巍山紫金山金多金属矿化区地质特征

GEOLOGICAL CHARACTERISTICS OF ZIJINSHAN AU MULTIMETALLIC METALLOGENETIC AREA,WEISHAN

紫金山地区存在数条长数百米、宽几十米的金多金属矿化带。近南北向或北北西向构造破碎带为成矿物质的堆积提供空间条件,上三叠统三合洞组碳酸盐岩为成矿流体的沉淀提供岩性条件。紫金山金多金属矿化区及外围具有进一步找矿前景。

According to the information of surface exploratory trench, there are some Au multi-metallic metallogenetic zones, some hundreds of metres long and some decameter wide. The comprehensive study shows： the nearly NS or NNW structural fragmentation zone provided the space for the accumulation of metallogenetic material and the Upper Triassic Sanhedong Formation provided the lithological factor for the precipitation of metallogenetic fluid. According to the metallogenetic theory mentioned above, in combination with the geology and chemical anomaly of soil, we believe that the Zijinshan Au muhimetallic area and its surrounding region have a certain ore prospecting conditions.