BASIN PROTOTYPE OF THE CENOZOIC CHANGJIANG DEPRESSION IN THE EAST CHINA SEA SHELF BASIN
-
摘要: 利用地震剖面对东海陆架盆地长江坳陷新生代构造进行解析,认为长江坳陷新生代经历多次构造运动,尤其古新世末的瓯江运动对该区构造定型尤为突出,其中,该坳陷中的挤压反转、地垒等构造对油气的圈闭、运移和保存具有重要意义。主要利用平衡剖面技术,对东海陆架盆地长江坳陷进行盆地原型的恢复。最后,结合长江坳陷的构造演化的特点,得出长江坳陷古新世原型盆地类型为拉分盆地,原型盆地的长轴方向为EW向,但主要受NE向断裂控制,且盆地基本定型于T12之后。Abstract: The interpretation of seismic profiles for Cenozoic structures of the Changjiang Depression in the East China Sea Shelf Basin was carried out.It suggests that many Cenozoic tectonic movements occur in this depression.The Oujiang movement happened in late Paleocene is especially important to the formation of the present geometry of the depression.Data show that inversed anticlines and horsts are very significant for trapping,migration and preservation of oil and gas in the Changjiang Depression,and T30 is a critical time for the formation of the present geometry.The technique of balanced sections is used for reconstruction of the prototype basin.It is concluded that the Changjiang Depression was a pull-apart basin in Paleocene with the long axis in EW direction.The faults in NE direction played most important role in the formation of the basin after the time of T12.
-
Keywords:
- Changjiang Depression /
- prototype basin /
- tectonic evolution /
- Cenozoic /
- East China Sea Shelf Basin
-
-
[1] 谭明友.渤海湾盆地东营-惠民凹陷孔店期原型盆地分析[J].石油实验地质,2003,25(4):348-352. [TAN Mingyou.Analysis of the early Tertiary prototype basin in the Dongying-Huimin sag of the Bohaiwan basin[J].Petroleum Geology & Experiment,2003,25(4):348-352.]
[2] 王国纯.东海盆地第三纪海陆分布与油气关系探讨[J].东海海洋,1990,8(2):22-28. [WANG Guochun.Relation of the distribution of Sea and continent with oil and gas for the East China Sea basin in Tertiary[J].Donghai Marine Science,1990,8(2):22-28.]
[3] 郑洪波,汪品先,刘志飞,等.东亚东倾地形格局的形成与季风系统演化历史寻踪-综合大洋钻探计划683号航次建议书简介[J].地球科学进展,2008,23(11):1150-1160. [ZHENG Hongbo,WANG Pinxian,LIU Zhifei,et al.Carving the history of East Asia's east tilting topography and East Asian Monsoon-An introduction to IODP Proposal 683.[J].Advance In Earth Science,2008,23(11):1150-1160.]
[4] 赵艳秋.东海陆架盆地长江凹陷生油岩研究[J].海洋石油,2003(增刊):40-44.[ZHAO Yanqiu.The Study on Source Rock of Changjiang Sag of the East China Sea Shelf Basin[J].Offshore Oil,2003 (supplement):40-44.]
[5] 许薇龄,乐俊英.东海的构造运动及演化.海洋地质与第四纪地质[J].1988,8(1):9-21.[XU Weiling,LE Junying.Tectonic movement and evolution of the East China Sea[J].Marine Geology and Quaternary Geology,1988,8(1):9-21.] [6] 肖国林,周才凡.论东海陆架盆地玉泉运动[J].青岛海洋大学学报,1995,25(4):488-494. [XIAO Guolin,ZHOU Caifan.Discussion on the Yuquan movements in the East China Sea shelf basin[J].Journal of Ocean University of Qingdao,1995,24(4):488-494.]
[7] 赵俊青,夏斌,纪友亮,等.临清坳陷西部侏罗纪-晚白垩世原型盆地恢复[J].石油勘探与开发,2005,32(3):15-21. [ZHAO Junqing,XIA Bin,JI Youliang,et al.Restoration of Jurassic-Late Cretaceous basin prototype in West Linqing Depression,Bohai Bay Basin[J].Petroleum Exploration and Development,2005,32(3):15-21.]
[8] 杜旭东,李洪革,陆克政,等.华北地台东部及邻区中生代(J-K)原型盆地分布及成盆模式探讨[J].石油勘探与开发,1999,26(4):5-9. [DU Xudong,LI Hongge,LU Kezheng,et al.The distribution of the Mesozoic (J-K) Prototype basin and the discussion of the formation of the basin in North China Platform and its adjacent areas[J].Petroleum Exploration and Development,1999,26(4):5-9.]
[9] 刘光鼎.中国海区及邻域地质地球物理特征[M].北京:科学出版社,1992.[LIU Guangding.Geologic-Geophysic Features Of China Seas and Adjacent Regions[M].Beijing:Science Press,1992.] [10] 舒良树,周新民.中国东南部晚中生代构造作用[J].地质论评,2002,48(3):249-260. [SHU Liangshu,ZHOU Xinming.Late Mesozoic tectonism of southeastern China[J].Geological Review,2002,48(3):249-260.]
[11] Uyeda S.Comparative subductology[J].Episodes,1983,2:19-34.
[12] 王锋,朱文斌,胡德昭.东海盆地长江坳陷新生代反转构造研究[J].大地构造与成矿学,2005,29(2):176-181. [WANG Feng,ZHU Wenbin,HU Dezhao.Cenozoic inversion tectonics in Changjiang Depression of East China Sea Basin[J].Tectonics and metallogeny,2005,29(2):176-181.]
计量
- 文章访问数: 1784
- HTML全文浏览量: 319
- PDF下载量: 37