大兴安岭地区是我国北方重要的银、金、铅、锌、铜多金属成矿区,其中已发现大、中型银矿床达十余处,且所有的有色金属矿床中都含银[1]。该区不仅矿床类型丰富,矿产种类也是非常之多,历来受到国内外众多地质学家们的关注[2-4]。随着找矿勘探工作的不断深入,20世纪80年代又在大兴 The Greater Xing’an Mountains region is an important gold, gold, lead, zinc and copper polymetallic ore-forming area in the north of China. There are over ten large and medium-sized silver deposits found in the Daxinganling area, and all the non-ferrous metal deposits contain silver [1]. The area is not only rich in mineral deposits but also rich in mineral resources. It has always been the focus of many geologists at home and abroad [2-4]. With the continuous deepening of prospecting and exploration work, Daxing was again established in the 1980s