则学矽卡岩型铅锌银矿床成矿模式探讨

Analysis of the mineralization and metallogenic model of Zexue skarn lead zinc silver deposit

本文通过介绍则学矽卡岩型铅锌银矿床的基本地质特征,分析成矿地质作用,对则学矽卡岩型铅锌银矿床成矿模式进行探讨。研究表明,喜山期岩浆活动强烈,岩浆或深部气水热液与古生代(C-P)碳酸盐岩、碎屑岩等接触,成矿流体与围岩发生双交代作用,在不同部位以充填或交代方式形成铅锌银多金属矿体。

This article shows a simple metallogenic model through the introduction of basic geological features and the analysis of the metallogenic geological process of Zexue skarn lead zinc silver deposit. Research shows that with the Himalayan magmatic activities, magmatic or deep gas hydrothermal fluids contact with carbonate rocks and clastic rocks formed during Paleozoic（C-P）. The double metasomatism occurs between the ore-forming fluid and the surrounding rock, and then forms the lead zinc silver polymetallic ore bodies by filling or metasomatism at different parts.