Three Dimensional Paleohydrogeology of the Midcontinent, USA

美国中部大陆的沉积盆地包括 重要的石油储藏和铅，锌， 重晶石和氟石似乎与 深层地下水和碳氢化合物的迁移超过100年， 公里 地质和地球化学数据丰富， 因此它们几乎是 深层地下水流的约束理论模型， 石油在地质时间和距离上的迁移。 一个新 将构建三维有限元模型， 将耦合的深层地下水流和热量输送量化为 时间的功能。 然后将该模型应用于以下研究 两个具体的区域问题：（1）奥扎克的成矿作用 密苏里州东南部的穹丘和（2）阿纳达科河的石油运移 位于俄克拉荷马州和堪萨斯的盆地。 三维的影响 在区域尺度上， 也可以用荚花趋势的详细模型进行研究， 密苏里州东南部的旧铅带。 成矿地球化学理论- 溶液传输和沉积将用反应路径测试 计算耦合到地下水流系统。 的 这项工作代表了描述真实三人的第一次努力- 流域尺度地下水流动的尺度效应 因此，它应该开创新一代的思想， 在地下水地质作用研究中的应用 流程.

Sedimentary basins of the United States Midcontinent contain significant petroleum reservoirs and ore deposits of lead, zinc, barite, and fluorite which appear to have origins related to the migration of deep groundwater and hydrocarbons over 100's of kilometers. Geological and geochemical data are abundant for these sedimentary basins and so they are nearly perfect candidates for constraining theoretical models for deep groundwater flow and petroleum migration over geological time and distances. A new three-dimensional finite-element model will be constructed to quantify coupled deep groundwater flow and heat transport as a function of time. This model will then be applied to studies of two specific regional problems: (1) Ore formation on the Ozark Dome of southeast Missouri and (2) Oil migration in the Anadarko Basin of Oklahoma and Kansas. The effects of three-dimensional flow and transport on ore formation a t the district-scale will also be investigated with detailed models of the Viburnum Trend and Old Lead Belt in southeast Missouri. Geochemical theories for ore- solution transport and deposition will be tested with reaction-path calculations which are coupled to the groundwater flow system. The work represents the first effort in characterizing true three- dimensional effects of groundwater plaeoflow at the basin scale and as such it ought to pioneer a new generation of ideas and applications in studies of the role of groundwater in geologic processes.