宁夏卫宁北山金场子—二人山岩体重磁资料处理解释
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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.
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.
引文
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[4]仲佳鑫,李欢,李鹏,等.宁夏卫宁北山金场子金矿床地质特征与控矿因素分析[J].西北地质,2012,45(3):82-92.
[5]邱朝霞.宁夏金场子金矿床氧化带中微细金球特征[J].地质与勘探,1989(8):39-42.
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[10]王兴强,王泽晶,王改平,等,卫宁北山地区铜矿地质特征及找矿标志[J].中国西部科技,2014,13(3):27-28.
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