摘要
基于呼和浩特盆地453个钻孔资料,借助新增钻探和物探工作,利用Mapgis的空间分析功能,查明了呼和浩特盆地淤泥质粘土层的分布范围、厚度、顶板埋深等空间分布特征,并分析了呼和浩特淤泥质粘土层反映的古地理沉积环境;粘土层信息指示的地质演化过程;粘土层在含水系统划分中的作用以及对越流的控制作用。结果表明:研究区在中更新世晚期处于较湿-干湿气候条件下湖相沉积环境;淤泥质粘土层信息可指示大黑河古河道的位置和当初流向;研究区含水系统划分为山前单层结构含水系统和平原区双层结构含水系统;淤泥质粘土层砂粘比较高,有助于相邻含水层之间产生越流。
Based on the borehole data of more than 450 boreholes, the methods of geophysical prospecting and drilling and Mapgis special analysis were used to study the silt layer spatial distribution characteristics in Hohhot Basin. The investigation results included the silt layer distribution area, thickness and the depth of the impermeable roof. The results were used to analyze-the aquifer division, paleogeographic and sedimentary environment, geological evolution and the existence determination of leaky. These study results have great significance in the research of the hydrological and geological in Hohhot Basin.
作者
张永央
王文中
李晓媛
于娟
梅杨
ZHANG Yongyang;WANG Wenzhong;LI Xiaoyuan;YU Juan;MEI Yang(Henan Water Conservancy Survey LTD.,Zhengzhou 450003;Institute of hydrogeology and Environmental Geology,Chinese Academy of Geosciences,Shijiazhuang 050061;Key laboratory of Groundwater Sciences and Engineering,Ministry of Natural Resources,Shijiazhuang 050061,China)
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2020年第9期102-107,共6页
Journal of Arid Land Resources and Environment
基金
中国地质科学院基本科研业务费(SK202005,SK202009)资助。
关键词
淤泥质粘土层
空间分布特征
含水层
沉积环境
地质演化
silt layer
special distribution characteristics
aquifer
sedimentary environment
geological evolution
