Abstract
Geomorphic study on Wujiahe segment of Serteng piedmont fault, Inner Mongolia is made. Through analysis of the available data in combination with the results of predecessors’ studies it can be obtained that average vertical displacement rate is 0.48–0.75 mm/a along the Wujiahe segment since the late Pleistocene (14.450–22.340 ka BP) and 0.56–0.88 mm/a since the early-middle Holocene (5.570–8.830 ka BP). Analyzing paleoseismic phenomena revealed in the excavated 5 trenches in combination with the results of predecessors’ studies of paleoearthquakes on the fault, we determine five paleoseismic events on the Wujiahe segment of Serteng piedmont fault since 27.0 ka BP and the recurrence interval to be about 4.300–4.400 ka. A cluster of paleoearthquakes occurred probably during 8.000–9.000 ka BP and two paleoseismic events in 10.000–20.000 ka BP may be missed. A comparison between height of fault scarps and sum of displacement caused by paleoseismic events revealed in trenches, and recurrence interval of paleoseismic events obtained from average displacement rate along the fault and the dislocation by one event suggest that three paleoseismic events are absent in Alagaitu trench. Two paleoseismic events may be absent on the whole active fault segment.
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References
Crone A J. 1987. Introduction to Direction in Paleoseismology [R]. USGS open file report. 87-683, 1–6.
DENG Qi-dong, Molnar P, Brown E T, et al. 2001. Slip rates and the active characteristic for the Kuerchu segment of Beiluntai fault since Late Pleistocene, Southern Tianshan, China [J]. Inland Earthquakes, 15(4): 289–297 (in Chinese).
DENG Qi-dong, WANG Yi-peng, LIAO Yu-hua, et al. 1984. Collapse wedges of fault scarps and the history of Holocene movement along the Helanshan piedmont fault [J]. Chinese Science Bulletin, 29(9): 557–560 (in Chinese).
DENG Qi-dong, YOU Hui-chuan. 1985. Characteristics of tectonic movement along the fault-depression basin zone around Ordos block [A]. In: Institute of Geology, State Seismological Bureau eds. Research on Recent Crustal Movement (1) [C]. Beijing: Seismological Press, 58–78 (in Chinese).
FANG Zhong-jing, CHEN Shao-ping, WANG Jing-bo, et al. 1989. Paleoseismological profile in Huangtuyao of Huailai county, Hebei Province [J]. Seismology and Geology, 11(2): 66–68 (in Chinese).
Hanks T C, Buckman R C, Lajoie K R, et al. 1984. Modification of wave-cut and faulting-controlled landforms [J]. J Geophys Res, 89: 5 771–5 791.
MAO Feng-ying, ZHANG Pei-zhen. 1995. Progressive constraining method in paleoseismic study and paleoearthquakes along the major active fault zones in northern Xinjiang [A]. In: Editorial Board of Research on Active Faults eds. Research on Active Faults (4) [C]. Beijing: Seismological Press, 153–164 (in Chinese).
RAN Yong-kang. 2001. Problems on indications for discrimination of paleoearthquakes and uncertainty on normal faults in North China [A]. In: LU Yan-chou, GAO Wei-ming, CHEN Guo-xing, et al eds. Neotectonics and Environment [C]. Beijing: Seismological Press, 282–292 (in Chinese).
RAN Yong-kang, FANG Zhong-jing. 1992. Recurrence sequence of paleoearthquakes on north-border fault of Huailai-Zhuolu basin and its segmentation [J]. Earthquake Research in China, 8(3): 74–85 (in Chinese with English abstract).
RAN Yong-kang, FANG Zhong-jing, WANG Jing-bo, et al. 1995a. The good exposure of northwestern fault at the brickfield of Dongyuan village, Huailai county of Hebei Province [A]. In: Editorial Board of Research on Active Faults eds. Research on Active Faults (4) [C]. Beijing: Seismological Press, 116–122 (in Chinese).
RAN Yong-kang, WANG Jing-bo, PENG Si-zhen. 1995b. Paleoseismic traces on south-border fault of Xuanhua basin, Hebei Province [J]. Seismology and Geology, 17(1): 44–46 (in Chinese).
Research Group on Active Fault System around Ordos Block. 1988. Active Fault System around Ordos Block [M]. Beijing: Seismological Press, 39–44 (in Chinese).
Schwartz D P, Coppersmith K J. 1984. Fault behavior and characteristic earthquakes: Examples from the Wasatch and San Andreas fault zones [J]. J Geophys Res, 90: 5 681–5 698.
Wallace R E. 1970. Earthquake recurrence intervals on the San Andreas fault [J]. Geol Soc Amer Bull, 81: 2 875–2 980.
Wallace R E. 1977. Profiles and ages of young fault scarps, north-central Nevada [J]. Geol Soc Amer Bull, 88: 1 267–1 278.
WU Wei-min, NIE Zong-sheng, XU Gui-lin, et al. 1996. Research on the active fault of western segment of the piedmont fault of Mt. Serteng [A]. In: Editorial Board of Research on Active Faults eds. Research on Active Faults (5) [C]. Beijing: Seismological Press, 113–124 (in Chinese).
Yeats R S. 1996. Introduction to special section: Paleoseismology [J]. J Geophys Res, 101: 5 847–5 853.
Yeats R S, Sieh K, Allen C R. 1997. The Geology of Earthquakes [M]. New York: Oxford University Press, 249–300.
YOU Hui-chuan. 1985. Characteristics of geologic structures and their formation mechanism in Hetao fault-depression basin zone [A]. In: Institute of Geology, State Seismological Bureau eds. Research on Recent Crustal Movements (1) [C]. Beijing: Seismological Press, 88–97 (in Chinese).
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Foundation item: State Key Basic Research Development and Programming Project "Mechanism and Prediction of Continental Strong Earthquakes" (G 199804070) and Joint Earthquake Science Foundation of China (100068).
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Yang, Xp., Ran, Yk., Hu, B. et al. Paleoseismic activity on Wujiahe segment of Serteng piedmont fault, Inner Mongolia. Acta Seimol. Sin. 16, 67–78 (2003). https://doi.org/10.1007/s11589-003-0008-7
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DOI: https://doi.org/10.1007/s11589-003-0008-7