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Rupture segmentation and slip partitioning of the mid-eastern part of the Kunlun Fault, north Tibetan Plateau

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Abstract

The Kunlun Fault, an active fault on the border between the Bayan Har and Kunlun-Qaidam blocks, is one of the major left lateral strike-slip faults in the Tibetan Plateau. Previous research has not reached a consensus on agreeable slip rates along much of its length and the slip rate gradient along the eastern part, both of which play critical roles in a range of models for the eastward extrusion and thickened crust of the Tibetan Plateau. New slip rates have been determined at sites along the eastern part of the Kunlun Fault by dating deposits and measuring atop displaced fluvial terrace risers. Field investigations and interpretation of satellite images reveal geometrical features of the fault and the late Quaternary offset, new earthquake ruptures and surface-rupturing segmentation, from which long-term slip rates and earthquake recurrence intervals on the fault are estimated. The tectonic geomorphology method has determined that the long-term horizontal slip rates on the Tuosuohu, Maqin and Maqu segments from west to east are 11.2±1, 9.3±2, and 4.9±1.3 mm/a while their vertical slip rates are 1.2±0.2, 0.7±0.1, and 0.3 mm/a in the late Quaternary. Results indicate that the slip rates regularly decrease along the eastern ∼300 km of the fault from >10 to <5 mm/a. This is consistent with the decrease in the gradient such that at the slip rate break point is at the triple point intersection with the transverse fault, which in turn is transformed to the Awancang Fault. The vector decomposition for this tectonic transformation shows that the western and eastern branches of the Awancang Fault fit the slip-partitioning mode. The slip rate of the southwestern wall is 4.6 mm/a relative to the northeastern wall and the slip direction is 112.1°. The mid-eastern part of the Kunlun Fault can be divided into three independent segments by the A’nyêmaqên double restraining bend and the Xigongzhou intersection zone, which compose the surface rupture segmentation indicators for themselves as well as the ending point of the 1937 M7.5 Tuosuohu earthquake. The average recurrence interval of the characteristic earthquakes are estimated to be 500–1000 a, respectively. The latest earthquake ruptures occurred in AD 1937 on the western Tuosuohu segment, as compared to ∼514–534 a BP on the Maqin segment, and ∼1055 to 1524 a BP on the Maqu segment. This may indicate a unidirectional migration for surface rupturing earthquakes along the mid-eastern Kunlun Fault related to stress triggered between these segments. Meanwhile, the long-term slip rate is obtained through the single event offset and the recurrence interval, which turn out to be the same results as those determined by the offset tectonic geomorphology method, i.e., the decreasing gradient corresponds to the geometrical bending and the fault’s intersection with the transverse fault. Therefore, the falling slip rate gradient of the mid-eastern Kunlun Fault is mainly caused by eastward extension of the fault and its intersection with the transverse fault.

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References

  1. Deng Q D, Zhang P Z, Ran Y K, et al. Basic characteristics of active tectonics of China. Sci China Ser D-Earth Sci, 2002, 46: 356–372

    Google Scholar 

  2. Department of Earthquake Disaster Prevention, China Earthquake Administration. The Catalogue of Chinese Historical Strong Earthquakes (23 Century BC-1911 AD) (in Chinese). Beijing: Seismological Press, 1995. 3–471

    Google Scholar 

  3. Department of Earthquake Disaster Prevention, China Earthquake Administration. The Catalogue of Modern Earthquakes of China (1912 A.D–1990 A.D) (in Chinese). Beijing: Science and Technology Press, 1999. 59–233

    Google Scholar 

  4. Xu X W, Chen W B, Yu G H, et al. Characteristic features of the Hoh Saihu (Kunlunshan) Earthquake (MS8.1), Northern Tibetan Plateau, China (in Chinese). Seismol Geol, 2002, 24: 1–13

    Google Scholar 

  5. Seismologic Bureau of Qinghai Province, The Institute of Crustal Dynamics of China Earthquake Administration. Eastern Kunlun Active Fault Zone (in Chinese). Beijing: Seismological Press, 1999. 12–164

