本文总结了阿萨巴斯卡盆地南部铀矿床的稳定和放射性同位素以及包裹体测定结果。认为该盆地有一个长期的流体活动史。早期为高盐度的成岩流体,温度约为200℃,其活动时代为1 477—957Ma。铀成矿作用与该流体活动事件密切相关。晚期为大气降水沿断裂带渗入,其温度约为100℃,活动时代为800—nMa。晚期流体活动使铀发生再活化,但主要是破坏原先形成的矿床, This paper summarizes the stability and radioisotopes of uranium deposits in the southern Athabasca Basin and the results of their inclusion measurements. The basin is thought to have a long history of fluid activity. Early high salinity diagenetic fluid, the temperature is about 200 ℃, the active age of 1477-957Ma. Uranium mineralization is closely related to the fluid activity. In the late period, the rainfall infiltrated along the fault zone, with a temperature of about 100 ℃ and an active age of 800-nMa. Late fluid reactivation of uranium occurred, but mainly to destroy the original deposit,