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东海盆地中、新生代盆架结构与构造演化
投稿时间:2019-08-01  修订日期:2019-12-09  点此下载全文
引用本文:
DOI:10.19762/j.cnki.dizhixuebao.2020115
摘要点击次数: 36
全文下载次数: 57
作者单位E-mail
刘金水 中海石油(中国)有限公司上海分公司  
许怀智 南京大学地球科学与工程学院 xuhzh@cnooc.com.cn 
蒋一鸣 中海石油中国有限公司上海分公司  
王军 中海石油中国有限公司上海分公司  
何新建 中海石油(中国)有限公司上海分公司  
基金项目:国家科技重大专项“东海盆地天然气资源潜力评价”(编号 2016ZX05027-001)
中文摘要:基于地貌、钻井、岩石测年和地震等资料,分析盆地地层分布、盆架结构、构造单元划分和裂陷迁移规律,结果表明东海盆地由台北坳陷、舟山隆起、浙东坳陷、钓鱼岛隆褶带和冲绳坳陷构成,是以新生界沉积为主、中生界沉积为辅的大型中、新生代叠合含油气盆地;古元古代变质岩系构成了盆地的基底。该盆地不仅是印度-太平洋前后相继的动力体系作用下形成的西太平洋沟-弧-盆构造体系域一部分,而且也是古亚洲洋动力体系作用下形成的古亚洲洋构造域和特提斯洋动力体系作用下形成的特提斯洋构造域一部分,晚侏罗世至早白垩世经历了构造体制转换,盆地格局发生重大变革,早白垩世以前主要受古亚洲-特提斯洋构造体制影响的强烈挤压造山和地壳增厚作用演变为早白垩世以来主要受太平洋构造体制控制的陆缘伸展裂陷和岩石圈减薄作用,经历侏罗纪古亚洲-特提斯构造体制大陆边缘拗陷和白垩纪以来太平洋构造体制弧后裂陷两大演化阶段。白垩纪以来太平洋构造体制的弧后裂陷演化阶段可细分为早白垩世至始新世裂陷期、渐新世至晚中新世拗陷期和中新世末至全新世裂陷期。
中文关键词:盆架结构  构造体制转换  裂陷迁移  构造演化  东海盆地
 
Mesozoic and Cenozoic basin structure and tectonic evolution in the East China Sea basin
Author NameAffiliationE-mail
Liu jinshui CNOOC China Limited,Shanghai Branch  
XU Huaizhi School of Earth Sciences and Engineering,Nanjing University,Nanjing xuhzh@cnooc.com.cn 
JIANH Yiming CNOOC China Limited,Shanghai Branch  
Wang Jun CNOOC China Limited,Shanghai Branch  
hexinjian CNOOC China Limited,Shanghai Branch  
Abstract:Based on the data of geomorphology, drilling, rock dating and earthquake, the stratigraphic distribution, basin framework structure, structural unit division and rift migration law of the basin are analyzed. The results show that the East China Sea Basin is composed of Taipei Depression, Zhoushan Uplift, East Zhejiang Depression, Diaoyu Island Uplift Fold Belt and Okinawa Depression. It is Large Mesozoic-Cenozoic superimposed petroleum basins with Cenozoic sediments as the main and Mesozoic sediments as the supplement. Paleoproterozoic metamorphic rocks constitute the basement of the basin. The basin is not only a part of the Western Pacific trench-arc-basin tectonic system tract formed by successive dynamic systems of the Indian-Pacific, but also a part of the Tethys and Paleo-Asian ocean tectonic domain formed by the Tethys Oceanic and the Paleo-Asian oceanic dynamic system. From the Late Jurassic to Early Cretaceous, it experienced tectonic regime transformation and changed significantly in basin pattern. Before the Early Cretaceous, the strongly extruded orogenic and crustal thickening effects mainly affected by the Paleo-Asian Tethys tectonic system evolved into the continental marginal rifting and lithospheric thinning mainly controlled by the Pacific tectonic regime since the Early Cretaceous. It has experienced two major evolutionary stages: the continental marginal depression of the Jurassic Paleo Asia-Tethys oceanic tectonic regime and the post-arc rifting of the Pacific tectonic regime since the Cretaceous. The post-arc rifting evolution stage of the Pacific tectonic regime since the Cretaceous can be subdivided into the Early Cretaceous to Eocene rifting, the Oligocene to Late Miocene depression and the Late Miocene to Holocene rifting.
keywords:basin structure  structural system transformation  rift migration  tectonic evolution  East China Sea Basin
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