Figure 9.18
Confined and unconfined aquifers. Rainwater moves into an unconfined aquifer directly from Earth’s surface. A confined aquifer is separated from the surface by a layer of impermeable rock or sediments (an aquiclude).Figure 9.18
Confined and unconfined aquifers. Rainwater moves into an unconfined aquifer directly from Earth’s surface. A confined aquifer is separated from the surface by a layer of impermeable rock or sediments (an aquiclude).