许淑梅, 张海洋, 张威, 吴鹏, 刘智, 李灵波, 李健伟. 渤海湾盆地-东海陆架盆地-菲律宾海盆地古近纪沉降中心迁移及其动力学意义[J]. 海洋地质与第四纪地质, 2014, 34(2): 11-18. DOI: 10.3724/SP.J.1140.2014.02011
引用本文: 许淑梅, 张海洋, 张威, 吴鹏, 刘智, 李灵波, 李健伟. 渤海湾盆地-东海陆架盆地-菲律宾海盆地古近纪沉降中心迁移及其动力学意义[J]. 海洋地质与第四纪地质, 2014, 34(2): 11-18. DOI: 10.3724/SP.J.1140.2014.02011
XU Shumei, ZHANG Haiyang, ZHANG Wei, WU Peng, LIU Zhi, LI Lingbo, LI Jianwei. MIGRATION OF SUBSIDENCE CENTERS IN THE BOHAI BAY BASIN, EAST CHINA SEA SHELF BASIN AND THE PHILIPPINE SEA BASIN IN PALEOGENE AND THEIR GEODYNAMIC IMPLICATIONS[J]. Marine Geology & Quaternary Geology, 2014, 34(2): 11-18. DOI: 10.3724/SP.J.1140.2014.02011
Citation: XU Shumei, ZHANG Haiyang, ZHANG Wei, WU Peng, LIU Zhi, LI Lingbo, LI Jianwei. MIGRATION OF SUBSIDENCE CENTERS IN THE BOHAI BAY BASIN, EAST CHINA SEA SHELF BASIN AND THE PHILIPPINE SEA BASIN IN PALEOGENE AND THEIR GEODYNAMIC IMPLICATIONS[J]. Marine Geology & Quaternary Geology, 2014, 34(2): 11-18. DOI: 10.3724/SP.J.1140.2014.02011

渤海湾盆地-东海陆架盆地-菲律宾海盆地古近纪沉降中心迁移及其动力学意义

MIGRATION OF SUBSIDENCE CENTERS IN THE BOHAI BAY BASIN, EAST CHINA SEA SHELF BASIN AND THE PHILIPPINE SEA BASIN IN PALEOGENE AND THEIR GEODYNAMIC IMPLICATIONS

  • 摘要: 分析了古近纪渤海湾盆地、东海陆架盆地和菲律宾海盆地的总体盆地结构和沉积特征,在此基础上对比分析了三大盆地古近纪沉降中心的迁移规律,提出了印度板块与欧亚板块碰撞的远程效应和太平洋板块后退式俯冲是导致三大盆地演化呈现规律性的原因,且前者是主导因素。印度板块与欧亚板块碰撞引起地幔流自西向东蠕动并上涌,使岩石圈拉伸、减薄、破裂,在中国东部盆地产生NE向断裂的右旋走滑,进一步影响并控制了渤海湾盆地和东海陆架盆地的构造演化。太平洋板块的后退式俯冲为亚洲东部的岩石圈向东伸展、蠕散提供了应变空间,太平洋板块晚始新世俯冲方向的改变对东海陆架盆地和菲律宾海盆地向东的构造跃迁及沉降中心迁移产生了重要影响。

     

    Abstract: The Bohai Bay Basin is a Mesozoic and Cenozoic intracontinental rift basin. As a Mesozoic and Cenozoic superposed basin on a cratonic basement, the East China Sea Shelf Basin has passed three periods of tectonic evolution:rifting, depression and regional subsidence. The paper studied in details the transition of subsidence centers in Paleogene of the East China Sea Shelf Basin, and comparison was made with the migration of deposition or subsidence centers in the Bohai Bay Basin and the Philippine Sea Basin in middle-late Eocence. Our data reveal that the evolution of the three basins was dominated by the collision of India-Eurasia plate together with the retrogressive subduction of the Pacific Plate. The W-E direction creep of mantle flow together with mantle upwelling caused by the India-Eurasia plate collision made lithosphere stretching, thinning and rupturing, led to the development of NE faults of right-lateral strike-slip in the eastern China Basins, and then further controlled the tectonic evolution of the Bohai Bay Basin and the East China Sea Shelf Basin. The retrogressive subduction of the Pacific Plate provided the strain spaces for lithosphere extension to the east and creep in eastern Asia, and the change in subduction direction during late Eocence has important influence on the tectonic evolution of Eastern China Basins.

     

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