甘肃天水宽沟金矿床构造叠加晕研究及盲矿预测

宽沟金矿位于北秦岭褶皱带西南缘，矿床严格受构造控矿，雨子沟次级断裂是本区的主要控矿构造。区内侵入岩体十分发育，石英正长岩脉与金矿化关系密切。基于热液型金矿床的成矿理论，采用构造叠加晕新技术，在该区开展深部盲矿找矿工作，建立了矿床构造叠加晕模式。矿区构造叠加晕分析结果显示，成矿具有多期、多阶段叠加的特征。通过研究该区原生晕轴向分带特征，识别出不同成矿阶段所形成的矿体（晕）在空间上的叠加结构，确定了盲矿预测标志，提出了盲矿靶位，初步验证己取得了很好的找矿效果。

Research on the Structural Superimposed Halo and Blind Ore Forecast of Kuangou Gold Deposit in Tianshui County,Gansu Province

Kuangou gold deposit located in the southwestern margin of the North Qinling fold belt,the deposit is strictly controlled by the structural,Yuzigou secondary fault is the main ore-controlling structure of this area.The intrusive rocks are well developed in the region,quartz syenite veins are closely related to gold mineralization.Based on the metallogenic theory of the epithermal gold deposit,we use new technology of structural superimposed halos to carry out deep blind ore prospecting work in this area,and establish the model of structure superimposed halo. Through analysis of the structure superimposed halo of the mine,we find that the mineralization have the characteristics of multi-stages superimposed.