小秦岭西段驾鹿金矿田成矿条件及找矿前景浅析

驾鹿矿田既有葫芦沟蚀变岩型金矿，亦有石英脉型金矿。太华群地层、断裂构造以及岩浆活动是矿田金矿形成的主要地质条件。太华群秦仓沟组原岩为中基性火山岩，含丰富的成矿元素，是金矿的初始矿源层。矿田内呈东西向的朱家沟断裂为区域性深大断裂，是成矿的导矿构造；北东向构造最发育，不同级次北东向断裂是金矿的导矿、配矿和容矿构造；南北向断裂是东西、北东向大断裂派生的次级容矿断裂，亦是石英脉型金矿的赋存场所。燕山期岩浆活动对成矿起了积极有益的作用。东西向朱家沟断裂与北东向主干断裂交汇的三角地带是找矿的有利靶区。

METALLOGENIC CONDITIONS AND PROSPECTING OF THE JIALU GOLE ORE FIELD, WESTERN XIAOQINLING

The Hulougou gold deposit hosted in altered fractures and gold-beraing quartz veins are housed in the Jialou ore field. The main metallogenic condition is attributed to Taihua Group, faults and magmatism. The primary rocks of Qincanggou Formation is intermediate -basic volcanic rocks which contain abundant ore-forming elements and is an original source bed. The Zhujiagou regional fault serves as the producing structure. The well-developed NE-trending structures at different subordinate level are the producing, oriented and housing structures. The NS-trending faults derived from the EW-trending and NE-trending large-scale faults are also ore-housing structures.Yanshannian magmatism is the pomotion for mineralization. The triangle convergence of EW-trending fault and NE-trending faults is the good prospecting target.