| 东营凹陷盐-泥构造的样式和成因机制分析 |
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| 引用本文： | 刘晓峰,解习农,张成,姜涛.东营凹陷盐-泥构造的样式和成因机制分析[J].地学前缘,2005,12(4):403-409. |
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| 作者姓名： | 刘晓峰 解习农 张成 姜涛 |
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| 作者单位： | 中国地质大学（武汉）资源学院,湖北武汉430074 |
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| 基金项目： | 国家自然科学基金;中国地质大学(武汉)校科研和教改项目 |
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| 摘 要： | 以地震剖面的精细解释为基础,借鉴典型盐或泥构造的研究成果,文中确立了东营凹陷盐-泥构造样式:盐-泥枕构造、盐-泥滚—滑脱断层簇—滚动背斜构造、盐-泥核背斜—拱顶断层簇构造。区域伸展作用下的重力滑动作用是东营凹陷盐-泥构造的主导成因机制。重力滑动作用表现为触发盐-泥层的聚集—隆升和引起薄皮滑脱作用。由此文中将盐-泥构造演化历程划分为盐-泥枕发育期和滑脱断层—盐-泥滚—盐-泥核背斜发育期。最终建立了东营凹陷盐-泥构造的成因-演化模式。
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| 关 键 词： | 盐-泥构造 构造样式 成因机制 东营凹陷 |
| 文章编号： | 1005-2321（2005）04-0403-07 |
| 收稿时间： | 2005-03-05 |
| 修稿时间： | 2005-07-07 |
Study on structural styles and genetic mechanism of salt-mud tectonics in Dongying Depression |
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| LIU Xiao-feng, XIE Xi-nong, ZHANG Cheng, JIANG Tao.Study on structural styles and genetic mechanism of salt-mud tectonics in Dongying Depression[J].Earth Science Frontiers,2005,12(4):403-409. |
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| Authors: | LIU Xiao-feng XIE Xi-nong ZHANG Cheng JIANG Tao |
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| Institution: | Faculty of Earth Resources. China University of Geosciences, Wuhan 430074,China |
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| Abstract: | Salt-mud tectonics is a kind of tectonics resulted from the distortion of salt-mud bed flow,which is significantly different from pure salt or mud tectonics. Based on the detailed interpretation of seismic profiles with a seismic net spacing of almost 2 km, we have distinguished and defined the following salt-mud tectonic styles in the Dongying Depression: salt-mud pillow, salt-mud roller-detachment fault-rollover anticline and salt-mud core anticline-keystone fault family. The triggering mechanism for the salt-mud tectonics was gravitational gliding accompanying regional extension. Salt-mud bed accumulation and upwelling and thin-skinned detachment led to gravitational gliding. Consequently, the evolution of salt-mud tectonics may be divided into two stages: (1) a salt-mud pillow developing stage (before SB6'); (2) a detachment fault, salt-mud roller and salt-mud-core anticline developing stage (after SB6'). |
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| Keywords: | salt-mud tectonics structural styles genetic mechanism Dongying Depression |
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