摘要
NW向、NE向两组断裂形成的格子型构造总格局,严格控制了冀北地区金矿、铅锌银矿的空间展布规律,控制了该区地球化学场和异常的空间分布特征。NW向、NE向断裂构造,是本区主要成矿控矿断裂构造,特别是NW向断裂构造,它横贯全区,控制着整个铅锌银矿、金矿的地质成矿规律,成为该区的一大特点,也是解决该区预测找矿问题的焦点。NW向、NE向断裂构造交汇处,多为金矿、铅锌银矿矿化密集区。本文从地质、物探、化探等不同的角度对该区断裂构造成矿控矿进行了初步分析,指出了下一步找矿靶区。
The lattice pattern formed by the NW-trending and NE-trending fractures strictly controls spatial distributions of Au and Pb-Zn- Ag deposits geochemical fields and anomalies in the northern Hebei. NW and NE fractures are main ore-forming, ore-controlling struc- tures. Specifically, NW fracture structures traverse all the ared and control the metallogenetic law of all Pb-Zn-Ag ang Au deposits, which becomes a characteristic in this ared and is also a heart of the matter to settle prediction and prospecting. The majority of the intersections of two fracture structures with NW-frending and NE- frending are concentrating places of mineralization of Au and Pb- Zn-Ag deposits. From various angles of geology, geoexploration, and geochemical prospecting, this paper makes preliminary analysis on ore-forming and ore-controlling of the fracture structures and indicates further ore-prospecting targets.
