Late Mesozoic and Cenozoic rifting and its dynamic setting in Eastern China and adjacent areas

Abstract During the Late Mesozoic and Cenozoic, extension was widespread in Eastern China and adjacent areas. The first rifting stage spanned in the Late Jurassic–Early Cretaceous times and covered an area of more than 2 million km2 of NE Asia from the Lake Baikal to the Sikhot-Alin in EW direction and from the Mongol–Okhotsk fold belt to North China in NS direction. This rifting was characterized by intracontinental rifts, volcanic eruptions and transform extension along large-scale strike–slip faults. Based on the magmatic activity, filling sequence of basins, tectonic framework and subsidence analysis of basins, the evolution of this area can be divided into three main developmental phases. The first phase, calc-alkaline volcanics erupted intensely along NNE-trending faults, forming Daxing'anling volcanic belt, NE China. The second phase, Basin and Range type fault basin system bearing coal and oil developed in NE Asia. During the third phase, which was marked by the change from synrifting to thermal subsidence, very thick postrift deposits developed in the Songliao basin (the largest oil basin in NE China). Following uplift and denudation, caused by compressional tectonism in the near end of Cretaceous, a Paleogene rifting stage produced widespread continental rift systems and continental margin basins in Eastern China. These rifted basins were usually filled with several kilometers of alluvial and lacustrine deposits and contain a large amount of fossil fuel resources. Integrated research in most of these rifting basins has shown that the basins are characterized by rapid subsidence, relative high paleo-geothermal history and thinned crust. It is now accepted that the formation of most of these basins was related to a lithospheric extensional regime or dextral transtensional regime. During Neogene time, early Tertiary basins in Eastern China entered a postrifting phase, forming regional downwarping. Basin fills formed in a thermal subsidence period onlapped the fault basin margins and were deposited in a broad downwarped lacustrine depression. At the same time, within plate rifting of the Lake Baikal and Shanxi graben climaxed and spreading of the Japan Sea and South China Sea occurred. Quaternary rifting was marked by basalt eruption and accelerated subsidence in the area of Tertiary rifting. The Okinawa Trough is an active rift involving back-arc extension. Continental rifting and marginal sea opening were clearly developed in various kind of tectonic settings. Three rifting styles, intracontinental rifting within fold belt, intracontinental rifting within craton and continental marginal rifting and spreading, are distinguished on the basis of nature of the basin basement, tectonic location of rifting and relations to large strike–slip faults. Changes of convergence rates of India–Eurasia and Pacific–Eurasia may have caused NW–SE-trending extensional stress field dominating the rifting. Asthenospheric upwelling may have well assisted the rifting process. In this paper, a combination model of interactions between plates and deep process of lithosphere has been proposed to explain the rifting process in East China and adjacent areas. The research on the Late Mesozoic and Cenozoic extensional tectonics of East China and adjacent areas is important because of its utility as an indicator of the dynamic setting and deformational mechanisms involved in stretching Lithosphere. The research also benefits the exploration and development of mineral and energy resources in this area.

[1]  Xiaozhong Zhou,et al.  The stratigraphy, structure and evolution of Zengmu basin , 1994 .

[2]  Xin-hua Zhou,et al.  Cenozoic Basaltic Rocks in Eastern China , 1988 .

[3]  G. Kimura,et al.  Collision, rotation, and back‐arc spreading in the region of the Okhotsk and Japan Seas , 1986 .

[4]  M. Steckler,et al.  Subsidence of the Atlantic-type continental margin off New York , 1978 .

[5]  P. Castillo.  The Dupal anomaly as a trace of the upwelling lower mantle , 1988, Nature.

[6]  S. Maruyama.  Mesozoic and Cenozoic evolution of Asia , 1989 .

[7]  A. Taira,et al.  Seismic record of tectonic evolution and backarc rifting in the southern Ryukyu island arc system , 1998 .

[8]  M. Kimura.  Back-arc rifting in the Okinawa Trough , 1985 .

[9]  J. Nábělek,et al.  Seismogenic strike‐slip faulting and the development of the North China Basin , 1988 .

[10]  Kehui Xu,et al.  The Mesozoic-Cenozoic East China rift system , 1992 .

[11]  Allan Cox,et al.  Relative Motions Between Oceanic and Continental Plates in the Pacific Basin , 1986 .

[12]  D. L. Anderson,et al.  An alternative mechanism of flood basalt formation , 1995 .

[13]  Changsong Lin,et al.  Episodic rifting of continental marginal basins and tectonic events since 10 Ma in the South China Sea , 1999 .

[14]  P. Davy,et al.  Indentation tectonics in nature and experiment. I: Experiments scaled for gravity , 1988 .

[15]  E. Honza,et al.  Global tectionics and formation of marginal basins: Role of the western Pacific , 1991 .

[16]  E. Honza,et al.  Incipient subduction and deduction along the eastern margin of the Japan Sea , 1985 .

[17]  M. Richards,et al.  Hotspots, mantle plumes, flood basalts, and true polar wander , 1991 .

[18]  Yu Ho-Shing.  The Pearl River Mouth Basin: A rift basin and its geodynamic relationship with the southeastern Eurasian margin , 1990 .

[19]  G. Peltzer,et al.  Formation and evolution of strike‐slip faults, rifts, and basins during the India‐Asia Collision: An experimental approach , 1988 .

[20]  Liu Hefu.  Geodynamic scenario and structural styles of Mesozoic and Cenozoic basins in China , 1986 .

