【摘要】 江西德兴地区是中国重要的金属矿产资源聚集地,主要矿床有德兴斑岩铜矿(包括朱砂红、铜厂和富家坞)、金山金矿、银山Pb—Zn—Ag多金属矿和蛤蟆金矿等。这些矿床可以划分为与剪切带有关的金矿和与岩浆热液成矿作用有关的铜金钼铅锌银矿床(如德兴斑岩Cu—Mo—Au矿床和银山Pb—Zn—Ag—Cu—Au矿床)。在控矿构造、成矿元素组合、成矿流体来源、矿床地球化学等方面这两类矿床都有明显的差异;二者成矿年龄的差异显示它们是不同地质时期演化的结果。剪切带型金矿(如金山金矿)与斑岩铜矿(德兴铜矿)在成因上没有明显的直接关系,它们非单一同一岩浆系统的产物。更多还原

【Abstract】 The Dexing area, north-eastern Jiangxi province, China, is an important Cu—Au—Pb—Zn—Ag metals concentrating area. In this area, there are large scale Dexing porphyry copper orefield (includes Zhushahong, Tongchang and Fujiawu deposit etc.), shear zone-related Jinshan gold deposit and subvolcanic-related Yinshan Pb—Zn—Ag polymetallic deposit. These deposits can be divided into two types: shear zone host deposits and the magmatic—hydrothermal related deposits. These two types of deposits have different characteristics on the ore-controlling structures, ore forming elements assemblages, and the origin of ore forming fluids as well as the deposit geochemistry. It is suggested that these two types of deposits have no clear relations on genesis. The difference in ages indicates that they are formed in different stages of geological evolution. The shear zone-hosted gold deposit was formed during the Neoproterozoic collision between Huaiyu terrane and Jiuling terrane, the matmatic—hydrothermal related deposits were the results of Jurassic subduction of Pacific plate. They are not the results of single magmatic—hydrothermal system.更多还原