王伟,
刘静,
Vincent Godard 等
.2018.汶川地震同震滑坡物质在震区的滞留和运移及其对龙门山地形演化的影响. 地球物理学报,61(5): 1970-1983,doi: 10.6038/cjg2018M0074
WANG Wei,
LIU Jing,
Vincent Godard et al
.2018.Retention and transport of coseismic landslide sediments induced by the Wenchuan earthquake, and its implication for the topographic evolution of the Longmen Shan.Chinese Journal Of Geophysics,61(5): 1970-1983,doi: 10.6038/cjg2018M0074
Retention and transport of coseismic landslide sediments induced by the Wenchuan earthquake, and its implication for the topographic evolution of the Longmen Shan
WANG Wei1, LIU Jing1, Vincent Godard2, ZHANG JinYu1, XU Chong3, LI ZhiGang4, XU XinYue1, XU Qiang5, WANG Peng1, XIE KeJia6
1. State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China; 2. Aix-Marseille Université, CNRS, IRD, Collège de France, CEREGE, Aix en Provence 13100, France; 3. Key Laboratory of Active Tectonics and Volcano, Institute of Geology, China Earthquake Administration, Beijing 100029, China; 4. Guangdong Provincial Key Laboratory of Geodynamics and Geohazards, School of Earth Sciences and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; 5. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China; 6. Henan Province Non-Ferrous Metals Geological Mineral Resources Bureau, Zhengzhou 450016, China
Abstract:The 2008 MW7.9 Wenchuan earthquake, China, ruptured the parallel Beichuan and Pengguan faults along the Longmen Shan, eastern margin of the Tibetan plateau, which induced a large amount of landslides, volume comparable to the coseismic uplift. However, there lacks systematic data and research to quantify the removal of these loose materials and temporal variation of fluvial erosion rates, which is central to understand the mass redistribution along the Longmen Shan and the role of such earthquake in building topography in active mountain ranges. Over the period of 2008—2013 after the Wenchuan earthquake, we collected a series of river sand samples along three tributaries of the Tuojiang River, including the Jianjiang, Shiting Jiang, and Mianyuan River, and measured the detrital quartz 10Be concentration. Together with published river sand 10Be concentration prior to the Wenchuan earthquake, our results show that:(1) Detrital 10Be concentration declined dramatically after the Wenchuan earthquake, which shows the dilution effect of co-seismic landslides; (2) Fluvial erosion rate in the upstream of Mianyuan River increased to 1.3~18.5 times of the pre-earthquake level, which indicates there occurs an obvious increase of erosion rates shortly after the earthquake; (3) Under the assumption of constant erosion rate, a simple calculation indicates the river will take at least 100~4000 years to move away these loose materials, comparable to the return time of Wenchuan-type large-magnitude earthquake in the Longmen Shan. Considering the effect of isostasy, we think that the Wenchuan earthquake will lead to a net material surplus in the Longmen Shan; and (4) The vertical motion and denudation at surface during the interseismic period and cosesimic rupture have different spatial pattern, which together control the topographic evolution of eastern Tibet.
Ansberque C, Godard V, Bellier O, et al. 2015. Denudation pattern across the Longriba fault system and implications for the geomorphological evolution of the eastern Tibetan margin. Geomorphology, 246: 542-557. Arne D, Worley B, Wilson C, et al. 1997. Differential exhumation in response to episodic thrusting along the eastern margin of the Tibetan Plateau. Tectonophysics, 280(3-4): 239-256. Arnold M, Merchel S, Bourlès D L, et al. 2010. The French accelerator mass spectrometry facility ASTER: Improved performance and developments. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 268(11-12): 1954-1959. Arnold M, Aumaître G, Bourlès D L, et al. 2013. The French accelerator mass spectrometry facility ASTER after 4 years: Status and recent developments on 36Cl and 129I. