미국
DS926 Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina -- Extent of the low-permeable areas of the Floridan aquifer system in the Gulf Trough
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 low permeability areas of the Gulf Trough determined from well data provided by the Georgia Environmental Protection Division Agricultural Permitting Unit