中国边缘海域及其邻区的岩石层结构与构造分析
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
利用中国边缘海域近年的地震层析成像结果,根据速度异常和各向异性分析东海、黄海和南海北部的岩石层结构和构造,讨论中朝块体和扬子块体在黄海内部的拼合边界(黄海东部断裂带)、东海陆架盆地上地幔异常与岩石层形成演化、南海北部地壳底部高速层的成因及地幔活动等问题。分析表明,黄海东部与朝鲜半岛之间存在一个深部构造界限(大致对应于黄海东部断裂带),分界两侧Pn波速度各向异性存在明显差异,反映不同构造应力和断裂剪切运动作用下的岩石层地幔变形特征。东海陆架下方的低速异常揭示了张裂盆地形成时期的地幔活动痕迹,表明中、新生代期间发生过地幔上涌并造成岩石层减薄,菲律宾海板块向西俯冲引发的地幔活动对东海陆架岩石层的形成、演化产生明显的影响。南海北部岩石层厚度较大并且温度相对偏低,地幔异常仅限于局部地区,估计南海北部大陆边缘的地壳底部高速层形成于张裂发生之前,或者是地壳形成时期壳幔分异时的产物。南海中央海盆的扩张不仅导致地壳拉张,软流层物质上涌,而且也造成岩石层地幔减薄甚至缺失。
Lithospheric structure and tectonics of the East China Sea, Yellow Sea and northern South China Sea are analyzed, based on the velocity anomaly and anisotropy from the results of seismic tomography in Chinese marginal seas.Our discussion is focused on the location of the collision boundary between the Sino-Korea and Yangtze blocks in the Yellow Sea, the unusual upper mantle beneath the East China Sea continental shelf and its lithospheric formation and evolution, the cause of the high-velocity layer in the lowermost crust and the mantle activity beneath the northern South China Sea.Analysis indicates that there is a deep tectonic boundary between the eastern Yellow Sea and the Korean Peninsula, which is roughly corresponding to the eastern Yellow Sea fault zone.The difference of the Pn anisotropy between the east side and the west side of the boundary also reflects the deformation characteristics of the lithospheric mantle under different tectonic stress and fault shearing.Beneath the East China Sea continental shelf, the low velocities reveal the evidence of the mantle activity during the formation of the pull-apart basin, which implies that a mantle upward probably occurred during the Mesozoic and the Cenozoic, and resulted in the lithospheric thinning.Obviously, the mantle activity caused by the westward subduction of the Philippine Sea plate has a significant influence on the formation and evolution of the lithosphere of the East China Sea continental shelf.In the northern South China Sea, fast Pn velocity indicate a thick lithosphere with lower temperatures.It is therefore estimated that the high-velocity layers in the lower crust of the northern continental margin may be formed prior to the rifting of the South Chine Sea and that probably they represent the materials produced during the formation of original crust and mantle.However, the rifting of the central South China Sea basin has resulted not only in the crustal extension and the mantle upwelling but also in the thinning or removal of lithospheric mantle.
引文
[1]Liu G D.Geophysical series maps in China Sea and adjacent regions[M].Beijing:Science Press,1992(in Chinese).
    [2]Liu G D.The characteristics of geophysical fields on the Chi-na seas[J].Progress in Geophysics,2002,17(1):1-12(in Chinese).
    [3]Li T D,Mo J.Tectonic framework of the west circum-Pacific tectonic tract and the geological evolution of the East China Sea[J].Marine Geology&Quaternary Geology,2002,22(4):1-6(in Chinese).
    [4]Liu J H,Wu H,Liu F T.Features of3-D velocity distribu-tion and lithosphere structure in South China andits contigu-ous sea area[J].Chinese J Geophys,1996,39(4):483-492(in Chinese).
    [5]Cao X L,Zhu J S,Zhao L F,et al.Three di mensional shear wave velocity structure of crust and upper mantle in South China Sea andinits adjacent regions by surface waveformin-version[J].Acta Seismologica Sinica,2002,23(2):113-124(in Chinese).
    [6]Zheng YJ,Huang Z X,Liu F T,et al.Rayleigh wave veloc-ity and structure of the crust and upper mantle beneath the seas in eastern China[J].Chinese J Geophys,2000,43(4):480-487(in Chinese).
