| 东海大陆边缘基底性质与沉积盆地 |
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| 引用本文： | 杨香华,李安春. 东海大陆边缘基底性质与沉积盆地[J]. 中国海上油气, 2003, 0(1) |
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| 作者姓名： | 杨香华 李安春 |
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| 作者单位： | 中国科学院海洋研究所，中国科学院海洋研究所 山东青岛266071，中国地质大学，武汉430074，山东青岛266071 |
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| 基金项目： | “973”项目“中国海沟 弧 盆体系形成演化”课题 (编号 :G2 0 0 0 0 4670 3)研究成果 |
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| 摘 要： | 根据基底性质分析 ,探讨了东海大陆边缘新生代沉积盆地的形成演化与成因机制。重磁异常、岩浆活动、重矿物组合等研究结果表明 ,东海陆架第三纪盆地的基底性质与大陆裂谷盆地的基底性质类似。东海陆架沉积盆地具有断陷盆地的结构特征 ,具多物源供给条件 ,断裂活动控制了盆地的发展演化 ,并且与中国东部地区断陷盆地一样 ,也经历了断陷—断拗—拗陷的演化进程
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| 关 键 词： | 东海 大陆边缘 基底性质 断裂构造 沉积盆地 |
BASEMENT NATURE AND SEDIMENTARY BASINS ALONG THE CONTINENTAL MARGIN IN EAST CHINA SEA |
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| Yang Xianghua , Li Anchun. BASEMENT NATURE AND SEDIMENTARY BASINS ALONG THE CONTINENTAL MARGIN IN EAST CHINA SEA[J]. China Offshore Oil and Gas, 2003, 0(1) |
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| Authors: | Yang Xianghua Li Anchun |
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| Affiliation: | Yang Xianghua 1,2 Li Anchun 1 |
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| Abstract: | Along the continental margin in East China Sea, the origin and evolution of Tertiary sedimentary basins are discussed, based on analyses of basement nature. The studies on gravity and magnetic anomalies, magmatism and heavy mineral assemblages have indicated that the Tertiary basins in East China Sea are similar in basement nature with the continental rift basins. These Tertiary shelf basins are characterized by a rifted_basin framework, multiple provenances and a fault_controlled evolution history, and have experienced an evolution of rifting_fault sagging_sagging, as the eastern China rifted basins have. |
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| Keywords: | East China Sea continental margin basement nature fault structure sedimentary basin |
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