贵州团山堡含铀磷块岩矿床微量元素地球化学特征

Geochemical Characteristics of Trace Elements in Uranium-Bearing Phosphorite Deposits of Tuanshan Fort in Guizhou

贵州团山堡地区寒武系下统牛蹄塘组广泛分布,含铀磷块岩赋存于牛蹄塘组底部,矿层比较稳定,呈层状、似层状。含铀磷块岩中富含U、V、Ba、Y、As等多种微量元素,针对团山堡含铀磷块岩矿床中微量元素的关系,结合含矿岩性特征,分析矿床的形成环境。

The Cambrian Lower Niutitang Formation in the Tuanshan Fort area of Guizhou Province is widely distributed. The uranium-bearing phosphate rock hosts at the bottom of the Niutitang Formation. The ore layer is relatively stable with a layered or quasi-lamellar structure. The uranium-bearing phosphate lumps are rich in trace elements such as U,V,Ba,Y,As and so on. Based on the relationship between the trace elements in the Tanshanbao uranium-bearing phosphorite deposit and the ore-bearing lithology,the forming environment of the deposit is analyzed.