葛坪铅锌矿地质特征及成矿阶段划分

摘要

geping lead-zinc deposit is a low-to-moderate temperature hydrothermal deposit formed through multiple stages. The main mineralization types are vein, sparse and dense disseminated. In this paper, the basic geological characteristics of geping lead-zinc mine are expounded. And based on the observation and study of the different mineralization and the alteration of ore deposits in the wild, and the study of the ore structure, tectonics, mineral assemblage and sequence relation indoor, the formation of the deposit can be divided into five metallogenic stages: 1 early skarn stage; 2 late skarn stage; 3 the vein lead-zinc sulphide stage; 4 quartz sulfide stage; 5 the calcite phase.%葛坪铅锌矿是一个多阶段形成的中温热液充填交代矿床，主要的矿化类型有脉状、稀疏和稠密浸染状等。本文阐述了葛坪铅锌矿的基本地质特征，并通过在野外对矿床不同的成矿作用及矿化蚀变的观察研究，及室内对矿石结构、构造、矿物组合及先后关系的研究，将矿床的形成划分出五个成矿阶段：1早矽卡岩阶段；2晚矽卡岩阶段；3脉状铅锌硫化物阶段；4硫化物-石英阶段；5方解石阶段。