    Google Scholar 

  6. Xu X W, Chen W B, Ma W T, et al. Surface rupture of the Kunlun earthquake (M s8.1), northern Tibetan Plateau, China. Seismol Res Lett, 2002, 73: 884–892

    Article  Google Scholar 

  7. Xu X W, Yu G H, Klinger Y, et al. Reevaluation of surface rupture parameters and faulting segmentation of the 2001 Kunlunshan earth-quake (M w7.8), northern Tibetan Plateau, China. J Geophys Res, 2006, 111: B05316, doi: 10. doi: 10.1029/2004JB003488

    Article  Google Scholar 

  8. Wen X Z, Yi G X, Xu X W. Background and recursory seismicities along and surrounding the Kunlun fault before the M s8.1, 2001, Kokoxili earthquake, China. J Asian Earth Sci, 2007, 30: 63–72

    Article  Google Scholar 

  9. Van der Woerd J, Tapponnier P, Frederick J R, et al. Uniform postglacial slip-rate along the central 600 km of the Kunlun Fault (Tibet), from 26Al, 10Be, and 14C dating of riser offsets, and climatic origin of the regional morphology. Geophys J Int, 2002,148: 356–388

    Article  Google Scholar 

  10. Li C F, He Q L, Zhao G G. Holocene slip rate along the eastern segment of the Kunlun Fault (in Chinese). Seismol Geol, 2004, 26: 676–687

    Google Scholar 

  11. Li C F, He Q L, Zhao G G. Paleoearthquake studies on the eastern section of the Kunlun Fault (in Chinese). Acta Seismol Sin, 2005, 25: 60–67

    Google Scholar 

  12. Ma Y S, Shi W, Zhang Y Q, et al. Characteristics of the activity of the Maqu segment of the East Kunlun active fault belt and its eastward extension (in Chinese). Geol Bull Chin, 2005, 24: 30–35

    Google Scholar 

  13. Li C X, Dai H G, Chen Y M, et al. The discussion on some problems of the M s7.5 Tuosuo Lake earthquake in 1937 (in Chinese). Seismol Geol, 2006, 28:12–21

    Google Scholar 

  14. He W G, Yuan D Y, Xiong Z, et al. Study on characteristics of new activity and Holocene slip rate along Maqu Fault of East Kunlun active fault (in Chinese). Earthquake, 2006, 26: 67–75

    Google Scholar 

  15. He W G, Xiong Z, Yuan D Y, et al. Paleo-earthquake study on the Maqu Fault of East Kunlun active fault (in Chinese). Earthq Res Chin, 2006, 22: 126–134

    Google Scholar 

  16. Kirby E, Harkins N, Wang E Q, et al. Slip rate gradients along the eastern Kunlun fault. Tectonics, 2007, 26: TC2010, doi: 10. doi: 10.1029/2006TC002033

    Article  Google Scholar 

  17. Guo J M, Lin A M, Sun G Q, et al. Surface ruptures associated with the 1937 M7.5 Tuosuo Lake and the 1963 M7.0 Alake Lake earthquakes and the paleoseismicity along the Tuosuo Lake segment of the Kunlun Fault, Northern Tibet. Bull Seismol Soc Amer, 2007, 97: 474–496

    Article  Google Scholar 

  18. Harkins N, Kirby E. Fluvial terrace riser degradation and determination of slip rates on strike-slip Faults: An example from the Kunlun fault, China. Geophys Res Lett, 2008, 35: L05406, doi: 10. doi: 10.1029/2007GL033073

    Article  Google Scholar 

  19. Lin A M, Guo J M. Nonuniform slip rate and millennial recurrence interval of large earthquakes along the eastern segment of the Kunlun Fault, Northern Tibet. Bull Seismol Soc Amer, 2008, 98: 2866–2878