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 294: 24-28. Burchfiel B C, Chen Z L, Liu Y P, et al. 1995. Tectonics of the Longmen Shan and adjacent regions, central China. International Geology Review, 37(8): 661-735. Chen H X, Zhang L M, Chang D S, et al. 2012. Mechanisms and runout characteristics of the rainfall-triggered debris flow in Xiaojiagou in Sichuan Province, China. Natural Hazards, 62(3): 1037-1057. China Earthquake Administration. 2009. Focal depth of M8.0 Wenchuan earthquake. (in Chinese). http://www.cea.gov.cn/manage/html/8a8587881632fa5c0116674a018300cf/_content/09_05/08/1241779378191. html. Dadson S J, Hovius N, Chen H, et al. 2004. Earthquake-triggered increase in sediment delivery from an active mountain belt. Geology, 32(8): 733-736. Dai F C, Xu C, Yao X, et al. 2011. Spatial distribution of landslides triggered by the 2008 MS8.0 Wenchuan earthquake, China. Journal of Asian Earth Sciences, 40(4): 883-895. Deng Q D, Chen S F, Zhao X L. 1994. Tectonics, scismisity and dynamics of Longmenshan Mountains and its adjacent regions. Seismology and Geology (in Chinese), 16(4): 389-403. Densmore A L, Ellis M A, Li Y, et al. 2007. Active tectonics of the Beichuan and Pengguan faults at the eastern margin of the Tibetan Plateau. Tectonics, 26(4): TC4005, doi: 10.1029/2006TC001987. Densmore A L, Parker R N, Rosser N J, et al. 2012. Reply to ‘Isostasy can't be ignored’. Nature Geoscience, 5(2): 83-84. Dunne J, Elmore D, Muzikar P. 1999. Scaling factors for the rates of production of cosmogenic nuclides for geometric shielding and attenuation at depth on sloped surfaces. Geomorphology, 27(1-2): 3-11. England P, Molnar P. 1990. Surface uplift, uplift of rocks, and exhumation of rocks. Geology, 18(12): 1173-1177. Fan X M, Van Westen C J, Korup O, et al. 2012. Transient water and sediment storage of the decaying landslide dams induced by the 2008 Wenchuan earthquake, China. Geomorphology, 171-172: 58-68. Feng S Y, Zhang P Z, Liu B J, et al. 2015. Deep crustal deformation of the Longmen Shan, eastern margin of the Tibetan Plateau, from seismic reflection and finite element modeling. Journal of Geophysical Research: Solid Earth, 121(2): 767-787. Fidlding E J, Sladen A, Li Z H, et al. 2013. Kinematic fault slip evolution source models of the 2008 M7.9 Wenchuan earthquake in China from SAR interferometry, GPS and teleseismic analysis and implications for Longmen Shan tectonics. Geophysical Journal International, 194(2): 1138-1166. Fu B H, Shi P L, Guo H D, et al. 2011. Surface deformation related to the 2008 Wenchuan earthquake, and mountain building of the Longmen Shan, eastern Tibetan Plateau. Journal of Asian Earth Sciences, 40(4): 805-824. Ge Y G, Song G H, Guo Z X, et al. 2012. Characteristics and causes of 8.18 debris flow hazards at the Longmenshan Town, Pengzhou, Sichuan. Journal of Hydraulic Engineering (in Chinese), 43(S2): 147-154. Godard V, Pik R, Lavé J, et al. 2009. Late Cenozoic evolution of the central Longmen Shan, eastern Tibet: Insight from (U-Th)/He thermochronometry. Tectonics, 28(5): TC5009, doi:10.1029/2008TC002407. Godard V, Lavé J, Carcaillet J, et al. 2010. Spatial distribution of denudation in Eastern Tibet and regressive erosion of plateau margins. Tectonophysics, 491(1-4): 253-274. Hao M, Wang Q L, Shen Z K, et al. 2014. Present day crustal vertical movement inferred from precise leveling data in eastern margin of Tibetan Plateau. Tectonophysics, 632: 281-292. Hovius N, Meunier P, Lin C W, et al. 2011. Prolonged seismically induced erosion and the mass balance of a large earthquake. Earth and Planetary Science Letters, 304(3-4): 347-355. Huang R Q. 2011. After effect of geohazards induced by the Wenchuan earthquake. Journal of