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广西已发现的内生锡石硫化物矿床,在成因上可分为两大类:一类是与岩浆期后热液有关的矿床,另一类是变质热液成因的矿床。本文以大厂矿田的长坡矿床和桂北地区的九毛矿床为例,从地球化学特征上探讨这两类矿床的共性和差异。
The discovered endogenous cassiterite deposits in Guangxi can be divided into two major types on the basis of their genesis: one is related to the post-magmatic hydrothermal deposits and the other is the metamorphic hydrothermal deposit. Taking the Changpo deposit of Dachang orefield and the Jiumao deposit in northern Guangxi as an example, this article discusses the commonalities and differences of these two types of deposits from geochemical characteristics.