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裂陷盆地构造演化及盆地伸展模式--以东濮凹陷为例
苏惠 曲丽萍 张金川 王萍霞 何锋 王敏 王琦 胡玉杰
摘 要:东濮凹陷是我国东部典型的裂陷盆地.盆地的构造演化经历了早古生代至三叠纪的克拉通盆地旋回和新生代的裂陷盆地旋回.新生代裂陷盆地旋回又划分为早期裂陷、强烈裂陷、晚期裂陷和晚第三纪整体坳陷4个阶段.东濮凹陷基底伸展量的变化总趋势是由北向南加大,地壳上部的伸展构造变形为简单剪切伸展模式,而地壳下部具有纯剪切机制.滑脱面变异带可能是造成东濮凹陷内桑村集-桥口-白庙横向构造变换带、南北构造活动差异性以及油气富集程度差异性的重要原因.
关键词:伸展量;伸展模式;构造演化;裂陷盆地;东濮凹陷
分类号:TE111.1 文献标识码:A
文章编号:0253-9985(2006)01-0070-08
Tectonic evolution and extensional pattern of rifted basin: a case study of Dongpu depression
Su Hui Qu Liping Zhang Jinchuan Wang Pingxia He Feng Wang Min Wang Qi Hu Yujie
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基金项目:国家自然科学基金项目(40472073)
作者简介:苏惠(1965-),男,高级工程师、博士生,油气勘探开发
作者单位:苏惠(中国地质大学,北京,100083;中国石化,中原油田,勘探开发科学研究院,河南,濮阳,457001)
曲丽萍(中国石化,中原油田,勘探开发科学研究院,河南,濮阳,457001)
张金川(中国石化,石油勘探开发研究院,北京,100083)
王萍霞(中国石化,中原油田,勘探开发科学研究院,河南,濮阳,457001)
何锋(中国石化,中原油田,勘探开发科学研究院,河南,濮阳,457001)
王敏(中国石化,中原油田,勘探开发科学研究院,河南,濮阳,457001)
王琦(中国石化,中原油田,勘察设计研究院,河南,濮阳,457001)
胡玉杰(中国石化,中原油田,勘探开发科学研究院,河南,濮阳,457001)
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