江苏镇江东部大路—姚桥断裂新构造运动特征
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摘要
通过地震剖面、可控源异常体解译、野外露头剖面勘察以及施工钻孔和连孔剖面等资料,首次详细证实了大路—姚桥断裂具新构造运动特征,根据邻区测年结果及中晚更新世沉积的下蜀组老黄土,推断出断层的活动时间为第四纪中更新世早期和中更新世以前。新构造运动致使中更新世以来断层两侧沉积了完全不同的岩相特征,形成了2套不同的沉积体系。新构造运动的发现对镇江市的规划和建设以及地质灾害的预防具有重要的指导作用,对苏锡常地裂缝的研究具有一定的指导意义。
This work for the first time confirmed in details the Neotectonic movement features of the Dalu-Yaoqiao Fault in Zhenjiang of Jiangsu Province,with the analysis of seismic profiles,interpretation of controlled-source anomaly bodies,field outcrop profiles,construction drill holes and joint hole profiles. The dating ages in the adjacent areas and the Middle-Late Pleistocene Xiashu Formation old loess suggest that the fault was active in the early stage of the Middle Pleistocene and before the Middle Pleistocene. The Neotectonic movements resulted in completely different lithologies on both sides of the fault,and formed two sets of sedimentary systems. The discovery of the Neotectonic movements has great guiding significance for the planning and construction of Zhenjiang City and the prevention of geological hazards,and is also important for the study of ground fissures in the Suzhou-Wuxi-Changzhou area.
This work for the first time confirmed in details the Neotectonic movement features of the Dalu-Yaoqiao Fault in Zhenjiang of Jiangsu Province,with the analysis of seismic profiles,interpretation of controlled-source anomaly bodies,field outcrop profiles,construction drill holes and joint hole profiles. The dating ages in the adjacent areas and the Middle-Late Pleistocene Xiashu Formation old loess suggest that the fault was active in the early stage of the Middle Pleistocene and before the Middle Pleistocene. The Neotectonic movements resulted in completely different lithologies on both sides of the fault,and formed two sets of sedimentary systems. The discovery of the Neotectonic movements has great guiding significance for the planning and construction of Zhenjiang City and the prevention of geological hazards,and is also important for the study of ground fissures in the Suzhou-Wuxi-Changzhou area.
引文
江苏省地质矿产局,1984.江苏省及上海市区域地质志[M]北京:地质出版社.
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孙金龙,徐辉龙,李亚敏,2009.南海东北部新构造运动及其动力学机制[J].海洋地质与第四纪地质,29(3)61-68.
万天丰,2007.中国大地构造学纲要[M].北京:地质出版社.
王应斌,黄雷,刘廷海,2012.渤海新构造运动主要特征与构造形式[J].中国海上油气,24(增刊1):6-10.
武健强,吴曙亮,闵望,等,2014.苏锡常地区地面沉降防控最新进展评述[J].地质学刊,38(2):319-323.
许学汉,1994.新构造研究与应用[M].北京:地质出版社.
徐金山,2004.南昌地区二种新构造运动的发现及其重要意义[J].华东铀矿地质,(2):26-29.
徐杰,计凤桔,周本刚,2012.有关我国新构造运动起始时间的探讨[J].地学前缘,19(5):284-292.
赵忠海,2009.北京平原区新构造活动及其引发的不良地质现象分析[J].资源环境与工程,23(3):282-286.
张蕾,张绪教,武法东,等,2013.太行山南缘晚更新世以来河流阶地的发育及其新构造运动意义[J].现代地质,27(4):791-798.
江苏省地质矿产局,1989.宁镇山脉地质志[M].江苏南京:江苏科学技术出版社.
江苏省地质调查研究院,2012.苏州城市地质调查报告[R]江苏南京:江苏省地质调查研究院.
刘以宣,钟建强,1994.南海及邻域新构造运动基本特征[J]海洋地质与第四纪地质,14(4):1-14.
孙金龙,徐辉龙,李亚敏,2009.南海东北部新构造运动及其动力学机制[J].海洋地质与第四纪地质,29(3)61-68.
万天丰,2007.中国大地构造学纲要[M].北京:地质出版社.
王应斌,黄雷,刘廷海,2012.渤海新构造运动主要特征与构造形式[J].中国海上油气,24(增刊1):6-10.
武健强,吴曙亮,闵望,等,2014.苏锡常地区地面沉降防控最新进展评述[J].地质学刊,38(2):319-323.
许学汉,1994.新构造研究与应用[M].北京:地质出版社.
徐金山,2004.南昌地区二种新构造运动的发现及其重要意义[J].华东铀矿地质,(2):26-29.
徐杰,计凤桔,周本刚,2012.有关我国新构造运动起始时间的探讨[J].地学前缘,19(5):284-292.
赵忠海,2009.北京平原区新构造活动及其引发的不良地质现象分析[J].资源环境与工程,23(3):282-286.
张蕾,张绪教,武法东,等,2013.太行山南缘晚更新世以来河流阶地的发育及其新构造运动意义[J].现代地质,27(4):791-798.