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江西银坑矿田位于南岭—武夷山—赣东北三大成矿带交汇斜接部位,以同时发育钨多金属矿床和银金铅锌锰矿床组合为特色,是南岭地区最重要的贵金属找矿远景区之一。近年来,在成矿系列理论指导下,银坑矿田在破碎带热液脉型贵金属找矿方面取得重要突破,在陆内成矿理论创新方面取得了重要进展。本文系统总结了银坑矿田两类矿床的时空分布规律、成矿期次与控矿要素,结合南岭科学钻探两类矿化的垂向分带特征,阐明了两类矿化组合在三维空间内的分带性,在成矿时间上的集中性(150~160 Ma),是华南中生代两类矿床成矿系列(南岭与花岗岩有关钨锡矿床成矿系列和赣东北与花岗闪长岩有关贵金属成矿系列)在银坑地区时空四维尺度的叠加。按成矿系列之“全位成矿与缺位找矿”理论,进一步指明了银坑地区的找矿方向,即应围绕江背复式岩体在内带寻找张家地式、在接触带寻找岩前式和狮吼山式、在外带寻找画眉坳式钨多金属矿床;在银坑—青塘盆地内围绕推覆构造上下盘开展贵金属找矿,重点部署推覆构造界面内和脉体收敛方向深部的厚大矿体勘查,在高山角和井笔山外围探索斑岩型-爆破角砾岩型矿化规模。
Jiangxi Yinkeng ore field is located in the intersection of Nanling - Wuyishan - northeastern part of the three metallogenic belt. It is characterized by simultaneous development of tungsten polymetallic deposits and silver-gold-lead-zinc-manganese deposits. It is the most important precious metal prospecting in the Nanling area One of the prospects. In recent years, under the guidance of the theory of metallogenic series, the Yinkeng orefield has made an important breakthrough in the prospecting of hydrothermal vein-type precious metals in fractured zones, and important progress has been made in the innovation of intra-continental mineralization theory. This paper systematically summarizes the temporal and spatial distribution of two types of deposits in the Yinkeng ore field, metallogenic stages and ore-controlling elements. Combined with the vertical zoning characteristics of two types of mineralization in the Nanling scientific drilling, The zonality within the space is concentrated in the ore-forming time (150 ~ 160 Ma) and is the Mesozoic two types of ore-forming series of Mesozoic in south China (related to the mineralization series of Nanling and granite related to tungsten and tin deposits and the northeast and granite flash Long rock related to the precious metal mineralization series) in Yinkeng area four-dimensional space-time superposition. According to the theory of “complete metallogenesis and lack of prospecting” in the metallogenic series, the direction of ore prospecting in the Yinkeng area is further indicated, that is, the Zhangjiagou type should be searched for in the inner belt of the Jiangbei- Looking for prehistoric rock and roar mountain type, in the outskirts to find the thrush Au-type tungsten polymetallic deposits; in the silver pit - Qingtang basin around the nappe structure of the upper and lower plate to carry out prospecting for precious metals, focusing on the deployment of the thrust structure interface and vein Body thick convergence in the depth direction of the ore body exploration, exploration in the outer corner of Gaoshan and Pen Pishan porphyry - blasting breccia-type mineralization scale.