一、绪言 银、铜矿是我国重要的普查矿产资源之一,亦是我省急需寻找的一个缺门矿种。笔者于一九八二年考察了湖北兴山银、钒矿,该矿赋存于上震旦统陡山沱组“黑层”中,矿石品位较高,质量较好,为一大型银、钒矿床。结合我省陡山沱组“黑层”亦有广泛分布,但过去对其含银性未作过地质调查研究,而该层主要分布于黔中及黔东地区,且多组成背斜核部及 I. INTRODUCTION Silver and copper mines are one of the most important census mineral resources in China and one of the missing mines urgently needed by our province. The author inspected Xinshan silver and vanadium deposits in Hubei Province in 1982. The ore was found in the “black layer” of the Upper Sinian Doushantuo Formation with high quality and good quality. It is a large-scale silver, Vanadium deposit. In combination with the “black layer” of Doushantuo Formation in our province, there are also widely distributed, but in the past, no geological investigation has been made on the silver-bearing properties of the Doushantuo Formation, but this layer mainly distributes in central Guizhou and Qiandong areas, and