武夷山成矿带桃溪隆起、岩浆侵入和区域铜多金属矿成矿作用

武夷山成矿带内矿区的最大特征就是分布有老地层和岩浆岩.老地层集中分布区——桃溪隆起区是武夷山隆起的一部分, 表现为变质核杂岩的特征, 其中分布着大中型铜多金属矿床和大量的多金属矿点, 如紫金山铜金矿、岩背锡矿和红山铜矿, 它们是武夷山成矿带乃至中国东部的典型特征.主要矿床的成矿年龄集中于130~90 Ma, 属燕山晚期; 成矿特征表现为斑岩型-岩浆热液型铜多金属矿.成矿斑岩体成岩时代90~140 Ma, 多为燕山期复式杂岩体的中晚期, 桃溪隆起区这种时空一致性是由于中生代晚期岩石圈拆沉的产物.桃溪隆起区在中生代晚期经历了岩石圈加厚期后的拆沉、软流圈物质侵入、岩浆作用及其伴随的成矿作用.这些认识对该区找矿部署具有重要的意义. 

Taoxi Uplift of Wuyi Metallogenic Belt,Its Tectonics,Magmatism and Metallogeny

Taoxi uplift is a part of Wuyishan uplift and occurs as metamorphic core complexes.There are abundant medium to large scale copper and polymetallic ore deposits distributed in the uplift,such as the super large scale Zijinshan copper-gold deposit,super large Yanbei tin deposit,and large scale Hongshan copper deposit.This area is representative of a rich segment of Wuyi metallogenic belt.The main geochronology dating of mineralization concentrates in the range of 130-90 Ma,the late Yanshan period.The ore dep...