阳新县阮家湾钨铜钼金矿床成矿作用及找矿方向

Mineralization and Prospecting Direction of Ruanjiawan W-Cu-Mo-Au Deposit

阮家湾钨铜钼金矿床位于阳新岩体东南缘,围绕阮家湾岩体分布,其成矿与岩浆活动密切相关。在前人研究成果的基础上,对矿床成因及成矿作用进行总结,该矿床是典型的岩浆期后高—低温热液复合型矿床,根据侵入围岩的不同形成不同类型的矿化,在岩体与碳酸盐岩接触部位形成矽卡岩型矿床,在岩体与砂页岩接触部位形成斑岩型矿床,在岩体内部蚀变部位形成热液型矿床。根据近年来的勘查和研究成果,认为阮家湾矿区东南和西南部是区内下一步找矿重点。

Ruanjiawan W-Cu-Mo-Au deposit is located in the southeastern margin of Yangxin intrusion and distributed around Ruanjiawan pluton.Its mineralization is closely related to magmatic activities.On the basis of previous research results,this paper summarizes the genesis and mineralization of the deposit.It is a typical post magmatic high-low-temperature hydrothermal compound deposit.According to the different intrusive country rocks,different types of mineralization are formed.Skarn type deposits are formed at the contact between rock mass and carbonate rock.Porphyry deposits are formed in the contact between rock mass and sand shale,and hydrothermal deposits are formed in the altered parts of rock mass.According to the results of exploration and research in recent years,it is considered that the southeast and southwest of Ruanjiawan mining area are the next prospecting focus.