    [7]Hao T Y,Liu J H,Huang Z X,et al.Research onthelitho-sphere structure of Chinese marginal seas[J].Progressin Ge-ophysics,2004,19(3):583-589(in Chinese).
    [8]Xu Y,Liu J H,Hao T Y,et al.P wave velocity structure and tectonics analysis of lithospheric mantle in eastern China seas and adjacent regions[J].Chinese J Geophys,2006,49(4):1053-1061(in Chinese).
    [9]Cai Q Z.Corresponding division of geotectonic units of east-ern China and Korea[J].Marine Geology&Quaternary Ge-ology,1995,15(1):583-589(in Chinese).
    [10]Guo Y G,Wang H X.Essay on the tectonics attribute ofQinling-Dabie mountain—Jiaonan uplift—Ri mjingang fold belt and adjacent regions[J].Marine Geology&Quaternary Geology,1995,15(2):49-59(in Chinese).
    [11]Hao T Y,Liu J H,Suh M,et al.Deep structure characteris-tics and geological evolutionin YellowSea and adjacent region[J].Chinese J Geophys,2003,46(6):77-87(in Chinese).
    [12]Zhao X X,Coe R S,Chang K H,et al.Clockwise rotations recordedin Early Cretaceous rocks of south Korea:i mplica-tions for tectonic affinity between the Korean Peninsula and north China[J].Geophys J Int,1999,139,447-463.
    [13]Ishi watari A,Tsuji mori T.Paleozoic ophiolites and blueschi-sts in Japan and Russian Pri morye in the tectonic framework of east Asia:a synthesis[J].The Island Arc,2003,190-206.
    [14]Hao T Y,Suh M,Liu J H,et al.Deep structure and bound-ary belt position between Sino-Korean and Yangtze blocks in Yellow Sea[J].Earth Science Frontiers,2004,11(3):51-61(in Chinese).
    [15]Wan T F.Compendium of Chinese tectonics[M].Beijing:Geological Publishing House,2003(in Chinese).
    [16]Gong J M,Zhang W W,Guo X,et al.Preli minary study of the Sino-Koran collision belt between Jiaodong-Korea Penin-sula[J].Marine Geology Letters,2004,20(2):11-13(in Chinese).
    [17]Jin X L,Yu P Z,Lin M H,et al.Preli minary study on the characteristics of crustal structurein the Okinawa trough[J].Oceanologia et Li mnologia Sinica,1983,14(2):105-116(in Chinese).
    [18]Hao T Y,Liu J H,Guo F,et al.Research on crustal struc-ture and lithosphere property in the Okinawa area[J].Chi-nese J Geophys,2004,47(3):462-468(in Chinese).
    [19]Qin Y S,Zhao Y Y,Chen L R,et al.Geology of East China Sea[M].Beijing:Science Press,1987(in Chinese).
    [20]Gao D Z,Zhao J H,Bo Y L,et al.Aprofile study of gravi-tative-magnetic and seismic comprehensive survey in the East China Sea[J].Chinese J Geophys,2004,47(5):853-861(in Chinese).
    [21]Nissen S S,Hayes D E,Buhl P,et al.Deep penetration seis-mic soundings across the northern margin of the South China Sea[J].J Geophys Res,1995,100(B11):22407-22433.
    [22]Nissen S S,Hayes D E,Yao B C,et al.Gravity,heat flow and seismic constraints on the process of crustal extension:north margin of the South China Sea[J].J Geophys Res,1995,100(B11):22447-22483.
    [23]Yao B C.Crust structure of the northern margin of the South China Sea andits tectonic significance[J].Marine Geology&Quaternary Geology,1998,18(2):1-16(in Chinese).
    [24]Qiu X L,Ye S Y,Wu S M,et al.Crustal structure across the Xisha trough,northwestern South China Sea[J].Tec-tonophysics,2001,341:179-193.
    [25]Yan P,Zhou D,Liu Z S.Acrustal structure profile acrossthe northern continental margin of the South China Sea[J].Tectonophysics,2001,338:1-21.
