| 非洲下刚果盆地多边形断层系统及其对油气的意义 |
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| 引用本文： | 李士涛,王振奇,张笑,李涛.非洲下刚果盆地多边形断层系统及其对油气的意义[J].海相油气地质,2011,16(2):73-80. |
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| 作者姓名： | 李士涛 王振奇 张笑 李涛 |
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| 作者单位： | 1. 长江大学
2. 中国石油东方地球物理公司海上事业部 |
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| 基金项目： | “十一五”国家重大专项(编号:2008ZX05030-03-01)资助 |
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| 摘 要： | 利用高精度的三维地震资料,在非洲下刚果盆地上新统-更新统识别出一种多边形断层系统.它们在地震剖面上为微小断距的张性断层,主要发育在深水、半深水环境中沉积的细粒泥质岩中.利用地震相干技术,显示其平面特征为多边形形状;断层无优势走向,属非构造成因;在一个断层层段内,具有上密下疏的特征.研究区多边形断层的形成模式是:顶部泥岩...
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| 关 键 词： | 多边形断层 断层特征 形成机制 油气成藏 下刚果盆地 |
Polygonal Fault Systems and the Significance to Hydrocarbon Accumulation in the Lower Congo Basin,Africa |
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| Li Shitao,Wang Zhenqi,Zhang Xiao,Li Tao.Polygonal Fault Systems and the Significance to Hydrocarbon Accumulation in the Lower Congo Basin,Africa[J].Marine Origin Petroleum Geology,2011,16(2):73-80. |
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| Authors: | Li Shitao Wang Zhenqi Zhang Xiao Li Tao |
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| Institution: | Li Shitao,Wang Zhenqi,Zhang Xiao,Li Tao Faculty of Geoscience,Yangtze University,Jingzhou,Hubei,434023 China |
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| Abstract: | Based on high-resolution 3D seismic data,a sort of polygonal fault systems has been identified in Pliocene-Pleistocene strata in Lower Congo Basin.Within the seismic sections,the polygonal fault systems are characterized by small extensional faults,which develop in pelagic or hemipelagic sedimentary environment with fine-grained mud-dominated sediments.Within the seismic-time coherent slices,polygonal shapes are identified in map view.The orientations of the polygonal faults are almost isotropic,which indic... |
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| Keywords: | Polygonal fault Fault feature Mechanism of formation Hydrocarbon accumulation Lower Congo Basin |
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