LI XueLei,
HAO TianYao,
LI ZhiWei
.2020.P wave velocity structure and tectonic analysis beneath southeastern China Chinese Journal of Geophysics(in Chinese),63(5): 1802-1815,doi: 10.6038/cjg2020N0347
P wave velocity structure and tectonic analysis beneath southeastern China
LI XueLei1,2, HAO TianYao3,4,5, LI ZhiWei1
1. State Key Laboratory of Geodesy and Earth's Dynamics, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China; 2. School of Mathematics and Statistics, Hunan University of Technology and Business, Changsha 410205, China; 3. Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China; 4. Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China; 5. University of Chinese Academy of Sciences, Beijing 100049, China
Abstract：Using waveform data of seismic stations in southeastern China,we employed the teleseismic P wave tomography method to invert the upper mantle P wave velocity structure beneath the Fujian-Taiwan region. Based on these results,we analyzed tectonic properties of the Cathaysia block and discussed deep dynamic mechanism of the upper mantle in southeastern China. The results show that the upper mantle velocity structure in this region is obviously lateral heterogeneity,which is closely related to deep dynamic conditions of its tectonic. Macroscopically seeing,the NE distribution of the low velocity structure is consist with the zonal distribution of Mesozoic-Cenozoic igneous rocks in coastal areas of southeastern China,and we speculate that mantle upwelling may occur beneath this region. The difference of velocity structures between the East and West Cathaysia blocks is observed in this study. Based on the former research,we suggest that the triggering mechanism is different for lithospheric thinning and Mesozoic-Cenozoic magmatic activities between them,the West Cathaysia block corresponding to the dynamic model "slab subduction + magma invasion (lithosphere delamination)" and the East Cathaysia block harmonizing with another dynamic model "migration of basaltic magma +magma invasion".
Ai Y S, Chen Q F, Zeng F, et al. 2007. The crust and upper mantle structure beneath southeastern China. Earth and Planetary Science Letters, 260(3-4):549-563. Chen P F, Huang B S, Liang W T. 2004. Evidence of a slab of subducted lithosphere beneath central Taiwan from seismic waveforms and travel times. Earth and Planetary Science Letters, 229(1-2):61-71. Gilder S A, Gill J, Coe R S, et al. 1996. Isotopic and paleomagnetic constraints on the Mesozoic tectonic evolution of south China. Journal of Geophysical Research: Solid Earth, 101(B7):16137-16154. Guo B, Liu Q Y, Chen J H, et al. 2019. Teleseismic P-wave tomography of the crust and upper mantle in Longmenshan area, west Sichuan. Chinese Journal of Geophysics (in Chinese), 52(2):346-355. Hao T Y, Liu J H, Huang Z X, et al. 2004. Research on the lithosphere structure of Chinese Marginal Seas. Progress in Geophysics (in Chinese), 19(3):583-589. Hao T Y, Hu W J, Xing J, et al. 2014. The Moho depth map (1:5000000) in the land and seas of China and adjacent areas and its geological implications. Chinese Journal of Geophysics (in Chinese), 57(12):3869-3883, doi:10.6038/cjg20141202. Hsu S K. 2001. Lithospheric structure, buoyancy and coupling across the southernmost Ryukyu subduction zone:an example of decreasing plate coupling. Earth and Planetary Science Letters, 186(3-4):471-478. Huang H H, Wu Y M, Song X D, et al. 2014. Joint Vp and Vs tomography of Taiwan:Implications for