DS926 Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina -- Polygon regions of low permeability units forming the base of the Upper Floridan aquifer

Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system were developed to define an updated hydrogeologic framework as part of the U.S. Geological Survey Groundwater Resources Program. This feature class contains polygons depicting low permeability units used to define the base of the Upper Floridan aquifer.

作为美国地质调查局（U.S. Geological Survey）地下水资源计划（Groundwater Resources Program）的组成部分，本数据集针对佛罗里达含水层系统（Floridan aquifer system）中选定的水文地质单元（hydrogeologic units）的数字化界面与厚度开展构建工作，以建立一套更新后的水文地质框架。本要素类（feature class）包含用于表征上佛罗里达含水层（Upper Floridan aquifer）基底的低渗透单元（low permeability units）多边形要素。