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在西澳大利亚州伊利里铀矿床现代潜水面之上所采集的矿石样品中,~(234)U/~(238)U和~(230)Th/~(234)U比值的加权平均值分别为1.38±0.10和0.83±0.28。后一个比值的相对变化较大。这是铀沉淀之后发生位移的证据。子元素的分离是由于钍和铀的迁移能力不同。为了解释矿床形成的动力学过程,从开放系统模式的角度评价了与解释这些所观测到的比值有关的因素。所观测到的非平衡态,为对从地质上及其它方面提出的假说作出定量的评价打下了基础。
The weighted average values of ~ (234) U / ~ (238) U and ~ (230) Th / ~ (234) U ratios in the ore samples collected above the modern diving surface of the Illy uranium deposit in Western Australia are 1.38 ± 0.10 and 0.83 ± 0.28. The latter ratio changes relatively large. This is evidence of displacement after uranium precipitation. The separation of sub-elements is due to the different migration capacities of thorium and uranium. In order to explain the dynamics of deposit formation, the factors associated with interpreting these observed ratios were evaluated from an open system model perspective. The observed non-equilibrium states provide the basis for a quantitative assessment of the hypothesis that is geologically and otherwise presented.