景德镇朱溪铜钨多金属矿床地质特征及成矿机制

景德镇朱溪铜钨多金属矿床是近年在赣东北地区发现的一个超大型矽卡岩矿床.在对该矿床成矿地质背景已有认识的基础上,对其地质特征和成矿机制进行了初步探讨.结果表明,朱溪矿区具有“三位一体”的成矿模式：上部为热液脉型矿体,中深部为矽卡岩型矿体,更深部为斑岩（蚀变花岗岩）型矿体,且矿化在水平方向上由北东往南西及垂直方向由浅到深,出现Cu→Cu-W→W-Cu的规律性矿化趋势.朱溪矿床的形成经历了一个漫长又复杂的地质过程,其中与铜钨多金属关系密切的主要为氧化物阶段和金属硫化物阶段,且成矿作用并非一次完成,可能是多次成矿作用相互叠加才形成如此巨量的铜钨资源量.

On geological features and metallogenic mechanism of Zhuxi Cu-W polymetallic deposit in Jingdezhen of Jiangxi

Zhuxi Cu-W polymetallic deposit, discovered in northern Jiangxi in recent years, was a perspective super large-scale skarn deposit. Based on metallogenie background study, the authors mainly discussed the geological features and metallogenic mechanism in Zhuxi ore deposit. It is suggested that the Zhuxi mining district exhibited a typical metallogenic model ~ the upper part of it was mainly hydrothermal vein type ore bodies; the moderate-deep part of it exhibited skarn type ore bodies; and the deeper part was granite-porphyry （ altered granite） ore bodies. In addition, from northeast to southwest （ horizontal direction） as well as from shallow to deep （ vertical direction） there appeared a regular Cu→Cu-W→W-Cu mineralization trend. Zhuxi ore deposit experienced a long term and complex geological evolution process, and the oxide stage and metal sulfide stage were closely related to Cu-W polymetallic mineralization. Mineralization was not happened for once, it experienced superimposition for multi mineralization facies to form such a huge amount of Cu-W reserve.