Engineering Geology (in Chinese), 19(2): 145-151. Huang R Q, Fan X M. 2013. The landslide story. Nature Geoscience, 6(5): 325-326. Huang R Q, Li W L. 2014. Post-earthquake landsliding and long-term impacts in the Wenchuan earthquake area, China. Engineering Geology, 182: 111-120. Huang X, Tang C, Le M H, et al. 2013. Mechanism and characteristics on debris flow hazards in Yinchanggou area triggered by rainstorm on August 18. Journal of Engineering Geology (in Chinese), 21(5): 761-769. Koi T, Hotta N, Ishigaki I, et al. 2008. Prolonged impact of earthquake-induced landslides on sediment yield in a mountain watershed: The Tanzawa region, Japan. Geomorphology, 101(4): 692-702. Lal D. 1991. Cosmic ray labeling of erosion surfaces: In situ nuclide production rates and erosion models. Earth and Planetary Science Letters, 104(2-4): 424-439. Li G, West A J, Densmore A L, et al. 2014. Seismic mountain building: Landslides associated with the 2008 Wenchuan earthquake in the context of a generalized model for earthquake volume balance. Geochemistry, Geophysics,Geosystems, 15(4): 833-844. Li G, West A J, Densmore A L, et al. 2016. Connectivity of earthquake-triggered landslides with the fluvial network: Implications for landslide sediment transport after the 2008 Wenchuan earthquake. Journal of Geophysical Research: Earth Surface, 121(4): 703-724. Li H B, Fu X F,Van Der Woerd J, et al. 2008. Co-seisimic surface rupture and dextral-slip oblique thrusting of the MS8.0 Wenchuan earthquake.Acta Geologica Sinica (in Chinese), 82(12): 1623-1643. Li X J, Zhou Z H, Yu H Y, et al. 2008. Strong motion observations and recordings from the great Wenchuan Earthquake. Earthquake Engineering and Engineering Vibration, 7(3): 235-246. Li Z G, Liu-Zeng J, Jia D, et al. 2016. Quaternary activity of the range front thrust system in the Longmen Shan piedmont, China, revealed by seismic imaging and growth strata. Tectonics, 35(12): 2807-2827, doi: 10.1002/2015TC004093. Lin G W, Chen H, Chen Y H, et al. 2008. Influence of typhoons and earthquakes on rainfall-induced landslides and suspended sediments discharge. Engineering Geology, 97(1-2): 32-41. Liu F, Fu B H, Yang S H. 2013. Time response of river evacuation of great earthquake-induced landslide mass in the Longmen Shan region: A cast study of the 2008 Wenchuan great earthquake. Chinese Journal of Geophysics (in Chinese), 56(5): 1517-1525, doi:10.6038/cjg20130510. Liu F, Yang S H. 2015. The effect of the Wenchuan earthquake on the fluvial morphology in the Longmen Shan, eastern Tibetan Plateau: Discussion and speculation. Quaternary International, 371: 280-289. Liu J, Zhang Z H, Wen L,et al. 2008. The MS8.0 Wenchuan earthquake co-seismic rupture and its tectonic implications—An out-of sequence thrusting event with slip partitioned on multiple faults. Acta Geologica Sinica (in Chinese), 82(12): 1707-1722. Liu J, Ji C, Zhang J Y, et al. 2015. Tectonic setting and general features of coseismic rupture of the 25 April, 2015 MW7.8 Gorkha, Nepal earthquake. Chinese Science Bulletin (in Chinese), 60(27): 2640-2655. Liu-Zeng J, Zhang Z, Wen L, et al. 2009. Co-seismic ruptures of the 12 May 2008, MS8.0 Wenchuan earthquake, Sichuan: East-west crustal shortening on oblique, parallel thrusts along the eastern edge of Tibet. Earth and Planetary Science Letters, 286(3-4): 355-370. Liu-Zeng J, Wen L, Oskin M, et al. 2011. Focused modern denudation of the Longmen Shan margin, eastern Tibetan Plateau. Geochemistry Geophysics Geosystems, 12(11): Q11007, doi:10.1029/2011GC003652. Liu-Zeng J, Wang P, Zhang Z H, et al. 2017. Liquefaction in western Sichuan Basin during the 2008 MW7.9 Wenchuan earthquake, China. Tectonophysics, 694: 214-238. Molnar P. 2012. Isostasy can't be ignored. Nature Geoscience, 5(2): 83. New M, Lister D, Hulme M, et al. 2002. A high-resolution data set of surface climate over global land areas. Climate Research, 21(1): 1-25. Ni H Y, Zheng W M, Tie Y B, et al. 2012. Formation and characteristics of post-earthquake debris flow: A case study from Wenjia gully in Mianzhu, Sichuan, SW China. Natural Hazards, 61(2): 317-335. Nishiizumi K, Imamura M, Caffee M W, et al. 2007. Absolute calibration of 10Be AMS standards. