柴达木盆地大风山特大型天青石矿床锶的富集成矿机制研究

Strontium (Sr), as a rare metal, has become one of the important strategic mineral resources and been widely used due to its strong absorption function of X-ray radiation and unique physical and chemical property. Celestite is the major mineral for Sr. One celestite Sr deposit in Tsaidam Basin of Qinghai Province is currently the largest celestite deposit in China. Since 1980s, there have been several researchers doing studies on it, but there are still disagreements on its genesis. This project is aim to focus on the distribution of ore-bearing rocks, rare earth elements, trace elements, fluid inclusion and isotope studies, and aim to understand the mineralization mechanism of Sr enrichment in this super-large celestite deposit. This study is supposed to provide a guide for further understanding on genesis of this type deposits and for the prospecting the similar type deposits in Tsaidam Basin.

稀有金属锶由于有很强的吸收X-射线辐射功能和独特的物理化学性质而被广泛应用，是世界上重要的战略性矿产资源。天青石是目前提取锶的主要矿物原料。位于我国青海柴达木盆地的天青石矿床是我国规模最大的天青石矿床。自上世纪80年代，有不少学者对其进行研究，但其成矿物质来源及成矿机制存在争议。本项目将对该矿床矿体的分布特征、天青石矿石的矿石构造、矿石结构、微量元素、成矿流体包裹体特征及锶、硫、氢、氧同位素开展研究，探讨矿体水平分带和垂直分带特征和规律，着重阐明这个特大型天青石矿床的锶的来源及富集成矿机制，进而研究我国独具特色的陆相锶矿成矿规律。这一研究将对进一步认识我国该类型矿床成因和指导柴达木盆地同类型找矿具有重要指导意义。

稀有金属锶是世界上重要的战略性矿产资源,由于有很强的吸收X-射线辐射功能和独特的物理化学性质而被广泛应用。天青石是目前提取锶的主要矿物原料。位于我国青海柴达木盆地的天青石矿床是我国规模最大的天青石矿床。自上世纪80年代，有不少学者对其进行研究，但其成矿物质来源及成矿机制存在争议。本项目通过对该矿床矿体的分布特征、天青石矿石的矿石构造、矿石结构、微量元素及锶、硫、氢、氧同位素开展研究，探讨了矿体特征和规律，阐明了这个特大型天青石矿床的锶的来源及富集成矿机制，并通过开展遥感解译，进一步指明了找矿方向。这一研究将对进一步认识我国该类型矿床成因和指导柴达木盆地同类型找矿具有重要指导意义。