摘要
宁镇山脉由南京至镇江一带绵延一百多公里的低山、丘陵组成,其南东为句容盆地,对应宁镇断凸、句容凹陷两构造单元,以汤山-东昌街隐伏深大断裂分界。前人推测该断裂为南倾正断层,但缺少更详细的资料。本文利用音频大地电磁法(AMT)结合重力、磁力资料,探明了汤山-东昌街断裂的平面位置和垂向展布,解析了断层两侧宁镇断凸与句容凹陷的深部地质结构,揭示了宁镇地区盆山结合部深部地质信息。
Nanjing-Zhenjiang Mountain range is composed of low mountains and hills stretching more than 100kilometers from Nanjing to Zhenjiang in Jiangsu Province. To the southeast of the Nanjing-Zhenjiang Mountain range is the Jurong Basin, which corresponds to two tectonic units of Nanjing-Zhenjiang fault-convex and Jurong Hollow and is delimited by Tangshan-Dongchangjie hidden deep fault. The fault was presumed to be a south dip normal fault, but more detailed data are lacking. In this paper, the plane position and vertical distribution of the Tangshan-Dongchangjie fault were proved by audio frequency magnetotelluric sounding(AMT) combined with gravity-magnetic data, and the deep geological structure of Nanjing-Zhenjiang fault-convex and Jurong Hollow on both sides of the fault was analyzed, revealing the deep geological information of the basin-range junction zone in Nanjing-Zhenjiang area.
作者
韩红庆
阮娟
殷梅
崔健
岑超
HAN Hongqing;RUAN Juan;YIN Mei;CUI Jian;CEN Chao(NO.814 Geophysical Exploration Co.,Ltd,Nanjing 210007,China;Jiangsu Geological Bureau,Nanjing 210007,China)
出处
《四川有色金属》
2022年第4期40-43,共4页
Sichuan Nonferrous Metals
基金
江苏省有色金属华东地质勘查局基础科研项目“基于地球物理数据的地下水源识别软件系统研发”(HDYS-KY2020-02)
江苏省有色金属华东地质勘查局基础科研项目“老矿山深边部地球物理找矿方法技术集成”(HDYS-KY2021-05)。
关键词
音频大地电磁法(AMT)
宁镇山脉
句容盆地
盆山结合部
地质结构
audio frequency magnetotelluric sounding(AMT)
Nanjing-Zhenjiang Mountain range
Jurong Basin
basin-range junction zone
geological structure