subduction-collision orogeny. Earth and Planetary Science Letters, 392:177-191. Huang Z C, Wang L S, Zhao D P, et al. 2010. Upper mantle structure and dynamics beneath southeast China. Physics of the Earth and Planetary Interiors, 182(3-4):161-169. Huang Z X, Xu Y. 2011. S-wave velocity structure of South China Sea and surrounding regions from surface wave tomography. Chinese Journal of Geophysics (in Chinese), 54(12):3089-3097, doi:10.3969/j.issn.0001-5733.2011.12.010. Humphreys E D, Clayton R W. 1990. Tomographic image of the southern California mantle. Journal of Geophysics Research: Solid Earth, 951(B12):19725-19746. Hwang R D, Yu G K. 2005. Shear-wave velocity structure of upper mantle under Taiwan from the array analysis of surface waves. Geophysical Research Letters, 32(7):L07310. Jahn B M. 1974. Mesozoic thermal events in southeast China. Nature, 248(5448):480-483. Jahn B M, Zhou X H, Li J L. 1990. Formation and tectonic evolution of southeastern China and Taiwan:isotopic and geochemical constraints. Tectonophysics, 183(1-4):145-160. Jiang G Z, Gao P, Rao S, et al. 2016. Compilation of heat flow data in the continental area of China (4th edition). Chinese Journal of Geophysics (in Chinese), 59(8):2892-2910, doi:10.6038/cjg20160815. Kennett B L N, Engdahl E R. 1991. Traveltimes for global earthquake location and phase identification. Geophysical Journal International, 105(2):429-465. Kim K H, Chiu J M, Kao H, et al. 2004. A preliminary study of crustal structure in Taiwan region using receiver function analysis. Geophysical Journal International, 159(1):146-164. Li Q S, Gao R, Wu F T, et al. 2013. Seismic structure in the southeastern China using teleseismic receiver functions. Tectonophysics, 606:24-35. Li Z W, Xu Y, Hao T Y, et al. 2009. Vp and Vp/Vs structures in the crust and upper mantle of the Taiwan region, China. Science in China Series D Earth Sciences, 52(7):975-983. Li Z W, Roecker S, Kim K, et al. 2014. Moho depth variations in the Taiwan orogen from joint inversion of seismic arrival time and Bouguer gravity data. Tectonophysics, 632:151-159. Li Z X, Li X H. 2007. Formation of the 1300-km-wide intracontinental orogen and postorogenic magmatic province in Mesozoic south China:a flat-slab subduction model. Geology, 35(2):179-182. Lin S F, Xing G F, Davis D W, et al. 2018. Appalachian-style multi-terrane Wilson cycle model for the assembly of South China. Geology, 46(4):319-322. Liu G D. 1992. Geology-Geophysics Mapping Project Series of China Seas and Adjacent Regions (in Chinese). Beijing:Science Press. Liu G X, Han K, Han J T. 2012. Lithosphere electrical structure in southeast coastal region, South China. Journal of Jilin University (Earth Science Edition) (in Chinese), 42(2):536-544. Nie T C, Zhu G L. 2004. On the characteristics and evolution of geological structures in the intermediate section of the Zhenghe-Dapu deep faulted zone. Geology of Fujian (in Chinese), 23(4):186-194. Nie T C. 2010. On confirmation of the Indo-Sinian Uplift and extensional structures in southwestern Fujian and its control of mineralization. Geology of Fujian (in Chinese), 29(4):315-322. Rawlinson N, Kennett B L N. 2004. Rapid estimation of relative and absolute delay times across a network by adaptive stacking. Geophysical Journal International, 157(1):332-340. Rawlinson N, Reading A M, Kennett B L N. 2006. Lithospheric structure of Tasmania from a novel form of teleseismic tomography. Journal of Geophysics Research: Solid Earth, 