鄂东封三洞铜(金)矿床周边外围金银及金银多金属矿找矿新成果综述

鄂东封三洞铜(金)矿床是一典型的与浅成一超浅成小岩体侵入有关的矽卡岩一斑岩角砾岩简复合型大型矿床。近来年,通过实施使用矿产资源补偿费勘查项目和风险勘查项目,在其周边外围,物化探测量获得了多个物化探组合异常带和大量局部异常,经验证,多为金银及金银多金属矿化体引起;地质勘查分别在其东区、西区、北部、东南部发现了具有一定规模和良好找矿前景的金银及金银多金属矿化带(或区段)。上述地质找矿成果表明;在一个大型矿集区中,已知大型矿床(老矿山)周边外围仍是找矿最为有利、最有希望的地区。

NEW ACHIEVEMENTS OF Au (Ag) POLYMETAL ORES PROSPECTING IN OUTSIDE SURROUDING AREA AROUND FENGSHANDONG GOLD DEPOSIT IN EASTERN HUBEI

The Fengshandong Cu (Au) ore deposit is a typical large-scale ska rn - porphyry brecciapipe deposit which is related to hypabyssal and ultra- hypabyssal intrusion of small rock bodies. During recent years several geophysical and geochemical abnormal zones and much more local anomalies which are usually connected with Au, Ag and polymetal mineralization have been discovered in the outside surrounding area of this deposit, while the prospecting projects supported by mineral resources compensation fee and the risk exploration projects were carried out. And geological exploration also shows that some Au, Ag and polymetal mineralization zones (or segments) with a certain scale and better prospecting potentiality occur in the eastern, western, northern and southeastern areas. All these suggested that it should be still the most useful and hopeful area for ore prospecting around the existing large scale of ore deposit.