安徽五河河口—天井湖一带金矿综合物探找矿效果及找矿方向

COMPREHENSIVE GEOPHYSICAL PROSPECTING RESULTS AND PROSPECTING DIRECTION OF GOLD DEPOSITS IN THE HEKOU——TIANJING LAKE AREA,WUHE,ANHUI

五河河口—天井湖一带金矿主要受北北东-北东向断裂构造控制,通过开展覆盖区“中大比例尺综合物探组合方法”,结合“一选三定四阶段反复循环”覆盖区综合找矿模式,在20km2范围内圈定4条金矿化带,并进行钻探验证,新发现中型金矿床2处、小型金矿床2处,总规模达大型,实现了郯庐断裂带安徽省境内找金重大突破。本文通过综合物探方法在河口金矿、天井湖金矿的物探找矿应用效果,总结典型矿床综合物探异常特征,提出下步找矿方向。

Gold deposits in the Hekou--Tianjing Lake area,Wuhe,are mainly controlled by NNE-NE trending fault structures.By applying the"medium-and large-scale comprehensive geophysical exploration method",combined with comprehensive prospecting model of"one selection,three determinations,four steps,and repeated optimization"in the covered area,four gold mineralization belts were delineated within 20 km2 and drilling verification was carried out.Two medium and two small gold deposits have been newly discovered,with the total resource reaching up to large scale.This is a major breakthrough in gold prospecting in the Tan-Lu fault zone in Anhui Province.Based on the result of application of comprehensive geophysical method in prospecting the Hekou and Tianjing Lake gold deposits,this paper summarizes the features of comprehensive geophysical anomalies of typical deposits and puts forward the further prospecting direction.