111(B2):B02301, doi:10.1029/2005JB003803. Rawlinson N, Kennett B L N. 2008. Teleseismic tomography of the upper mantle beneath the southern Lachlan Orogen, Australia. Physics of the Earth and Planetary Interiors, 167(1-2):84-97. Ren J S, Chen T Y, Niu B G, et al. 1990. Tectonic Evolution and Metallogenesis of the Continental Lithosphere in Eastern China and Its Adjacent Areas (in Chinese). Beijing:Science Press. Shu L S, Charvet J. 1996. Kinematics and geochronology of the Proterozoic Dongxiang-Shexian ductile shear zone:with HP metamorphism and ophiolitic melange (Jiangnan Region, South China). Tectonophysics, 267(1-4):291-302. Shu L S. 2012. An analysis of principal features of tectonic evolution in South China Block. Geological Bulletin of China (in Chinese), 31(7):1035-1053. Sibuet J C, Hsu S K. 1997. Geodynamics of the Taiwan arc-arc collision. Tectonophysics, 274(1-3):221-251. Sibuet J C, Hsu S K. 2004. How was Taiwan created?. Tectonophysics, 379(1-4):159-181. VanDecar J C, Crosson R S. 1990. Determination of teleseismic relative phase arrival times using multi-channel cross-correlation and least squares. Bulletin of the Seismological Society of America, 80(1):150-169. Wan K Y, Xia S H, Cao J H, et al. 2017. Deep seismic structure of the northeastern South China Sea:Origin of a high-velocity layer in the lower crust. Journal of Geophysics Research: Solid Earth, 122(4):2831-2858, doi:10.1002/2016JB013481. Wang D Z, Zhou X M. 2002. Origin of Late Mesozoic Granitic Volcanic-Intrusive Complex and Crust Evolution in Southeastern China (in Chinese). Beijing:Science Press. Wang X X, Kaus B J P, Zhao L, et al. 2019. Mountain building in Taiwan:insights from 3-D geodynamic models. Journal of Geophysical Research: Solid Earth, 124(6):5924-5950. Wang Z, Zhao D P, Wang J, et al. 2006. Tomographic evidence for the Eurasian lithosphere subducting beneath south Taiwan. Geophysical Research Letters, 33(18):L18306, doi:10.1029/2006GL027166. Wang Z, Huang R Q, Huang J L, et al. 2008. P-wave velocity and gradient images beneath the Okinawa Trough. Tectonophysics, 455(1-4):1-13. Wang Z, Fukao Y, Zhao D P, et al. 2009. Structural heterogeneities in the crust and upper mantle beneath Taiwan. Tectonophysics, 476(3-4):460-477. Wu F Y, Sun D Y, Zhang G L, et al. 2000. Deep geodynamics of Yanshain movement. Geological Journal of China Universities (in Chinese), 6(3):379-388. Wu Y M, Chang C H, Zhao L, et al. 2007. Seismic tomography of Taiwan:Improved constraints from a dense network of strong motion stations. Journal of Geophysical Research:Solid Earth, 112(B8):B08312, doi:10.1029/2007JB004983. Xu G M, Li G P, Zhou H S, et al. 2000. The 3-D structure of shear waves in the crust and mantle of east continental China inverted by Rayleigh wave data. Chinese Journal of Geophysics (in Chinese), 43(3):366-376. Xu X S, Dong C W, Li W X, et al. 1999. Late Mesozoic intrusive complexes in the coastal area of Fujian, SE China:the significance of the gabbro-diorite-granite association. Lithos, 46(2):299-315. Xu Y, Liu J H, Hao T Y, et al. 2006. P wave velocity structure and tectonics analysis of lithospheric mantle in eastern China seas and adjacent regions. Chinese Journal of Geophysics (in Chinese), 49(4):1053-1061. Zhang F X, Wu Q J, Li Y H, et al. 2013a. Pick up the teleseismic relative traveltime residuals by wave form correlation based on the GUI. Seismological and Geomagnetic Observation and Research (in Chinese), 34(3-4):58-64. Zhang F X, Wu Q J, Li Y H. 2013b. The