Origin, Evolution and Mixing of Saline and Dilute Ground- waters in a Regional Flow System, Kansas and Missouri

不同来源的盐水和稀释的地下水汇合， 混合在密苏里州和堪萨斯两个并列的古生代含水层中。 建议进行研究，调查 控制了流动历史和地球化学演化 地下水在这个大规模的流动系统。 的处理 包括重力驱动的流动，流体混合和水岩 互动 这项检查将通过 对沃茨进行一系列化学和同位素分析 系统，包括主要和微量元素浓度，H，O， Sr、Nd、B、U、Th、Pb、Ra同位素组成及稀土元素 元素浓度。 进化的模型 将使用定量模型对地下水进行评估， 模拟迁移过程中的化学和同位素交换 地下流体 为该流动系统开发的模型为 预计将对各种 地质和环境问题，如盆地的成因， 卤水和铅锌矿床，放射性核素的迁移， 地壳中的微量金属和碳氢化合物， 沉积物的成岩作用和水资源的管理。

Saline and dilute groundwaters of distinct origin converge and mix in two juxtaposed Paleozoic aquifers in Missouri and Kansas. Research is proposed that will investigate the processes that control the flow history and geochemical evolution of groundwaters in this large-scale flow system. Processes to be examined include gravity-driven flow, fluid mixing and water-rock interaction. This examination will be accomplished through the analysis of the waters for a range of chemical and isotopic systems, including major and trace element concentrations, H, O, Sr, Nd, B, U, Th, Pb and Ra isotope compositions, and rare earth element concentrations. Models for the evolution of the groundwaters will be evaluated using quantitative models that simulate chemical and isotopic exchange during the migration of subsurface fluids. The models developed for this flow system are expected to have significant implications for a variety of geologic and environmental issues, such as the origin of basinal brines and Pb-Zn ore deposits, the transport of radionuclides, trace metals and hydrocarbons in the Earth's crust, the diagenesis of sediments and the management of water resources.