Abstract
By inversion of fault slip data for Quaternary tectonic stress field and the analysis of crustal deformation after late Teriary, we explained the evolution of crustal dynamic about the north and east margin of Qinghai-Xizang (Tibet) plateau since Miocene. From middle or late Miocene to early Pleistocene, the tectonic stress field was featured by a maximum principal compression which was coming from the collision of India Plate perpendicular to the boundary of the plateau, and was basically of reverse faulting type. Since the late period of early Pleistocene, India Plate continued to push northward and the compressional deformation of the plateau interior increased continuously, meanwhile, NW-SE extension appeared on the east side of the plateau. This formed a favorable condition for the interior block of the plateau to slide towards east and southeast, causing the faults surrounding the plateau to change from thrust to strike-slip. The contemporary tectonic stress field was formed from the late period of early Pleistocene and continued to present. The direction of maximum principal compressional stress rotated clockwise with respect to the previous tectonic stress field, the stress field was mainly of strike-slip type.
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References
Angelier J. 1979. Determination of the mean principal direction of stresses for a given fault population. Tectonophysics, 56: 17–26
Angelie J. 1984. Tectonic analysis of fault slip data sets. J Geophys Res, 89(B7): 5835–5848
Etchecopar A, Vasseur G, Daignieres M. 1981. An inverse problem in microtectonics for the determination of stress tensor from fault striation analysis. J Struct Geol, 3(1): 51–55
Institute of Geology, SSB, Seismological Bureau of Ningxia Hui Autonomous Region. 1990. Haiyuan Active Fault Zone. Beijing: Seismological Press, 147–149 (in Chinese)
Kan R J, Zhang S C, Yan F T, et al. 1977. Present tectonic stress field and its relation to the characteristics of recent tectonic activity in southwestern China. Acta Geophysica Sinica, 20(1): 96–108 (in Chinese)
Li B Y, Wang F B, Zhang Q S, et al. 1983. Quaternary Geology of Tibet. Beijing: Science Publishing House, 110–129 (in Chinese)
Li F Q, Liu G X. 1986. Current stress state and relative question in China. Acta Seismologica Sinica, 8(2): 156–171 (in Chinese)
Xie F R, Liu G X. 1992. Neotectonic stress field in the central segment of Altun fault belt. Earthquake Research in China, 6(1): 99–112
Xie F R, Zhu J Z, Liang H Q, et al. 1993. Basic characteristics of the modern tectonic stress field in southwest region of China. Acta Seismologica Sinica, 6(4): 843–855
Xie F R, Zhu J Z, Shu S B. 1995. Division of stages of Quaternary tectonic stress field in Xianshuihe fault region. Seismology and Geology, 17(1): 35–43 (in Chinese)
Xu Z H, Wang Y R, Huang Y R, et al. 1987. Sirections of mean stress axes in southwestern China deduced from microearthquake data. Acta Geophysica Sinica, 30(5): 476–486 (in Chinese)
Yan J Q, Shi Z L, Wang S Y, et al. 1979. Some features of the recent tectonic stress field of China and environs. Acta Seismologica Sinica, 1(1): 9–24 (in Chinese)
Yang Y C, Li B Y, Yin Z S, et al. 1983. Tibetan Geomorphology. Beijing: Science Publishing House, 200–212 (in Chinese)
Zoback M L. 1995. Recent state of stress change in the Walker Lane zone, western Basin and Range province, United States. Tectonics, 14(3): 564–593
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Contribution No. 1999A0003, Institute of Crustal Dynamics, China Seismological Bureau.
This study was supported by Chinse Joint Seismological Science Foundation (No. 94013); also was supported by the SSTCC Climb Program 95-S-05.
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Xie, FR., Zhang, SM., Dou, SQ. et al. Evolution characteristics of Quaternary tectonic stress field in the north and east margin of Qinghai-Xizang plateau. Acta Seimol. Sin. 12, 550–561 (1999). https://doi.org/10.1007/s11589-999-0055-9
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DOI: https://doi.org/10.1007/s11589-999-0055-9