[21]  S. Hsu,et al.  Structural and Kinematic Evolutions of the Okinawa Trough Backarc Basin , 1995 .

[22]  L. Desheng.  Geologic Evolution of Petroliferous Basins on Continental Shelf of China , 1984 .

[23]  Di Zhou,et al.  Kinematics of Cenozoic extension on the South China Sea continental margin and its implications for the tectonic evolution of the region , 1995 .

[24]  G. Packham.  Plate tectonics and the development of sedimentary basins of the dextral regime in western Southeast Asia , 1993 .

[25]  K. Tamaki.  Tectonic synthesis and implications of Japan Sea ODP drilling , 1992 .

[26]  X. Jiawei,et al.  Tectonic Models of the Tan-Lu Fault Zone, Eastern China , 1994 .

[27]  S. Uyeda,et al.  Evolution of the western pacific and its margin , 1977 .

[28]  P. Hooper,et al.  The Cenozoic Basaltic Rocks of Eastern China: Petrology and Chemical Composition , 1991 .

[29]  L. Jolivet,et al.  Japan Sea, opening history and mechanism: A synthesis , 1994 .

[30]  M. Kono,et al.  Mesozoic collision—extrusion tectonics in eastern Asia , 1990 .

[31]  J. Whitford-Stark.  A survey of Cenozoic volcanism on mainland Asia , 1987 .

[32]  G. R. Keller,et al.  Eastern Asia and the Western Pacific timing and spatial distribution of rifting in China , 1991 .

[33]  Paul Tapponnier,et al.  Updated interpretation of magnetic anomalies and seafloor spreading stages in the south China Sea: Implications for the Tertiary tectonics of Southeast Asia , 1993 .

[34]  B. Taylor.  Origin and history of the South China Basin , 1983 .

[35]  B. Natal’in,et al.  The geodynamic evolution of the eastern Eurasian margin in Mesozoic times , 1992 .

[36]  Shigenori Maruyama,et al.  Mechanism of backarc opening in the Japan Sea: role of asthenospheric injection , 1990 .

[37]  S. Reidel.  Continental flood basalts , 1991 .

[38]  Xing‐Da Ma,et al.  Cenozoic extensional tectonics in China , 1987 .

[39]  Z. Lu.  GEOSCIENCE TRANSECT FROM DONG UJIMQINQI, NEI MONGOL, TO DONGGOU, LIAONING, CHINA , 1993 .

[40]  W. R. Buck,et al.  Modes of continental lithospheric extension , 1991 .

[41]  Bo-Chuan Zhang,et al.  The Cenozoic tectonic evolution of the Great North China: two types of rifting and crustal necking in the Great North China and their tectonic implications , 1987 .

[42]  L. Jolivet,et al.  Right‐lateral shear along the Northwest Pacific Margin and the India‐Eurasia Collision , 1990 .

[43]  S. Polachan,et al.  Development of Cenozoic basins in Thailand , 1991 .

[44]  Jing-Ming Wang.  The Fenwei rift and its recent periodic activity , 1987 .

[45]  A. Miyashiro.  Hot regions and the origin of marginal basins in the western Pacific , 1986 .

[46]  J. Pigott,et al.  Basin superposition on the northern margin of the South China Sea , 1994 .

[47]  Brian Taylor,et al.  Backarc basins : tectonics and magmatism , 1995 .

[48]  J. Achache,et al.  India–Eurasia collision chronology has implications for crustal shortening and driving mechanism of plates , 1984, Nature.

[49]  L. Zonenshain,et al.  Geodynamics of the Baikal rift zone and plate tectonics of Asia , 1981 .

[50]  D. Hutchinson,et al.  Depositional and tectonic framework of the rift basins of Lake Baikal from multichannel seismic data , 1992 .

[51]  N. A. Logatchev,et al.  Evidence and causes of the two-stage development of the Baikal rift , 1987 .

[52]  G. Peltzer,et al.  On the mechanics of the collision between India and Asia , 1986, Geological Society, London, Special Publications.

[53]  Masayuki Obayashi,et al.  Subducting slabs stagnant in the mantle transition zone , 1992 .

[54]  T. Lee,et al.  Cenozoic plate reconstruction of Southeast Asia , 1995 .

[55]  John D. Pigott,et al.  Episodic Rifting and Subsidence in the South China Sea , 1986 .

[56]  P. R. Cobbold,et al.  Propagating extrusion tectonics in Asia: New insights from simple experiments with plasticine , 1982 .

[57]  L. Jolivet,et al.  Tectonic setting of Western Pacific marginal basins , 1989 .

[58]  H. Jiafu,et al.  LATE MESOZOIC RIFTING IN NORTHEAST CHINA AND NORTHEAST ASIA FAULT BASIN SYSTEM , 1988 .

[59]  K. Tamaki.  Opening Tectonics of the Japan Sea , 1995 .

[60]  B. Burchfiel,et al.  Motion of the Pacific plate relative to Eurasia and its potential relation to Cenozoic extension along the eastern margin of Eurasia , 1995 .

[61]  Peter Molnar,et al.  Active faulting and cenozoic tectonics of the Tien Shan, Mongolia, and Baykal Regions , 1979 .

[62]  Guodong Liu.  The Cenozoic rift system of the North China Plain and the deep internal process , 1987 .

[63]  Jiawei Xu.  The Tancheng-Lujiang wrench fault system , 1993 .