Table of Contents
What are permeable rock layers or sediments that freely transmit groundwater?
A permeable rock layer that transmits water freely is referred to as an aquifer.
Which of the following terms describes the ability of rock to transmit groundwater?
Permeability refers to the ability of a material to transmit a fluid through it.
What kind of rocks work well as aquifers?
Aquifers must be both permeable and porous and include such rock types as sandstone, conglomerate, fractured limestone and unconsolidated sand and gravel. Fractured volcanic rocks such as columnar basalts also make good aquifers.
Which of these are associated with areas of karst topography?
Karst is a type of landscape where the dissolving of the bedrock has created sinkholes, sinking streams, caves, springs, and other characteristic features. Karst is associated with soluble rock types such as limestone, marble, and gypsum
What are layers of permeable rock that transmits water freely called?
An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt). Groundwater from aquifers can be extracted using a water well. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology.
Are there any rocks or sediments that water can’t pass through?
Deep in the bedrock there are rock layers made of dense material, such as granite, or material that water has a hard time penetrating, such as clay. These layers may be underneath the porous rock layers and, thus, act as a confining layer to retard the vertical movement of water.
Is groundwater found in pores of soil and rock?
Groundwater is fresh water (from rain or melting ice and snow) that soaks into the soil and is stored in the tiny spaces (pores) between rocks and particles of soil. Groundwater accounts for nearly 95 percent of the nation’s fresh water resources.
What is a rock called that does allow for groundwater flow?
An aquifer is a body of porous rock or sediment saturated with groundwater. Groundwater enters an aquifer as precipitation seeps through the soil. It can move through the aquifer and resurface through springs and wells.
What refers to the ability of a rock to transmit fluids?
Permeability: a measure of the ability of a material (such as rocks) to transmit fluids. Porosity and permeability are related properties of any rock or loose sediment.
What causes groundwater to be in rock?
Why is there groundwater? Nothing surprising here – gravity pulls water and everything else toward the center of the Earth. That means that water on the surface will try to seep into the ground below it. The rock below the Earth’s surface is the bedrock.
What is the ability of a material to transmit water?
Hydraulic conductivity is a physical property which measures the ability of the material to transmit fluid through pore spaces and fractures in the presence of an applied hydraulic gradient.
What kind of rocks make good aquifers?
Sandstone: Fine-grained rocks such as sandstone make good aquifers. They can hold water like a sponge, and with their tiny pores, they are good at filtering surface pollutants. Dolomite: This type of rock can easily be dissolved by slightly acidic water.
What 2 types of rock are needed to produce an aquifer?
Although most bedrock aquifers are within sedimentary rock, in some areas igneous or metamorphic rock can be important as aquifers. Much of the bedrock is also covered with tens to hundreds of metres of unconsolidated sediments (a.k.a. surficial deposits or drift).
What are aquifer rocks?
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, the water is able to flow through the matrix of the rock. An aquifer also may be called a water-bearing stratum, lens, or zone.
What are 3 features of karst topography?
Features of karst landscapes include caves, springs, disappearing streams, dry valleys, and sinkholes. Acidic groundwater moves through fractures and spaces within the rock, slowly dissolving and enlarging spaces to create larger openings and connected passages.
What are 4 landforms that are commonly found in areas of karst topography?
Caves, sinkholes, underground streams karst landforms can be spectacular and support unique ecosystems, which is why they need protection.
Which of the following are examples of karst topography?
The INITIAL stages of Karst Topography are: Sinkholes, potholes, and caverns. Natural void in Rock created by Solution large enough for people to enter.
What are the types of karst topography?
Karst is a type of topography that features landforms produced by the dissolution of soluble rocks like limestone, gypsum, and dolomite. Karst landscapes have extensive underground cave systems, subterranean rivers, sinkholes, etc.
