鄂尔多斯白垩系环河含水岩组中的地球化学反向模拟

Geochemical inverse simulation of Huanhe water-bearing layers in Ordos Cretaceous Basin

在了解鄂尔多斯盆地的地形、地势、地貌、新构造运动、岩石类型、岩性构造和其他特征的基础上,运用化学热力学原理、质量作用定律和质量守恒定律,用反向模拟的方法对白垩系环河组地下水进行了水-岩作用的地球化学模拟。对该区地下水的演化过程进行了定量的分析研究,揭示了其水化学场的形成机理,总结了矿物的溶解沉淀规律,为该区水文地质模型的建立、地下水资源的水质水量评价及其合理开发利用和科学管理提供了科学依据,可供该地区水土流失等地质灾害的预防和综合治理参考。

Based on the understanding of Ordos Basin ＇ s topography, landform, physiognomy, neotectonics, rock type, lithology and other characters ,the chemistry, thermodynamics, mass action law and mass conservation law were used to simulate inversely the water-rock interaction of groundwater in Ordos Cretaceous Basin. Quantitative analysis of the local groundwater evolution were carried out, which has disclosed formative mechanism of hydrochemical field and summarized the law of mineral solution/precipitation. And all these give an scientific reference to establishment of hydrological model and quality/quantlty evaluation, reasonable development/utilization and scientific management of underground resources.