武夷山成矿带锡铜多金属矿床控矿条件和找矿预测标志

武夷山成矿带锡铜多金属矿床主要分布于深大断裂带旁侧的次级构造带内,与晚侏罗世-早白垩世形成的次火山花岗杂岩有密切的成因联系。上侏罗统火山岩系、震旦系和寒武系浅变质岩系是区内最主要的含矿围岩,不同的火山岩组合控制了不同的矿化类型。成矿花岗杂岩体主要是富含成矿元素和挥发份、并具多期次分异特征的次火山花岗杂岩体。褶断构造、环形构造控矿作用明显,控制矿床定位的构造多为复合构造,具有明显的扭动特征。在深入研究本区控矿地质条件基础上,总结了本区锡铜多金属矿床的找矿标志。

Ore-contronling factors and prospecting prediction criteria of the Sn-Cu polymetallic deposit in Wuyishan metallogenic zone

The Sn-Cu polymetallic deposit of Wuyishan metallogenic belt is mainly occurred in the secondary tectonic zone beside the deep and major fault,whose formation is closely related to sub-volcanic granite complex formed in Late Jurrasic-Early Cretaceous.The most primary ore-bearing wall rocks are volcanic rocks series are composed of Upper Jurassic volcanic series and metamorphic rocks series of Sinian system and Cambrian.Ore-forming granites are mainly dominated bysub-volcanic granite complex with rich ore-fo...