| 东海陆架盆地中新生代构造演化特征 |
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| 引用本文： | 冯晓杰,蔡东升,王春修,高乐. 东海陆架盆地中新生代构造演化特征[J]. 中国海上油气, 2003, 0(1) |
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| 作者姓名： | 冯晓杰 蔡东升 王春修 高乐 |
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| 作者单位： | 中海石油研究中心勘探研究院 河北高碑店074010(冯晓杰，蔡东升，王春修)，中海石油研究中心勘探研究院 河北高碑店074010(高乐) |
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| 摘 要： | 东海陆架盆地为发育于克拉通基底之上的中、新生代叠合盆地。据区域地质、盆地充填序列和盆地结构研究 ,该盆地经历了晚三叠世 (?)—中侏罗世克拉通边缘坳陷盆地、白垩纪弧前盆地和晚白垩世末—新生代弧后裂陷盆地等 3个构造演化阶段。白垩纪以来 ,东海陆架盆地的演化受控于太平洋板块向欧亚板块的俯冲 ,随着俯冲角度逐渐变陡 ,裂陷期由西向东逐渐变新 ,早白垩世岩浆弧位于浙闽东部 ,陆架盆地为弧前盆地 ,至晚白垩世末—早古新世 ,陆架盆地转变为弧后盆地 ,并先在西部坳陷带发育古新世裂陷 ,后在东部坳陷带发育始新世裂陷
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| 关 键 词： | 东海陆架盆地 中生代 新生代 地层序列 构造属性 演化模式 |
THE MESO-CENOZOIC TECTONIC EVOLUTION IN EAST CHINA SEA SHELF BASIN |
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| Feng Xiaojie Cai Dongsheng Wang Chunxiu Gao Le. THE MESO-CENOZOIC TECTONIC EVOLUTION IN EAST CHINA SEA SHELF BASIN[J]. China Offshore Oil and Gas, 2003, 0(1) |
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| Authors: | Feng Xiaojie Cai Dongsheng Wang Chunxiu Gao Le |
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| Abstract: | East China Sea Shelf Basin (ECSSB) is a superposed basin on a cratonic basement.Based on regional geology and basin filling and framework, it is shown that ECSSB has experienced three evolution stages: Late Triassic(?)?Middle Jurassic cratonic margin depression,Cretaceous forearc basin, and latest Cretaceous?Cenozoic back_arc rift basin. Since Cretaceous, the evolution of ECSSB has been controlled by the subduction of Pacific Plate into Eurasia Plate, with rifting ages becoming gradually younger towards east as the subduction is steeper and steeper. During Early Cretaceous, there was a volcanic arc along the eastern region of Zhejiang and Fujian Provinces, and ECSSB become a forearc basin. During Late Cretaceous or Early Paleocene, ECSSB is transformed into a backarc basin, with Paleocene and Eocene rifting developed respectively in the west and east depression belt. |
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| Keywords: | East China Sea Shelf Basin Mesozoic Cenozoic bed series tectonics evolutionary pattern |
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