重砂取样是地质测量与普查找矿工作过程中不可缺少的一项工种,不仅方法简便,而且也很可靠,短期内能获得一系列重要有用矿物在大面积上分布与富集的资料,从而对下一步矿产普查指出了方向,并且概括的了解广大地区矿产远景的一般评价。因此根据重砂取样的成果,不仅是从金属矿物机械分散晕中有 Heavy sand sampling is an indispensable type of work in geological surveying and prospecting. It is not only simple and reliable, but also can obtain a large number of important useful minerals distributed and enriched on a large area in a short period of time. Pointing out the direction for the next mineral survey and general understanding of the general assessment of the mineral prospect in many areas. Therefore, according to the results of heavy sand sampling, not only scattered from the metal mineral mechanical halo there