    Article  Google Scholar 

  20. The Second Regional Geological Survey Team of Qinghai Province, Bureau of Geology and Mineral Resources of Qinghai. Report on Regional Geological Survey of the People’s Republic of China, Guoluo Tibetan Autonomous Prefecture and Youyun Community Assemblage with Scale 1:200000, Geological Part (in Chinese). 1986. 210–221

  21. Deng Q D, Ran Y K, Yang X P, et al. Map of Active Tectonics in China (in Chinese). Beijing: Seismological Press, 2007

    Google Scholar 

  22. Cunningham W D, Mann P. Tectonics of strike-slip restraining and releasing bends. Geol Soc Lond Spec Publ, 2007, 290: 1–12

    Article  Google Scholar 

  23. Meiraux A S, Ryerson F J, Tapponnier P, et al. Rapid slip along the central Altyn Tagh fault: Morphochronological evidence from Cherchen He and Sulamu Tagh. J Geophys Res, 2004, 109: B06401, doi:10.doi:10.1029/2003JB002558

    Article  Google Scholar 

  24. Xu X W, Tapponnier P. Van der Woerd J, et al. Late Quaternary sinistral slip rate along the Altyn Tagh fault and its structural transformation model. Sci China Ser D-Earth Sci, 2005, 48: 384–397

    Article  Google Scholar 

  25. Cowgill E. Impact of riser reconstructions on estimation of secular variation in rates of strike-slip faulting: Revisiting the Cherchen River site along the Altyn Tagh Fault, NW China. Earth Planet Sci Lett, 2007, 254: 239–255

    Article  Google Scholar 

  26. Zhang P Z, Molnar P, Xu X W. Late Quaternary and present-day rates of slip along the Altyn Tagh Fault, northern margin of the Tibetan Plateau. Tectonics, 2007, 26: TC5010, doi: 10. doi: 10.1029/ 2006TC002014

    Article  Google Scholar 

  27. Sieh K E, Jahns R H. Holocene activity of the San Andreas fault at Wallace Creek, Callifornia. Geol Soc Am Bull, 1984, 95: 883–896

    Article  Google Scholar 

  28. Zhang P Z, Li C Y, Mao F Y. Strath terrace formation and strike-slip faulting (in Chinese). Seismol Geol, 2008, 30: 44–57

    Google Scholar 

  29. Wallace R E. Earthquake recurrence intervals on the San Andreas fault. Geol Soc Am Bull, 1970, 81: 2875–2890

    Article  Google Scholar 

  30. Chen W B. Principal features of ectonic deformation and their generation mechanism in the Hexi Corridor and its adjacent regions since Late Quaternary (in Chinese). Dissertation for the Doctoral Degree. Beijing: Institute of Geology, China Earthquake Administration, 2003. 94–100

    Google Scholar 

  31. Bowman D, King G, Tapponnier P. Slip partitioning by elastoplastic propagation of oblique slip at depth. Science, 2003, 300: 1121–1123

    Article  Google Scholar 

  32. Liu G X. Eastern Kunlun active fault zone and its seismic activity (in Chinese). Earthq Res Chin, 1996, 12: 119–126

    Google Scholar 

  33. Liu G X, Xiao Z M, Xie X S, et al. The surface rupture zone of 1937 Huashixia earthquake (M=7.5) in Qinghai and its related problems (in Chinese). In: Institute of Geology, State Seismological Bureau, ed. Research on Active Fault (5). Beijing: Seismological Press, 1996. 136–153

    Google Scholar 

  34. Li L H, Jia Y H. Characteristics of deformation band of the 1937 Tuo-suohu earthquake (M=7.5) in Qinghai (in Chinese). Northwestern Seismol J, 1981, 3: 6l–65

    Google Scholar 

  35. Li C X. The Long-term faulting behavior of the eastern segment (Maqin-Maqu) of the East Kunlun Fault since the Late Quaternary (in Chinese). Dissertation for the Doctoral Degree. Beijing: Institute of Geology of China Earthquake Administration, 2009. 101–117

