| 济阳坳陷早晚第三纪沉积间断地层剥蚀量研究 |
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| 引用本文： | 吴智平,韩文功. 济阳坳陷早晚第三纪沉积间断地层剥蚀量研究[J]. 中国海上油气, 2000, 0(5) |
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| 作者姓名： | 吴智平 韩文功 |
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| 作者单位： | 石油大学!山东东营257062(吴智平)，胜利石油管理局物探研究所!山东东营257062(韩文功) |
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| 基金项目： | 石油天然气总公司中青年创新基金的资助 |
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| 摘 要： | 济阳坳陷上下第三系分界面是一个全盆地发育的沉积间断面 (N /E间断面 ) ,其形成于盆地由裂陷阶段向拗陷阶段转化的过渡时期 ,界面之下的断陷沉积地层在早第三纪末期遭受了强烈剥蚀。通过单井 N/E沉积间断地层剥蚀量的计算和古地形与剥蚀量关系的分析 ,绘制了济阳坳陷 N/E沉积间断地层剥蚀厚度等值线图。结果表明 ,不同构造位置的地层剥蚀量不同 :从凸起—斜坡—凹陷中心 ,地层剥蚀量顺次减小 ;区域上南部凹陷地层剥蚀量大 ,北部凹陷地层剥蚀量小
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| 关 键 词： | 地层剥蚀量 N/E间断面 济阳坳陷 |
EROSIVENESS UNDER THE HIATUS BETWEEN PALEOGENE ANDNEOGENE IN JIYANG DEPRESSION |
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| Wu Zhiping. EROSIVENESS UNDER THE HIATUS BETWEEN PALEOGENE ANDNEOGENE IN JIYANG DEPRESSION[J]. China Offshore Oil and Gas, 2000, 0(5) |
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| Authors: | Wu Zhiping |
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| Abstract: | In Jiyang Depression,the depositional interface between Paleogene and Neogene is a regional hiatus(hiatus N/E) and formed during a transition period from rifting to depressing. The rifting sediments under the hiatus underwent a strong erosion in the latest Paleogene. Based on calculation of erosion thickness under the hiatus in some wells and correlation between erosion thicknesses and palaeotopography,contour diagrams of erosion can be mapped. These contour diagrams show that erosion thicknesses vary with tecto nic positons and decrease from uplift,slope to sag centers. Regionally, erosion thicknesses in the south sags are generally greater than those in the north sags. |
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| Keywords: | erosion thickness hiatus N/E Jiyang Depression |
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