对公婆泉盆地铀成矿水文地球化学条件的认识

Hydrogeochemical conditions for uranium ore-formation in Gongpoquan basin

通过对公婆泉盆地地质、水动力、水文地球化学条件的分析和地球化学模式计算 ,确定了盆地下白垩统层间水水化学类型主要为SO4 ·Cl Na型或Cl·SO4 Na型 ;水中铀存在形式以UO2(CO3) 4- 3占优势 ;盆地内存在有利于铀还原沉淀的水文地球化学环境的可能性。

Based on the analysis on geologic,hydrodynamic and hydrochemical conditions of Gongpoquan basin,and the calculation of the geochemical model,it is determined that interstratal water in Lower Cretaceous is mainly of SO 4 Cl Na type,and uranium basically exists in the form of UO 2(CO 3) 4- 3,and there exist favorable hydrogeochemical environments for uranium reduction and perspective areas meeting the uranium precipitation conditions in the basin.