鄂尔多斯盆地白垩系含水层沉积学初探
Sedimentology of Cretaceous aquifers in the Ordos basin
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摘要: “含水层沉积学”是沉积学、水文地质学、油气储层地质学、地球化学等相互交叉综合的产物，是以沉积学、水文地质学理论为基础，以沉积含水层为主要研究对象，以查明地下水赋存和循环条件、地下水系统结构特征、地下水水质成因与分布以及地下水富集规律为主要研究内容，最终服务于地下水资源勘查评价的一门边缘分支学科。含水层沉积学及水文地质综合研究表明，受到沉积相类型及其空间展布的明显控制，鄂尔多斯盆地白垩系地下水赋存、循环、富集条件以及地下水水质分布总体具有北好南差、盆地南部具有下好上差的宏观规律。Abstract: Aquifer sedimentology" is a product of crossing and integration of sedimentology, hydrogeology, petroleum accumulation geology and geochemistry and a borderline subdiscipline that is based on sedimentological and hydrogeological theories, with sedimentary aquifers as its object of research, and mainly deals with studies of conditions of groundwater occurrence and circulation, structural characteristics of groundwater systems, quality, origin and distribution of groundwater and regularities of groundwater concentration and finally serves groundwater exploration and assessment. Integrated study of aquifer sedimentology and hydrogeology indicates that under the distinct control of the types and spatial distribution of sedimentary facies the occurrence, circulation and concentration conditions and water quality distribution of Cretaceous groundwater in the Ordos basin are good in the north and poor in the south and good in the lower part and poor in the upper part for the southern part of the basin.
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