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 258(2): 403-413. Ouimet W B. 2010. Landslides associated with the May 12, 2008 Wenchuan earthquake: Implications for the erosion and tectonic evolution of the Longmen Shan. Tectonophysics, 491(1-4): 244-252. Paola C, Parker G, Seal R, et al. 1992. Downstream fining by selective deposition in a laboratory flume. Science, 258(5089): 1757-1760. Parker R N, Densmore A L, Rosser N J, et al. 2011. Mass wasting triggered by the 2008 Wenchuan earthquake is greater than orogenic growth. Nature Geoscience, 4(7): 449-452. Pearce A J, Watson A J. 1986. Effects of earthquake-induced landslides on sediment budget and transport over a 50-yr period. Geology, 14(1): 52-55. Ran Y K, Chen L C, Chen J, et al. 2010. Paleoseismic evidence and repeat time of large earthquakes at three sites along the Longmenshan fault zone. Tectonophysics, 491(1-4): 141-153. Ran Y K, Chen W S, Xu X W, et al. 2013. Paleoseismic events and recurrence interval along the Beichuan-Yingxiu fault of Longmenshan fault zone, Yingxiu, Sichuan, China. Tectonophysics, 584: 81-90. Richardson N J, Densmore A L, Seward D, et al. 2008. Extraordinary denudation in the Sichuan Basin: Insights from low-temperature thermochronology adjacent to the eastern margin of the Tibetan Plateau. Journal of Geophysical Research: Solid Earth, 113(B4): B04409, doi:10.1029/2006JB004739. Stone J O. 2000. Air pressure and cosmogenic isotope production. Journal of Geophysical Research, 105(B10): 23753-23759. Tang C, Zhu J, Li W L, et al. 2009. Rainfall-triggered debris flows following the Wenchuan earthquake. Bulletin of Engineering Geology and the Environment, 68(2): 187-194. Tang C, Van Asch T W J, Chang M, et al. 2012. Catastrophic debris flows on 13 August 2010 in the Qingping area, southwestern China: The combined effects of a strong earthquake and subsequent rainstorms. Geomorphology, 139-140: 559-576. USGS National Earthquake Information Center. 2008. M7.9-Eastern Sichuan, China. https://earthquake.usgs.gov/earthquakes/eventpage/usp000g650#origin. Vergne J, Cattin R, Avouac J P. 2001. On the use of dislocations to model interseismic strain and stress build-up at intracontinental thrust faults. Geophysical Journal International, 147(1): 155-162. Wang E, Kirby E, Furlong K P, et al. 2012. Two-phase growth of high topography in eastern Tibet during the Cenozoic. Nature Geoscience, 5(9): 640-645. Wang G H, Huang R Q, Kamai T, et al. 2013. The internal structure of a rockslide dam induced by the 2008 Wenchuan (MW7.9) earthquake, China. Engineering Geology, 156: 28-36. Wang J, Jin Z D, Hilton R G, et al. 2015. Controls on fluvial evacuation of sediment from earthquake-triggered landslides. Geology, 43(2): 115-118. Wang W, Godard V, Liu-Zeng J, et al. 2017. Perturbation of fluvial sediment fluxes following the 2008 Wenchuan earthquake. Earth Surface Processes and Landforms, 42(15): 2611-2622. Wang Z Y, Shi W J, Liu D D. 2011. Continual erosion of bare rocks after the Wenchuan earthquake and control strategies. Journal of Asian Earth Sciences, 40(4): 915-925. Wen L, Liu J, Oskin M,et al. 2012. Pattern of modern denudation in the Longmen Shan, eastern Tibetan Plateau: Tectonic controls on focused erosion along the plateau margin. Quaternary Science (in Chinese), 32(5): 968-985. West A J, Hetzel R, Li G, et al. 2014. Dilution of 10Be in detrital quartz by earthquake-induced landslides: Implications for determining denudation rates and potential to