Aquifer - Wikipedia
A confined aquifer has an overlying impermeable barrier that prevents the water level in the aquifer from rising any higher. An aquifer in the same geologic unit may be confined in one area and unconfined …
Texas Aquifers | Texas Water Development Board
The surface extent, or outcrop, of each aquifer is the area in which the host formations are exposed at the land surface. This area corresponds to the principal recharge zone for the aquifers.
Aquifers and Groundwater | U.S. Geological Survey
Oct 16, 2019 · After entering an aquifer, water moves slowly toward lower lying places and eventually is discharged from the aquifer from springs, seeps into streams, or is withdrawn from the ground by wells.
What Are Aquifers? Understanding Their Vital Role in River Systems ...
May 13, 2025 · What Does an Aquifer Really Look Like? Aquifers are underground water-bearing formations that store and transport groundwater. Rain, snowmelt, and surface water slowly seep …
Aquifers - National Geographic Society
Oct 19, 2023 · An aquifer is a body of rock and/or sediment that holds groundwater. Groundwater is the word used to describe precipitation that has infiltrated the soil beyond the surface and collected in …
What Are Aquifers? - Definition, Formation Process, and Types
Jan 27, 2025 · An aquifer is a vital underground geological formation that stores and transmits groundwater. The term derives from Latin, combining " aqua " (water) and " fero " (to carry), reflecting …
Aquifers Explained: Definition, Types, Importance and Conservation
Dec 21, 2024 · The largest aquifer in the world is the Great Artesian Basin located in Australia. This basin spans an area of 1.7 million square kilometers, which is approximately one-fourth of the entire …
What is an Aquifer? - Alabama Cooperative Extension System
Jun 15, 2021 · How easily water can flow through an aquifer also determines its ability to provide water to a well. Many rock formations are fractured, and large amounts of water can be contained in those …
Davis Researchers Win Renewed Support for Ogallala Aquifer ...
5 days ago · The work is part of the Ogallala Aquifer Program, a U.S. Department of Agriculture Agricultural Research Service-led, multi-university collaboration. The program targets practical …
What Is the Difference Between an Aquifer and an Aquitard?
Jan 10, 2026 · An aquifer is a saturated geological layer capable of storing and transmitting significant quantities of water to wells and springs. Aquifers are defined by high porosity and high permeability.