一个热水沉积锑矿床——以贵州晴隆大厂锑矿床为例

A kind of Hydrothermal Sedimentation Antimony Deposit-Taking the Dachang Antimony Deposit in Qinglong,Guizhou as the Example

笔者通过对晴隆大厂锑矿床实地调查研究,不仅发现辉锑矿在"大厂层"岩石压实、固结成岩阶段结晶低温热水沉积成因的直接标志,而且还对"大厂层"空间分布、垂向结构、组成特征、矿化阶段、形成环境和成矿时间等进行了初步研究,认为该矿床是中二叠世末期峨眉地幔柱活动早期局限海湾浅水环境低温热水域成岩成矿作用叠加而形成的热水沉积型锑矿床。

By the field study of the Daehang antimony deposit, it not only finds the sign of crystallization low temperature hydrothermal sedimentation of antimonite in the stage of rock welding and eonsoliciation diagenesis in the Daehang layer, and makes a primary study of the space distribution, vertical structure, formation character, rninerlization stage, form environment and mineralization time of Dazhang layer, thinks the ore deposit was the sedimentary antimony deposit formed by the stacking of diagene- sis and mineralization in the low - thermal water field in the adlittoral environment of restricted bay in the late Middle Permian and early Emei mantel plume movement.