    [26]Wang T K,Chen M K,Lee C S,et al.Seismic i maging of the transitional crust across the northeastern margin of the South China Sea[J].Tectonophysics,2006,412:237-254
    [27]Ernst WG,Liou J G.Contrasting plate tectonic styles of the Qinling-Dabie-Sulu and Franciscan metamorphic belts[J].Geology,1995,23:353-359.
    [28]Ree J H,Cho M,Kwon S T,et al.Possible eastward exten-sion of Chinese collision belt in South Korea:the I mjingang belt[J].Geology,1996,24:1071-1075.
    [29]Zhang W Y.Marine and continental tectonics in China seas and adjacent regions[M].Beijing:Science Press,1986(in Chinese).
    [30]Teraoka Y,Suzuki M,Kawakami.Provenance of Cretaceous and Paleogene sedi ments in the median zone of southwest Ja-pan[J].Bulletin of the Geological Survey of Japan,1998,49,395-411(in Japanese with English abstract).
    [31]Lee K S,Chang H W,Park K H.Neoproterozoic bi modal volcanismin the central Ogcheon belt,Korea:age and tec-tonic i mplication[J].Precambrian Research,1998,89:47-57.
    [32]Lee S L,Cho M,Yi K,et al.Early Proterozoic granulitesin central Korea:tectonic correlation with Chinese cratons[J].Journal of Geology,2000,108:38-729.
    [33]Luan X W,Zhang X H.Heat flow measurement and distri-bution of East China Sea and Ryukyu Trench Arc Back-Arc system[J].Progress in Geophysics,2003,18(4):670-678(in Chinese).
    [34]Yang S C,Hua S B,Cai D S,et al.Present-day heat flow,thermal history and tectonic subsidence of the East China Sea basin[J].Marine and Petroleum Geology,2004,21:1095-1105.
    [35]Lallemand S,Font Y,Bij waard H,et al.Newinsights on3-D plates interaction near Tai wan fromtomography and tec-tonic i mplication[J].Tectonophysics,2001,335:229-253.
    [36]Nakamura M,Yoshuda Y,Zhao D,et al.Three di mensional P-and S-wave velocity structure beneath the Ryukyu arc[J].Tectonophysics,2003,369:121-143.
    [37]Huang Z X,Su W,Peng Y J,et al.Rayleigh wave tomo-graphy of China and adjacent regions[J].J Geophys Res,2003,108(B2),2073,doi:10.1029/2001JB001696.
    [38]Huang J L,Zhao D P.High-resolution mantle tomography of China and surrounding regions[J].J Geophys Res,2006,111,B09305,doi:10.1029/2005JB004066.
    [39]He LJ,Wang K L,Xiong L P,et al.Heat flowandthermal history of the South China Sea[J].Physics of the Earth and Planetary Interiors,2001,126:211-220.
    [40]Hu S,He L,Wang J.Heat flowin the continental area of China:a newdata set[J].Earth Planet Sci Lett,2000,179:407-419.
    [41]Griffin WL,Zhang A,Oreilly S Y,et al.Phanerozoic evolu-tion of the lithosphere beneath the Sino-Korean craton[M]∥Flower,MF J,Chun S L,Lo C H,et al.Mantle dynamics and plate interactions in east Asia.Geodynamics,AGU,1998,27:107-126.
    [42]Ren J Y,Tamaki K,Li S,et al.Late Mesozoic and Cenozoic rifting and its dynamic setting in eastern China and adjacent areas[J].Tectonophysics,2002,344:175-205.
    [43]Xu Y,Li Z W,Hao T Y,et al.Pn wave velocity and anisot-ropyinthe northeastern South China Sea and adjacent regions[J].Chinese J Geophys,2007,50(5):1473-1479(in Chi-nese).
    [44]Taylor B,Hayes D E.The tectonic evolution of South China basin[M]∥Hayes D E.The tectonic and geologic evolution of southeast Asian seas and islands.Geophys Monogr Ser,Washington D C:AGU,1980,23:89-104.
    [45]Taylor B,Hayes D E.Origin and history of the South China Sea basin[M]∥Hayes D E.The tectonic and geologic evolu-tion of southeast Asian seas and islands.Geophys Monogr Ser,Washington D C:AGU,1983,27:23-56.
