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| 鄂尔多斯盆地东南部延长组古地震效应及其地质启迪 | |
| 引用本文： | 李洁,陈洪德,林良彪,赵俊兴,陈安清,朱志军,彭传利,张成弓,陈彦庆.鄂尔多斯盆地东南部延长组古地震效应及其地质启迪[J].地质论评,2010,56(4):480-489. |
| 作者姓名： | 李洁 陈洪德 林良彪 赵俊兴 陈安清 朱志军 彭传利 张成弓 陈彦庆 |
| 作者单位： | 1. 成都理工大学沉积地质研究院,成都,610059 2. 油气藏地质及开发工程国家重点实验室,成都理工大学,成都,610059;成都理工大学沉积地质研究院,成都,610059 3. 中国石油华北油田公司勘探开发研究院,河北任丘,062552 |
| 基金项目： | 国家自然科学基金重点项目，国家重大科技专项(编号 2008ZX5002-001)的成果 |
| 摘 要： | 印支期秦岭造山活动控制和影响着鄂尔多斯盆地南缘边界性质和盆内延长组的沉积作用。通过岩芯分析,在盆地东南部延长组地层中识别出震裂缝、层内阶梯状微断层、微褶皱、液化砂岩脉、液化卷曲变形、球-枕构造、环状层理、丘-槽构造、震积角砾岩等典型的软沉积物变形构造,反映该时期研究区有受频繁且强烈地震作用事件影响的痕迹。在此基础上,对晚三叠世鄂尔多斯盆地盆山耦合作用过程及其响应的动力学机制进行了深入分析;进一步详细研究了震浊积岩这一特殊事件沉积体的形成机制与时空分布规律,并建立其沉积模式;最终讨论了该时期地震作用事件的属性特征及周期活跃性。 |
| 关 键 词： | 古地震 震积岩 延长组 鄂尔多斯盆地 |
Effect of Ancient Earthquake and Its Geological Significance of Upper Triassic Yanchang Formation in Southeast Ordos Basin |
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| LI Jie,CHEN Hongde,LIN Liangbiao,ZHAO Junxing,CHEN Anqing,ZHU Zhijun,PENG Chuanli,ZHANG Chenggong,CHEN Yanqing.Effect of Ancient Earthquake and Its Geological Significance of Upper Triassic Yanchang Formation in Southeast Ordos Basin[J].Geological Review,2010,56(4):480-489. | |
| Authors: | LI Jie CHEN Hongde LIN Liangbiao ZHAO Junxing CHEN Anqing ZHU Zhijun PENG Chuanli ZHANG Chenggong CHEN Yanqing |
| Institution: | LI Jie2),CHEN Hongde1,2),LIN Liangbiao2),ZHAO Junxing2),CHEN Anqing2),ZHU Zhijun2),PENG Chuanli3),ZHANG Chenggong2),CHEN Yanqing2)1) State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation(Chengdu University of Technology),Chengdu,610059,2) Institute of Sedimentary Geology,Chengdu University of Technology,3) Exploration & Development Research Institute,Petrochina Huabei Oilfield Company,Renqiu,062552 |
| Abstract: | Qinling orogenic movements in Indo-sinian epoch control and impact the southern boundary nature and the sediment of the Upper Triassic Yanchang Formation in Ordos Basin.Through analysis of cores,such typical soft sedimentary deformation structures were identified from the Yanchang Formation in southeastern Ordos Basin as earthquake rimas,ladder-shaped faults,micro folds,liquefied sandstone veins,vibrational liquefaction curled deformation structures,ball-and-pillows,loop beddings,colliculus-groove structure... |
| Keywords: | ancient earthquake seismites Late Triassic Yanchang Formation Ordos basin |
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