一、前言四川某中型锡矿,赋存于摩沙营花岗岩侵入体的东部接触带附近,属锡石-矽卡岩型锡矿床。矿石中除含主要工业矿物锡石外,还含有可供综合利用的硫,铁等有价元素。全矿区表内锡金属储量近4万吨。因此,合理开发利用该矿对增加国民经济收入有着重大意义。 I. INTRODUCTION A medium-sized tin mine in Sichuan is hosted in the vicinity of the eastern contact zone of the granitic intrusive rock in the Mosaisha Camp, and is a cassiterite-skarn-type tin deposit. In addition to ore containing the main industrial minerals cassiterite, but also for comprehensive utilization of sulfur, iron and other valuable elements. The whole mining area tin metal reserves of nearly 40,000 tons. Therefore, the rational development and utilization of the mine is of great significance to increasing the national economy.