Effect of Groundwater Radiolysis on the Wall—rock Alteration of Uranium Ore Deposits

Effect of Groundwater Radiolysis on the Wall—rock

Alteration of Uranium Ore Deposits

闵茂中;吴俊奇;等

【期刊名称】《中国地球化学学报：英文版》 【年(卷),期】1994(013)004

【摘要】Reported for the first time in this paper are the results of simulating experiments on the γ-irradiation-induced oxidation of Fe2+ under the physicochemical conditions(T=200℃，P=50MPa,Eh=-0.1V,pH=7.2)simial to those under which moderate-low temperature hydrothermal uranium deposits are formed.Evdence shows that the effect of groundwater radiolysis seems to be the major mechanism of wall-rock

alteration(hematitizaton)of

hydrothermal

uranium

deposits.Moreover,adiscussion was made of possible effects of radiolysis of the water-rock system on wall-rock alterations including argillization and decoloration of uranium ore deposits on the basis of the experimental results. 【总页数】8页(355-362)

【关键词】铀矿床;地表水;水岩反应;辐射作用 【作者】闵茂中;吴俊奇;等 【

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者

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位

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DepartmentofEartSciences,NanjingUniversity,Nanjing,210008;DepartmentofEartSciences,NanjingUniversity,