河北省麻子沟铅银矿床地质特征及理想成矿模式探讨

麻子沟铅银矿床为次火岩—中低温热液矿床。次火山岩侵入活动过程中的热液,是成矿的主要热液来源。热液沿断裂破碎带溶解地层中的成矿物,使其在热液中富集,在成矿有利部充填、交代围岩形成矿体或矿化。通过对成矿条件、地质特征、控矿因素、矿化蚀变特征及矿体赋存位置分析,建立理想成矿模式,明确区内的找矿方向。

Geological features and the ideal metallogenic model of Mazigou lead-silver deposit in Hebei province

Mazigou lead-silver deposit is belonged to the low-temperature hydrothermal deposit in sub-volcanic rocks. The hydrothermal fluid in the process of sub-volcanic intrusions is the main ore-forming hydrothermal source. The hydrothermal fluid dissolves minerals along the fracture zones. They accumulate in the fluid, fill and alter wall rocks to form mineralization or ore body in the favorable place. Through analysis of the ore-forming conditions, geological features, ore-controlling factors, mineralization and alteration characteristics and location of ore occurrence, the ideal model is proposed and a clear direction is pointed out for the prospecting area.