    Google Scholar 

  36. Xu X W, Wen X Z, Yu G H, et al. Average slip rate, earthquake rupturing segmentation and recurrence behavior on the Litang fault zone, western Sichuan Province, China. Sci China Ser D-Earth Sci, 2005, 48: 1183–1196

    Article  Google Scholar 

  37. Sanders C O. Interaction of the San Jacinto and San Andreas fault zones, southern California: Triggered earthquake migration and coupled recurence intervals. Science, 1993, 260: 973–976

    Article  Google Scholar 

  38. Stein R S, Barka A A, Dieterich J H. Progressive failure on the North Anatolian fault since 1939 by earthquake stress triggering. Geophys J Int, 1997, l28: 594–604

    Article  Google Scholar 

  39. DePolo C M, Clark D G, Slemmons D B, et al. Historical surface faulting in the basin and range province, western North America: Implications for fault segmentation. J Struct Geol, 1991, 13: 123–136

    Article  Google Scholar 

  40. Machette M N, Personius S F, Nelson A R, et al. The Wasatch fault zone Utah segmentation and history of Holocene earthquake. J Struct Geol, 1991, 13: 137–149

    Article  Google Scholar 

  41. Ding G Y, Tian Q J, Kong F C, et al. Segmentation of Active Faults: Principles, Approaches and Application (in Chinese). Beijing: Seismological Press, 1993. 1–143

    Google Scholar 

  42. Deng Q D, Zhang P Z. Principles and methods for segmentation of active faults. In: Institute of Geology. State Seismological Bureau (ed). Research on Recent Crustal Movement (6) (in Chinese). Beijing: Seismological Press, 1995. 196–207

    Google Scholar 

  43. King G, Nabelek J. Role of fault bends in the initiation and termination of earthquake rupture. Science, 1985, 228: 984–987

    Article  Google Scholar 

  44. Kirby E, Whipple K X, Burchfiel B C, et al. Neotectonics of the mount Min, China: Implications for mechanisms driving Quaternary deformation along the eastern margin of the Tibetan Plateau. Geol Soc Am Bull, 2000, 112: 375–393

    Article  Google Scholar 

  45. Chen S F, Wilson C J L, Deng Q D, et al. Active faulting and block movement associated with large earthquakes in the Minshan and Longmen Mountains, northeastern Tibetan Plateau. J Geophys Res, 1994, 99: 24025–24038

    Article  Google Scholar 

  46. Zhang P Z. A study on the present tectonic deformation, strain partitioning and deep dynamic process of West Sichuan region on eastern margin of Qinghai-Tibet Plateau (in Chinese). Sci China Ser D-Earth Sci, 2008, 38: 1041–1056

    Google Scholar 

  47. Tapponnier P, Molnar P. Slip-line field theory and large-scale continental tectonics. Nature, 1976, 264: 319–324

    Article  Google Scholar 

  48. Tapponnier P, Xu Z Q, Roger F, et al. Geology-oblique stepwise rise and growth of the Tibetan Plateau. Science, 2001, 294: 1671–1677

    Article  Google Scholar 

  49. Xu X W, Wen X Z, Yu G H, et al. Coseimic reverse- and oblique-slip surface fault in generated by the 2008 M w 7.9 Wenchuan earthquake, China. Geology, 2009, 37: 515–518

    Article  Google Scholar 

  50. England P C, Molnar P. Right-lateral shear and rotation as the explanation for strike-slip faulting in eastern Tibet. Nature, 1990, 344: 140–142

    Article  Google Scholar 

  51. England P, Molnar P. Acitve deformation of Asia: From kinematics to dynamatics. Science, 1997, 278: 647–650

    Article  Google Scholar 

  52. Xu X W, Wen X Z, Yu G H, et al. Discovery of the Longriba fault zone in eastern Bayan Har block, China and its tectonic implication. Sci China Ser D-Earth Sci, 2008, 51: 1209–1223

