【摘要】 XSh铀矿田是一个典型的受破火山口控制的火山洼地型铀矿田.本文在前人工作所取得的丰富资料的基础上,经过野外和室内研究,对矿田内铀成矿的地球化学特征作了初步分析和总结.重点讨论铀的迁移形式和沉淀成矿机理.更多还原

【Abstract】 This paper describes the geologic general conditions and the fundamental character of uranium ore deposits in the xsh region On the bases of analyses of minerogenetic solutions containing HCO₃^-, F^-, SO₄²⁺, Cl^-, etc. and thermodynamic calculation, authors suggeste that the migration of uranium in the uraniferous hydrothermal system is mainly in the form of uranyl carbonate complex. Uranium is deposited by reduction with reducing agent（for example hydrogen sulfide or iron）.更多还原