    [46]Bautista B C,Bautista ML P,Oike K,et al.Anewinsight on the geometry of subducting slabs in northern Luzon,Phil-ippines[J].Tectonophysics,2001,339:279-310.
    [47]Zou H P.The Meso-Cenozoic crust-mantle interactions and the tectonic evolution in the north part of South China Sea andits coastal areas—to the memory of professor Chen Guo-da,the advocate of the concept of continental marginal exten-sional belt[J].Geotectonica et Metallogenia,2005,29(1):78-86(in Chinese).
    [1]刘光鼎.中国海区及邻域地质地球物理场系列图[M].北京:科学出版社,1992.
    [2]刘光鼎.中国海地球物理场特征[J].地球物理学进展,2002,17(1):1-12.
    [3]李廷栋,莫杰.中国滨太平洋构造域构造格架和东海地质演化[J].海洋地质与第四纪地质,2002,22(4):1-6.
    [4]刘建华,吴华,刘福田.华南及其海域三维速度分布特征与岩石层结构[J].地球物理学报,1996,39(4):483-492.
    [5]曹小林,朱介寿,赵连锋,等.南海及邻区地壳上地幔三维S波速度结构的面波波形反演[J].地震学报,2001,23(2):113-124.
    [6]郑月军,黄忠贤,刘福田,等.中国东部海域地壳上地幔瑞利波速度结构研究[J].地球物理学报,2000,43(4):480-487.
    [7]郝天珧,刘建华,黄忠贤,等.中国边缘海岩石层结构研究[J].地球物理学进展,2004,19(3):583-589.
    [8]胥颐,刘建华,郝天珧,等.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[J].地球物理学报,2006,49(4):1053-1061.
    [9]蔡乾忠.中国东部与朝鲜大地构造单元对应划分[J].海洋地质与第四纪地质,1995,15(1):7-24.
    [10]郭玉贵,王红霞.试论秦岭—大别山—胶南隆起—临津江褶皱带及其周缘地区的大地构造属性[J].海洋地质与第四纪地质,1995,15(2):49-59.
    [11]郝天珧,刘建华,Suh M,等.黄海及邻区深部结构特点与地质演化[J].地球物理学报,2003,46(6):77-87.
    [14]郝天珧,Suh M,刘建华,等.黄海深部结构与中朝-扬子块体结合带在海区位置的地球物理研究[J].地学前缘,2004,11(3):51-61.
    [15]万天丰.中国大地构造学纲要[M].北京:地质出版社,2003.
    [16]龚建明,张巍巍,郭新,等.胶东-朝鲜半岛中朝扬子碰撞带初析[J].海洋地质动态,2004,20(2):11-13.
    [17]金翔龙,喻普之,林美华,等.冲绳海槽地壳结构性质的初步探讨[J].海洋与湖沼,1983,14(2):105-116.
    [18]郝天珧,刘建华,郭锋,等.冲绳海槽地区地壳结构与岩石层性质研究[J].地球物理学报,2004,47(3):462-468.
    [19]秦蕴珊,赵一阳,陈丽蓉,等.东海地质[M].北京:科学出版社,1987.
    [20]高德章,赵金海,薄玉玲,等.东海重磁地震综合探测剖面研究[J].地球物理学报,2004,47(5):853-861.
    [23]姚伯初.南海北部陆缘的地壳结构及构造意义[J].海洋地质与第四纪地质,1998,18(2):1-16.
    [29]张文佑.中国海区及邻域海陆大地构造[M].北京:科学出版社,1986.
    [33]栾锡武,张训华.东海及琉球沟弧盆系的海底热流测量与热流分布[J].地球物理学进展,2003,18(4):670-678.
    [43]胥颐,李志伟,郝天珧,等.南海东北部及其邻近地区的Pn波速度结构与各向异性[J].地球物理学报,2007,50(5):1473-1479.
    [47]邹和平.南海北部及其沿岸中、新生代壳幔相互作用与构造演化——纪念“陆缘扩张带”概念的倡导者陈国达教授[J].大地构造与成矿学,2005,29(1):78-86.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心