河北下金宝沟金银多金属矿区物化探综合信息成矿预测

Integrated information-based ore prediction in the Xiajinbaogou Au,Ag poly-metal property in east Hebei province

下金宝沟金银多金属矿区位于华北地台北缘中段的冀北银金矿床密集区,矿区地质构造背景复杂,岩浆岩活动强烈。矿区金矿体主要赋存于花岗斑岩体内,受构造裂隙带的控制,硅化、绢云母化等与金矿化的关系密切。通过物探与化探相结合的方法进行成矿预测,经工程验证效果良好。

The Xiajinbaogou Au-Ag poly-metal property is located in Ag-Au deposit-clustered area in the middle of north margin of the North China platform.The property is complicated in geological structure and strong magmatism.Au ore bodies occur mainly in granitic porphyry body and are controlled by tectonic fractural zone.Silicification and sercitization are closely related to Au mineralization.Geophysical survey is combined with geochemical survey to predict ore in the property.The prediction is checked by the ore prospecting techniques with good results.