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  1. Aquifer - Wikipedia

    Typically (but not always) the shallowest aquifer at a given location is unconfined, meaning it does not have a confining layer (an aquitard or aquiclude) between it and the surface. The term …

  2. Aquifer - Welcome

    Aquifer is a dynamic virtual teaching and learning solution that helps students master the foundational knowledge and clinical reasoning needed for patient care and high-stakes exams.

  3. 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 …

  4. Aquifer | Types & Facts | Britannica

    Nov 14, 2025 · Aquifer, in hydrology, rock layer that contains water and releases it in appreciable amounts. The rock contains water-filled pore spaces, and, when the spaces are connected, …

  5. Aquifers and Groundwater | U.S. Geological Survey

    Oct 16, 2019 · When a water-bearing rock readily transmits water to wells and springs, it is called an aquifer. Wells can be drilled into the aquifers and water can be pumped out. Precipitation …

  6. Aquifers Explained: Definition, Types, Importance and Conservation

    Dec 21, 2024 · Aquifers are one of the most important elements in the Earth’s hydrological cycle and are natural reservoirs that store and transport groundwater. These groundwater resources …

  7. 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), …

  8. What Are Aquifers? Understanding Their Vital Role in River …

    May 13, 2025 · Aquifers are underground water-bearing formations that store and transport groundwater. Rain, snowmelt, and surface water slowly seep down through the soil, …

  9. What is an Aquifer? - Alabama Cooperative Extension System

    Jun 15, 2021 · Aquifers are rarely underground lakes or rivers as people might think. The vast majority of groundwater is found between grains in rocks, soil, and sediment. How easily water …

  10. Aquifers | Research Starters - EBSCO

    Mar 6, 2025 · Aquifers are geological formations capable of storing and transmitting water, providing a crucial source of groundwater for approximately 50% of the U.S. population.