宁夏卫宁北山金场子—二人山岩体重磁资料处理解释  

Processing and Inversion of Gravity and Magnetic Data in Jinchangzi-Errenshan Rock in the North Mountain of Weining Area,Ningxia

作　　者：朱丹[1] 刘天佑[1] 代小强 

机构地区：[1]中国地质大学地球物理与空间信息学院,湖北武汉430074 [2]宁夏地球物理地球化学勘察院,宁夏银川750004

出　　处：《工程地球物理学报》2015年第6期766-771,共6页Chinese Journal of Engineering Geophysics

摘　　要：卫宁北山是宁夏重要多金属矿成矿区,渗流卤水—表生改造型金矿及铅、银等多金属矿的形成与深部岩体的作用有关。利用磁异常化极、水平总梯度模法对磁异常进行处理,得出金场子—二人山岩体的平面特征及岩体边界。对过异常中心的东西、南北向两条重磁剖面,采用欧拉齐次方程法、二维磁化率成像和2.5D重磁异常人机交互反演进行反演解释,得出金场子—二人山深部岩体形态及特征,该结果与电法、钻探一致。对于金场子—二人山地区进一步寻找金与铅、银等多金属矿具有指导意义。The north mountain of Weining area is an important polymetallic metallogenic area,the formation of mineralized material,including transmissive brine-supergene reformation gold deposit,lead and silver,are related to the action of the deep rock mass.The magnetic anomaly of poles and the level of total gradient are used to process the magnetic anomaly,so the characteristics and rock boundaries of Jingchangzi-errenshan rock are obtained.For the east-west and nourth-south magnetic profiles passing the center of anomaly,Euler Deconvolution Method,2DImaging of magneric susceptibility and 2.5Dhuman-computer interaction inversion are used for inversion interpretation,so the formation and characteristics of deep rock in Jingchangzi-errenshan rock are obtained.The result is consistent with electrical method and drilling.The conclusions played a significant role in polymetallic metallogenic exploration in Jinchangzi-errenshan area.

关 键 词：卫宁北山 金场子—二人山岩体 重磁异常 多金属矿 

分 类 号：P631[天文地球—地质矿产勘探]