lake Level Variations at Paiku Co, Southern Tibetan Plateau, China. Geomorphology, 246: 489-501. https://doi.org/10.1016/j.geomorph.2015.07.007
|
|
Yang, W.C., Liu, X.Y., Chen, Z.X., et al., 2022. Asthenosphere Mass Movement in Qinghai-Tibetan Plateau Revealed by High-Resolution Seismic Tomography. Earth Science, 47(10): 3491-3500 (in Chinese with English abstract).
|
|
Yin, A., 2000. Mode of Cenozoic East‐West Extension in Tibet Suggesting a Common Origin of Rifts in Asia during the Indo‐Asian Collision. Journal of Geophysical Research: Solid Earth, 105(B9): 21745-21759. https://doi.org/10.1029/2000JB900168
|
|
Zhang, J.J., 2007. A Review on the Extensional Structures in the Northern Himalaya and Southern Tibet. Geological Bulletin of China, 26(6): 639-649 (in Chinese with English abstract).
|
|
Zhang, J. J., Santosh, M., Wang, X. X., et al., 2012. Tectonics of the Northern Himalaya since the India-Asia Collision. Gondwana Research, 21(4): 939-960. https://doi.org/10.1016/j.gr.2011.11.004
|
|
Zhong, D.L., Ding, L., 1996. Discussion on Uplift Process and Mechanism of Qinghai-Tibet Plateau. Scientia Sinica Terrae, 26(4): 289-295 (in Chinese).
|
|
Zuo, J. M., 2021. Late Quaternary Activity Characteristics of the Chongba Yumtso Normal Fault in the Southern Section of the Yadong-Gulu Rift, Tibet (Dissertation). China University of Geosciences, Beijing (in Chinese with English abstract).
|
中国科学院西北生态环境资源研究院赵井东副研究员为野外工作提供了热心指导和帮助，审稿专家为论文改进提出了建设性的意见和建议，在此一并表示衷心感谢！
/
| 〈 |
|
〉 |
AI Summary
