过去,重砂普查方法主要是以查明各种松散沉积物中物理化学性质相当稳定的金属矿物并对它们的晕圈进行填图为基础的,这种仅仅依靠鉴定出来的重矿物无疑降低了重砂方法在普查工作中的作用。现在,重砂方法出现了一些新的发展方向,这就使得重砂方法能够提供更全面、更详细,并且更多的找矿信息。 In the past, heavy sand census methods have been based primarily on the identification of metallic minerals that are quite stable in physical properties in a variety of loose sediments and their halo mapping, which undoubtedly depended only on the identification of heavy minerals The role of heavy sand in census work. Nowadays, there are some new development directions for the heavy sand method, which makes the heavy sand method provide more comprehensive, more detailed and more ore prospecting information.