| 浅析断陷盆地多幕拉张与油气的关系--以南堡凹陷的多幕裂陷作用为例 |
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| 引用本文： | 周海民,丛良滋.浅析断陷盆地多幕拉张与油气的关系--以南堡凹陷的多幕裂陷作用为例[J].地球科学,1999,24(6):18. |
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| 作者姓名： | 周海民 丛良滋 |
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| 作者单位： | Zhou Haimin
(Jidong Petroleum Exploration and Development Company, Tangshan 063004)
Cong Liangzi
(Scientific Research Institute of Petroleum Exploration and Development, Beijing 100083) |
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| 摘 要： | 南堡凹陷为渤海湾盆地北侧的一个小型叠合型含油气凹陷 ,中新生代以来 ,该区经历了 4幕裂谷作用演化和 1幕构造再活化作用的改造 .其 4幕裂谷作用包括燕山早期裂谷一幕发育期、燕山晚期裂谷二幕发育期、老第三纪始新世—渐新世中期裂谷三幕发育期及老第三纪渐新世中期—新第三纪中新世早期裂谷四幕发育期 .新第三纪中新世中期以来 ,该区构造性质发生明显转变 ,即由中新世早期的构造衰弱期转化为新的构造活化期 ,主要表现在 :断裂作用加剧、拉张作用增强、沉积速率加快 .上述各幕构造过程对南堡凹陷的油气生成及富集规律具有明显不同的控制作用
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| 关 键 词： | 多幕拉张 构造再活化 裂谷与成油 南堡凹陷 |
浅析断陷盆地多幕拉张与油气的关系--以南堡凹陷的多幕裂陷作用为例 |
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| Zhou Haimin,Cong Liangzi.浅析断陷盆地多幕拉张与油气的关系--以南堡凹陷的多幕裂陷作用为例[J].Earth Science-Journal of China University of Geosciences,1999,24(6):18. |
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| Authors: | Zhou Haimin Cong Liangzi |
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| Abstract: | Located in the north of the Bohai gulf basin, the Nanpu depression is a small_sized superimposed oil and gas depression. Since the Mesozoic, this depression has experienced a four_phase rifting evolution and a one_phase tectonic reactivation reformation. The four phases of the rifting function included the first_phase rifting in the Early Mesozoic, the second_phase in the Late Mesozoic, the third_phase in the Eocene of the Eogene to the Middle Oligocene and the fourth_phase in the Middle Oligocene of the Eogene to the Early Miocene of the Neogene. Since the Middle Oligocene of the Eogene, this depression has experienced a conspicuous transformation from the structural fading period in the Early Miocene to a new structural reactivating period. This transformation was typified by the intensified rifting, enhanced extension and faster sedimentary rate. The different rifting phases mentioned above have exerted conspicuously different impacts on the hydrocarbon generation and accumulation pattern in the Nanpu depression. |
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| Keywords: | polyphase extension tectonic reactivation rift and hydrocarbon accumulation Nanpu depression |
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