What is Aquifer, Aquiclude, Aquitard and Aquifuge?
网页2019年11月15日 · Aquifer, Aquiclude, Aquitard, and Aquifuge are geological formations, classified based on their water storage and water carrying capacity. Aquitard is a geological formation of poor permeability, but through which seepage is possible and hence it won’t yield water freely to wells.
Aquitard - an overview | ScienceDirect Topics
网页An aquitard is any geological formation of a rather semipervious nature that transmits water at slower rates than an aquifer. Freeze and Cherry (1979) describe an aquitard as the less-permeable beds in a stratigraphic sequence.
Understanding Aquitards and Aquicludes - UNSW Sites
网页Aquitards, by contrast, are compacted layers of clay, silt or rock that retard water flow underground; that is, they act as a barrier for groundwater. Aquitards separate aquifers and partially disconnect the flow of water underground. Also known as cap rocks, aquitards limit and direct the surface water which seeps down and replenishes aquifers.
Aquitard Definition & Meaning - Merriam-Webster
网页2002年11月14日 · The meaning of AQUITARD is a geologic formation or stratum that lies adjacent to an aquifer and that allows only a small amount of liquid to pass. How to use aquitard in a sentence.
4 Different Types of Geological Formations of Groundwater
网页An aquifer is a saturated formation of the earth. It not only stores the water but also yields it in adequate quantity. Aquifers are highly permeable formations and hence they are considered as main sources of groundwater applications. Unconsolidated deposits of sand and gravel are examples of an aquifer.
Aquifer - Wikipedia
网页An aquitard is a zone within the Earth that restricts the flow of groundwater from one aquifer to another. An aquitard can sometimes, if completely impermeable, be called an aquiclude or aquifuge. Aquitards are composed of layers of either clay or non-porous rock with low hydraulic conductivity.
Aquifers and Aquitards » Geology Science
网页2023年4月23日 · An aquifer is a porous, water-bearing rock formation, while an aquitard is a non-porous or low-permeability rock or sediment layer that restricts or prevents water movement. There are several types of aquifers based on the source and movement of water, such as unconfined aquifers, confined aquifers, and artesian aquifers.
5.3 Aquifers and Aquitards - The Groundwater Project
网页As noted previously, an aquitard is a semi-pervious formation that restricts flow between the overlying and/or underlying aquifers. It may be composed of very low hydraulic conductivity soil or rock that restricts nearly all groundwater flow between the aquifers.
Aquifers and Groundwater | U.S. Geological Survey - USGS.gov
网页2019年10月16日 · A huge amount of water exists in the ground below your feet, and people all over the world make great use of it. But it is only found in usable quantities in certain places underground — aquifers. Read on to understand the concepts of aquifers and how water exists in the ground.
14.1: Groundwater and Aquifers - Geosciences LibreTexts
网页2024年4月24日 · An aquitard is a body that does not allow transmission of a significant amount of water, such as a clay, a till, or a poorly fractured igneous or metamorphic rock. These are relative terms, not absolute, and are usually defined based on someone’s desire to pump groundwater; what is an aquifer to someone who does not need a lot of water, …