青城子矿集区深部地质构造探测及找矿意义  

The exploration of deep geological structure in the Qingchengzi ore concentration area and its prospecting significance

作　　者：程莎莎 彭莉红[1,2,3] 孙栋华 王志宏 陈伟[1,2,3] CHENG Sha-Sha;PENG Li-Long;SUN Dong-Hua;WANG Zhi-Hong;CHEN Wei(Airborne Survey and Remote Sensing Center of Nuclear Industry,Shijiazhuang 050002,China;Key Laboratory of Airborne Survey and Remote Sensing,Shijiazhuang 050002,China;Key Laboratory of Uranium Resources Geophysical Exporation Technology,China Nuclear Industry Group Company,Shijiazhuang 050002,China)

机构地区：[1]核工业航测遥感中心,河北石家庄050002 [2]河北省航空探测与遥感技术重点实验室,河北石家庄050002 [3]中核集团铀资源地球物理勘查技术中心重点实验室,河北石家庄050002

出　　处：《物探与化探》2021年第4期859-868,共10页Geophysical and Geochemical Exploration

基　　金：国家重点研发计划项目“华北克拉通成矿系统的深部过程与成矿机理”(2016YFC0600100)。

摘　　要：青城子矿集区地处辽东裂谷区,是我国重要的铅锌、金银多金属成矿单元,区内已发现青城子铅锌矿、林家金矿、高家堡子银矿等多个矿床。为了解青城子矿集区深部地质侵入岩体分布情况以及断裂的空间展布情况,首次在青城子矿集区开展航空大地电磁、航空瞬变电磁和航空磁法综合测量工作。通过对测量数据进行视磁化率三维反演、电阻率三维反演的数据处理技术,结合已知基础地质资料,划分并重新厘定了区内已知控矿断裂,并对岩体深部分布情况进行圈定,结果显示:印支期双顶沟岩体与新岭岩体深部分布范围相对较大,沿新岭—尖山子一带构成了近SW向隐伏岩体带,均为独立岩体,古元古代大顶子岩体、马家隈子岩体和石家岭岩体深部也分别作为独立岩体。Located in eastern Liaoning rift area,the Qingchengzi ore concentration area is an important lead-zinc and gold-silver polymetallic metallogenic unit in China.Many deposits such as the Qingchengzi lead-zinc deposit,the Linjia gold deposit,and the Gaojiabaozi silver deposit have been discovered in this area.In order to understand the distribution of deep geological intrusive rock masses and the spatial distribution of faults in the Qingchengzi mining area,the authors carried out the comprehensive survey of aerial magnetotelluric,aerial transient electromagnetic and aerial magnetism in the Qingchengzi mining area for the first time.Through the data processing of magnetic three-dimensional inversion and resistivity three-dimensional inversion of the measured data and in combination with the known basic geological data,the known ore-controlling faults in the area were divided and redefined,and the deep part of the rock mass was delineated.The results show that the Indosinian Shuangdinggou pluton and the deep part of the Xinling pluton have a relatively large distribution range.A nearly EW-trending concealed pluton was formed along the Xinling-Jianshanzi area,and both of the plutons are independent intrusions.The deep part of Dingzi pluton and Shijialing pluton are also independent rock bodies.

关 键 词：青城子矿集区 航空大地电磁 航空瞬变电磁 航磁 深部地质结构 找矿意义 

分 类 号：P631[天文地球—地质矿产勘探]