小南沟金矿构造控矿特征及成矿预测

河南熊耳山地区的金矿大多产于NE向和近E-W向断裂中.近年来发现的小南沟金矿受控于近S-N向断裂，开拓了该地区金矿找矿的新思路.研究表明，近S-N向的控矿断裂为NNW向与NE向一组共轭断裂的复合成因，是在E-W向基底断裂的基础上发育形成的，成矿作用与区域成矿具有一致性.总结出NE向断裂有利成矿的断裂走向勘探标志，指出小南沟金矿的外围仍有良好的找矿条件，NNW向、NE向与NWW向断裂构造交汇部位有利成矿.小南沟主矿体存在向北的迅速侧伏，侧伏的原因与E-W向断层北倾以及NNW与NE向断层交汇线的向北侧伏有关.

CHARACTERISTICS OF ORE CONTROL FAULT SYSTEM IN XIAONANGOU GOLD DEPOSIT,HENAN PROVINCE

Most of the gold deposits in the Xongershan area,Henan province,occurr in NE and E W trending faults.But the recently discovered Xiaonangou deposit is in the fault running north south,which appears to show a new approach for exploring in this district.The study on the fault system around the mine suggests that the S N trending fault controlling the orebodies is composed by the conjugate NE and NNW trending. Based on that,it is considered that the intersections of the faults running NNW,NE,and NWW,especially the fault along NE,are good ore forming positions for gold deposits.The orebody sidepitches rapidly to north,which may be coursed by the pitching to north of the E W fault or the cross line of the faults trending NE and NNW.