赤峰柴胡栏子金矿区矿体成矿规律及其找矿应用

The Metallogenic Regularity and Prospecting Application of Chaihulanzi Gold Mine

柴胡栏子金矿位于铭山隆起(云雾山隆起)北东端,处于深大断裂向北突出的弧形内侧(南侧),即构造线变异部位的蚀变岩型金矿床。矿区内分布有2条金矿化带,分布于倒转背斜次级褶皱的轴部转折端附近。矿石类型为蚀变岩及石英脉混合型。矿体产于蚀变片岩中,受闪长玢岩控制,矿体品位呈上富下贫变化特点,激电异常分为三区8个异常带。通过对矿区成矿规律的研究,确定了柴胡栏子金矿:蚀变片岩+次级褶皱+闪长玢岩+测深异常→靶位确定→钻探+坑探的找矿模式。并在实践中得到了较好的效果。

Chaihulanzi gold mine located in the north-east of Mingshan uplift and arc inside of deep fault which prominent for north,that is,parts of tectonic line mutation of altered rock type gold deposit.there are two gold belt in the mine,located in the anticline axis of overturned secondary folds.Ore type is altered rock and quartz veins mixed type.Orebody produced in alteration schist,and it is controlled by diorite,the grade of orebody has the feature of under poor goes to rich,IP anomalies divided into three zone and eight anomaly zone.Through studies of the metallogenic law of the mine,we determine prospecting model：altered schist＋secondary folds＋diorite＋identify abnormal sounding→target→drilling＋pitting,and has a good results in the practice.