provide insights into landslide sediment dynamics. Earth and Planetary Science Letters, 396: 143-153. Wilson C J L, Fowler A P. 2011. Denudational response to surface uplift in east Tibet: Evidence from apatite fission-track thermochronology. GSA Bulletin, 123(9-10): 1966-1987. Xu C, Xu X W, Wu X Y, et al. 2013. Detailed catalog of landslides triggered by the 2008 Wenchuan earthquake and statistical analyses of their spatial distribution. Journal of Engineering Geology (in Chinese), 21(1): 25-44. Xu C, Xu X W, Yao X, et al. 2014. Three (nearly) complete inventories of landslides triggered by the May 12, 2008 Wenchuan MW7.9 earthquake of China and their spatial distribution statistical analysis. Landslides, 11(3): 441-461. Xu Q, Li W L. 2010. Distribution of large-scale landslides induced by the Wenchuan earthquake.Journal of Engineering Geology (in Chinese), 18(6): 818-826. Xu Q. 2010. The 13 August 2010 catastrophic debris flow in Sichuan Province: Characteristics, genetic mechanism and suggestions. Journal of Engineering Geology (in Chinese), 18(5): 596-608. Xu Q, Zhang S, Li W L, et al. 2012. The 13 August 2010 catastrophic debris flows after the 2008 Wenchuan earthquake, China. Natural Hazards and Earth System Sciences, 12(1): 201-216. Xu X W, Wen X Z, Ye J Q, et al. 2008. The MS8.0 Wenchuan earthquake surface ruptures and its seismogenic structure. Seismology and Geology (in Chinese), 30(3): 597-629. Xu X W, Wen X Z, Yu G H, et al. 2009. Coseismic reverse-and oblique-slip surface faulting generated by the 2008 MW7.9 Wenchuan earthquake, China. Geology, 37(6): 515-518. Zhang P Z, Wen X Z, Shen Z K, et al. 2010. Oblique, high-angle, listric-reverse faulting and associated development of strain: The Wenchuan earthquake of May 12, 2008, Sichuan, China. Annual Review of Earth and Planetary Sciences, 38(1): 353-382. Zhang P Z. 2013. Beware of slowly slipping faults. Nature Geoscience, 6(5): 323-324. Zhang S, Zhang L M, Lacasse S, et al. 2016. Evolution of mass movements near epicentre of Wenchuan earthquake, the First Eight Years. Scientific Reports, 6: 36154. Zhang S, Zhang L M. 2017. Impact of the 2008 Wenchuan earthquake in China on subsequent long-term debris flow activities in the epicentral area. Geomorphology, 276: 86-103. Zhang Y S, Cheng Y L, Yin Y P, et al. 2014. High-position debris flow: A long-term active geohazard after the Wenchuan earthquake. Engineering Geology, 180: 45-54. Zhou R J, Lai M, Yu H, et al. 2010. Strong motion records of Wenchuan MS8.0 earthquake from digital strong earthquake networks in Sichuan and its neighbouring regions. Chinese Journal of Rock Mechanics and Engineering (in Chinese), 29(9): 1850-1858. 附中文参考文献 邓起东, 陈社发, 赵小麟. 1994. 龙门山及其邻区的构造和地震活动及动力学. 地震地质, 16(4): 389-403. 葛永刚, 宋国虎, 郭朝旭等. 2012. 四川彭州龙门山镇8·18泥石流灾害特征与成灾模式分析. 水利学报, 43(S2): 147-154. 黄润秋. 2011. 汶川地震地质灾害后效应分析. 工程地质学报, 19(2): 145-151. 黄勋, 唐川, 乐茂华等. 2013. 汶川震区银厂沟区域8·18暴雨泥石流灾害成灾机理与特征. 工程地质学报, 21(5): 761-769. 李海兵, 付小方, Van Der Woerd J等. 2008. 汶川地震(MS8.0)地表破裂及其同震右旋斜向逆冲作用. 地质学报, 82(12): 1623-1643. 刘锋, 付碧宏, 杨顺虎, 2013. 龙门山地区类似2008年汶川大地震滑坡物质河流卸载时间的定量估算. 地球物理学报, 56(5): 1517-1525, doi:10.6038/cjg20130510. 刘静, 张智慧, 文力等. 2008. 汶川8级大地震同震破裂的特殊性及构造意义——多条平行断裂同时活动的反序型逆冲地震事件. 地质学报, 82(12): 1707-1722. 刘静, 纪晨, 张金玉等. 2015. 2015年4月25日尼泊尔MW7.8级地震的孕震构造背景和特征. 科学通报, 60(27): 2640-2655. 文力, 刘静, Oskin M等. 2012. 活动构造对高原边界侵蚀速率空间分布的控制作用——以龙门山地区为例. 第四纪研究, 32(5): 968-985. 许冲, 徐锡伟, 吴熙彦等. 2013. 2008年汶川地震滑坡详细编目及其空间分布规律分析. 工程地质学报, 21(1): 25-44. 许强, 李为乐. 2010. 汶川地震诱发大型滑坡分布规律研究. 工程地质学报, 18(6): 818-826. 许强. 2010. 四川省8·13特大泥石流灾害特点、成因与启示. 工程地质学报, 18(5): 596-608. 徐锡伟, 闻学泽, 叶建青等. 2008. 汶川MS8.0地震地表破裂带及其发震构造. 地震地质, 30(3): 597-629. 中国地震局. 2009. 汶川8.0级地震的震源深度. http://www.cea.gov.cn/manage/html/8a8587881632fa5c0116674a018300cf/_content/09_05/08/1241779378191.html. 周荣军, 赖敏, 余桦等. 2010. 汶川MS8.0地震四川及邻区数字强震台网记录. 岩石力学与工程学报, 29(9): 1850-1858.