    Article  Google Scholar 

  53. Zhou R J, Li Y, Densmore A L, et al. Active tectonics of the eastern margin of the Tibetan Plateau (in Chinese). J Mineral Petrol, 2006, 26: 40–51

    Google Scholar 

  54. Li S L, Zhang X K, Zhang C K, et al. A preliminary study on the crustal velocity of Maqin-Lanzhou-Jingbian by means of deep seismic sounding profile (in Chinese). Chin J Geophys, 2002, 45: 210–217

    Google Scholar 

  55. Zhao G Z, Tang J, Zhan Y, et al. Relation between electricity structure of the crust and deformation of crustal blocks on the northeastern margin of Qinghai-Tibet Plateau. Sci China Ser D-Earth Sci, 2005, 48: 1613–1626

    Article  Google Scholar 

  56. Tang J, Zhan Y, Zhao G Z, et al. Electrical conductivity structure of the crust and upper mantle in the northeastern margin of the Qinghai-Tibet Plateau along the Maqên-Lanzhou-Jingbian profile (in Chinese). Chin J Geophys, 2005, 48: 1205–1216

    Google Scholar 

  57. Zhan Y, Zhao G Z, Wang J J, et al. Crustal electric structure of Haiyuan arcuate tectonic region in the northeastern margin of Qinghai-Xizang Plateau, China (in Chinese). Acta Seismol Sin, 2005, 27: 431–440

    Google Scholar 

  58. Lai X L, Li S L, Zhang X K, et al. A study on the complexity at the crust-upper mantle transition zone along Maqin-Lanzhou Jingbian Deep Seismic Sounding (DSS) profile (in Chinese). Prog Geophys, 2001, 16: 65–72

    Google Scholar 

  59. Lai X L, Zhang X K, Fang S M. Study of crust-mantle transitional zone along the northeast margin of Qinghai-Xizang Plateau (in Chinese). Acta Seismol Sin, 2004, 26: 132–139

    Google Scholar 

  60. Yao Z X, Wang C Y, Pei Z L. Finite difference numerical simulation of trapped waves in the Kunlun fault zone (in Chinese). Chin J Geophys, 2007, 50: 760–769

    Google Scholar 

  61. Duan Y H, Zhang X K, Liu Z, et al. Crustal structure using receiver function in the east part of A’nyemaqen Suture Zone (in Chinese). Acta Seismol Sin, 2007, 29: 483–491

    Google Scholar 

  62. Zhang X K, Yang Z X, Xu C F, et al. Upper crust structure of eastern A’nyêmaqên Suture Zone: Results of Barkam-Luqu-Gulang Deep Seismic Sounding Profile (in Chinese). Acta Seismol Sin, 2007, 29: 592–604

    Google Scholar 

  63. Parsons T, Chen J, Kirby E. Stress changes from the 2008 Wenchuan earthquake and increase hazard in the Sichuan basin. Nature, 2008, 454: 509–510

    Article  Google Scholar 

  64. Shan B, Xiong X, Zheng Y, et al. Stress changes on major faults caused by M w7.9 Wenchuan earthquake, May 12, 2008. Sci China Ser D-Earth Sci, 2009, 52: 593–601

    Article  Google Scholar 

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Authors and Affiliations

  1. Institute of Geology, China Earthquake Administration, National Center of Active Fault Studies, Beijing, 100029, China

    ChenXia Li, XiWei Xu, RongZhang Zheng, GuiHua Chen, Hu Yang, YanFen An & Xiang Gao

  2. Lanzhou Seismological Institute of China Earthquake Administration, Lanzhou, 730000, China

    ChenXia Li

  3. Earthquake Administration of Sichuan Province, Chengdu, 610041, China

    XueZe Wen

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  1. ChenXia Li
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Li, C., Xu, X., Wen, X. et al. Rupture segmentation and slip partitioning of the mid-eastern part of the Kunlun Fault, north Tibetan Plateau. Sci. China Earth Sci. 54, 1730–1745 (2011). https://doi.org/10.1007/s11430-011-4239-5

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