辽宁四合顺硫铁矿地质特征、矿床成因与找矿标志分析

THE SIHESHUN PYRITE DEPOSIT IN LIAONING PROVINCE: Geology,genesis and prospecting indictors

通过对辽宁四合顺硫铁矿床成矿地质背景条件、矿床体空间展布特征、矿石及蚀变矿物组合的分析研究,得出四合顺铁矿属中-高温热液充填交代型矿床.其主要的控矿和成矿构造为东西构造,也是区域构造找矿方向.硅化、绢云母化、绿泥石化等蚀变矿物组合是其主要的找矿标志.结合地球物理和地球化学异常,指出了该区地质、地球物理、地球化学找矿方向,实现区域深部及边部找矿突破.

Based on the analysis of the geological background, distribution of orebodies, characteristics of ore and altered minerals, it is concluded that the Siheshun pyrite deposit belongs to meso-hydrothermal filling and metasomatic type. The main ore-controlling and ore-forming structures are the east-west-trending faults, which are also the direction for regional prospecting. The altered mineral assemblage of silicification, sericitization and chloritization is the major indictor for ore- searching. With geophysical and geochemical anomalous features, the exploring direction is point out to achieve the prospecting breakthrough in the deep and peripheral areas.