大厂矿田长坡矿床深部区叠瓦状构造控矿特征及找矿前景分析

Control of mineralization of imbricate structure and prospecting perspective in deep part in the Changpo deposit of Dachang ore filed

长坡矿床深部区是近年来在大厂长坡矿区深部取得了较好找矿效果的一个勘查靶区,新发现了77-1号、77-2号、75-1号、115号等多个锡多金属矿体,这些矿体均赋存于大厂断裂F1及其下盘F1-1、F3、F5组成的叠瓦状构造中,锡多金属矿体呈似层状、脉状产出,这些新发现展示了良好的找矿前景。文章在研究该勘查区矿床特征及叠瓦状构造控矿特征的基础上,结合井中物探、化探资料,对该区的找矿远景和找矿方向进行了探讨。

Deep district of the Changpo deposit is a target area with good prospecting result in recent years in deep part exploration in Changpo ore field of Dachang. Several tin polymetallic orebodies such as No. 77-1, 77-2,75-1,115 have been found recently, which occur in imbricate structures composed of Dachang fracture F1 and F1-1 ,F3, F5 on its foot wall. Tin polymetallic orebodies occur in stratiform or vein. The new discovery shows great potential in exploration. The prospecting outlook and orientation were discussed in the paper, based on the research of deposit characteristics and ore controlling characteristics of imbricate structure, combined with well geophysical and geochemical data.