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本文根据我国锡矿床的地质条件和地球物理、地球化学的主要特征,划分了锡矿的找矿方法类型,总结了物化探方法在找锡矿上的应用,并对我国锡矿成矿空间分布规律和对今后找锡提出了初步看法。提出的锡矿床三种找矿方法类型是:硫化物型矿床、氧化物型矿床和砂锡矿床。地球物理方法在勘查锡矿床的主要作用是:反映大地构造和区域地质构造;圈定花岗岩体分布范围,了解其形态和界面的起伏情况;研究围岩的蚀变现象;用萤光法圈定矿床,确定其产状和品位。化探的主要作用是:快速圈定成矿远景区,直接发现大中型矿床,扩大矿山远景,研究元素组合分带,圈定成矿远景区。
According to the geological conditions of tin deposits in our country and the main features of geophysics and geochemistry, this paper divides the types of prospecting methods for tin deposits, summarizes the application of geophysical and geochemical methods in prospecting for tin deposits, and analyzes the distribution of tin mineralization in China The law and the future tin find a preliminary view. The proposed three types of prospecting methods for the tin deposits are: sulfide-type deposits, oxide-type deposits and sand-tin deposits. The main functions of geophysical methods in prospecting tin deposits are: reflecting the tectonics and regional geological structure; delineating the distribution range of granite bodies, understanding the undulations of their morphology and interface; studying the alteration of surrounding rocks; delineating ore deposits by fluorescence method, Determine its production and grade. The main functions of geochemical exploration are: rapid delineation of the prospecting area, direct discovery of large and medium-sized deposits, expansion of the prospect of the mine, study of elemental zonation and delineation of the prospecting area.