traveltime tomography study by teleseismic P wave data in the Northeast China area. Chinese Journal of Geophysics (in Chinese), 56(8):2690-2700, doi:10.6038/cjg20130818. Zhang F X, Wu Q J. 2019. The upper mantle velocity variations and its implications for the volcanism nearby the north edge of Songliao Basin. Chinese Journal of Geophysics (in Chinese), 62(8):2918-2929, doi:10.6038/cjg2019M0665. Zhang G W, Guo A L, Wang Y J, et al. 2013. Tectonics of South China continent and its implications. Science China Earth Sciences, 56(11):1804-1828. Zhang Y Y, Chen L, Ai Y S, et al. 2018. Lithospheric structure of the South China Block from S-receiver function. Chinese Journal of Geophysics (in Chinese), 61(1):138-149, doi:10.6038/cjg2018L0226. Zhao D P, Hasegawa A, Kanamori H. 1994. Deep structure of Japan subduction zone as derived from local, regional, and teleseismic events. Journal of Geophysical Research: Solid Earth, 99(B11):22313-22329. Zhao G C, Cawood P A. 2012. Precambrian geology of China. Precambrian Research, 222-223:13-54, doi:10.1016/j.precamres.2012.09.017. Zhao L, Allen R M, Zheng T Y, et al. 2012. High-resolution body wave tomography models of the upper mantle beneath eastern China and the adjacent areas. Geochemistry, Geophysics, Geosystems, 13(6):Q06007, doi:10.1029/2012GC004119. Zheng H W, Gao R, Li T D, et al. 2013. Collisional tectonics between the Eurasian and Philippine Sea plates from tomography evidences in Southeast China. Tectonophysics, 606:14-23. Zhou X M, Li W X. 2000. Origin of Late Mesozoic igneous rocks in Southeastern China:implications for lithosphere subduction and underplating of mafic magmas. Tectonophysics, 326(3-4):269-287. Zietlow D W, Molnar P H, Sheehan A F. 2016. Teleseismic P wave tomography of South Island, New Zealand upper mantle:Evidence of subduction of Pacific lithosphere since 45 Ma. Journal of Geophysics Research: Solid Earth, 121(6):4427-4445. 附中文参考文献 郭飚, 刘启元, 陈九辉等. 2019. 川西龙门山及邻区地壳上地幔远震P波层析成像. 地球物理学报, 52(2):346-355. 郝天珧, 刘建华, 黄忠贤等. 2004. 中国边缘海岩石层结构研究. 地球物理学进展, 19(3):583-589. 郝天珧, 胡卫剑, 邢健等. 2014. 中国海陆1:500万莫霍面深度图及其所反映的地质内涵. 地球物理学报, 57(12):3869-3883, doi:10.6038/cjg20141202. 黄忠贤, 胥颐. 2011. 南海及邻近地区面波层析成像和S波速度结构. 地球物理学报, 54(12):3089-3097, doi:10.3969/j.issn.0001-5733.2011.12.010. 姜光政, 高堋, 饶松等. 2016. 中国大陆地区大地热流数据汇编(第四版). 地球物理学报, 59(8):2892-2910, doi:10.6038/cjg20160815. 李志伟, 胥颐, 郝天珧等. 2009. 台湾地区的壳幔P波速度和Vp/Vs波速比结构研究. 中国科学 D辑:地球科学, 39(9):1191-1199. 刘光鼎. 1992. 中国海区及邻域地质地球物理场系列图. 北京:科学出版社. 刘国兴, 韩凯, 韩江涛. 2012. 华南东南沿海地区岩石圈电性结构. 吉林大学学报(地球科学版), 42(2):536-544. 聂童春, 朱根灵. 2004. 政和-大埔深(大)断裂带中段地质构造特征及其演化探讨. 福建地质, 23(4):186-194. 聂童春. 2010. 闽西南地区印支期隆起-伸展构造的厘定及其控矿作用. 福建地质, 29(4):315-322. 任纪舜, 陈廷愚, 牛宝贵等. 1990. 中国东部及邻区大陆岩石圈的构造演化与成矿. 北京:科学出版社. 舒良树. 2012. 华南构造演化的基本特征. 地质通报, 31(7):1035-1053. 王德滋, 周新民. 2002. 中国东南部晚中生代花岗质火山-侵入杂岩成因与地壳演化. 北京:科学出版社. 吴福元, 孙德有, 张广良等. 2000. 论燕山运动的深部地球动力学本质. 高校地质学报, 6(3):379-388. 徐果明, 李光品, 周虎顺等. 2000. 用瑞利面波资料反演中国大陆东部地壳上地幔横波速度的三维构造. 地球物理学报, 43(3):366-376. 胥颐, 刘建华, 郝天珧等. 2006. 中国东部海域及邻区岩石层地幔的P波速度结构与构造分析. 地球物理学报, 49(4):1053-1061. 张风雪, 吴庆举, 李永华等. 2013a. 基于图形界面的波形相关法拾取远震相对走时残差. 地震地磁观测与研究, 34(3-4):58-64. 张风雪, 吴庆举, 李永华. 2013b. 中国东北地区远震P波走时层析成像研究. 地球物理学报, 56(8):2690-2700, doi:10.6038/cjg20130818. 张风雪, 吴庆举. 2019. 松辽盆地北缘的上地幔速度结构及该区火山成因探讨. 地球物理学报, 62(8):2918-2929, doi:10.6038/cjg2019M0665. 张国伟, 郭安林, 王岳军等. 2013. 中国华南大陆构造与问题. 中国科学:地球科学, 43(10):1553-1582. 张耀阳, 陈凌, 艾印双等. 2018. 利用S波接收函数研究华南块体的岩石圈结构. 地球物理学报, 61(1):138-149, doi:10.6038/cjg2018L0226.
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