湖南省热液硅化成矿作用与找矿

根据成矿作用与热液硅化极为密切的锡矿山锑矿床、康家湾铅锌金矿床、磺厂雄磺矿床和320铀矿床的地质特征,对热液硅化、角砾化、矿质沉淀和矿床剖面结构的形成机理进行了讨论,认为这类矿床属于浅成热液类型矿床或热泉型矿床,进而认为对司空见惯的硅化带的找矿意义要重新认识,由此提出了寻找这种类型矿床的地质、地球化学、地球物理的找矿标志。

METALLOGENESIS RELATED TO HYDROTHERMAL SILICIFICATION IN HUNAN AND PROSPECTING

Based on the geological feature of Xikuanshan antimony deposit, Kangjiawan lead-zinc-gold deposit, Huangchang realgar deposit and 320 uranium deposit, of which the metallogenses are closely related to hydrothermal silicification, a discussion is condtcted on the formation mechanism of the hydrothermal silicification, brecciation, ore material deposition and the section pattern of the deposits, which leads the author to believe that these deposits belong to epithermal type or hot spring ones, and then makes the author to consider that the prospecting significance of the commonly-occurred silicified geologic bodies should be re-evaluated, and hence some geologic, geochemical, and geophysical criteria are put forward in order to help finding such deposits.