上海地区第四承压含水层沉积环境及结构特征

Sedimentary Environments and Structure Characteristics of the 4th Confined Aquifer in Shanghai Area

上海地区第四承压含水层是地下水开发利用的主要层次,对其沉积环境、成因、结构特征进行深入研究有利于更好地开展地下水资源开发利用及地质环境保护工作。本文在对上海地区大量钻孔资料深入分析的基础上,对第四承压含水层形成时期即早更新世中、晚期沉积环境及含水层的成因进行了深入剖析,对含水层结构特征进行了详细刻画,为三维地质结构的建立奠定了基础。

As the most important aquifer for groundwater exploitation in Shanghai area, the 4th confined aquifer deserves a systematic sedimentary research, for better utilization of groundwater and protection of geological environment. With a purpose of providing new insights into the establishment of 3 -D geological structure, this paper studied the sedimentary environments, forming causes and structures of the 4th aquifer, which was formed during middle to late Early Pleistocene, based on in - depth analyses of an amount of boreholes in Shanghai