By What is the definition of a stratified drift?
Well‐sorted layers of sand and gravel that have been deposited by glacial meltwater. From: stratified drift in A Dictionary of Environment and Conservation » Subjects: Science and technology — Environmental Science.
What is aquifer use?
Much of the water we use for domestic, industrial, or agricultural purposes is groundwater. Most groundwater, including a significant amount of our drinking water, comes from aquifers. In order to access this water, a well must be created by drilling a hole that reaches the aquifer.
What does stratified stand for?
: arranged or formed in layers. : divided into social classes.
What is the meaning of striation?
1a : the fact or state of being striated. b : arrangement of striations or striae. 2 : a minute groove, scratch, or channel especially when one of a parallel series. 3 : any of the alternate dark and light cross bands of a myofibril of striated muscle.
What is a striation in anatomy?
Medical Definition of striated muscle : muscle tissue that is marked by transverse dark and light bands, that is made up of elongated fibers, and that includes skeletal and usually cardiac muscle of vertebrates and most muscle of arthropods — compare smooth muscle, voluntary muscle.
What causes striation?
The striations are caused by the regular arrangement of contractile proteins (actin and myosin). Actin is a globular contractile protein that interacts with myosin for muscle contraction. Skeletal muscle also has multiple nuclei present in a single cell.
What are the properties of a good aquifer?
Aquifers are essentially porous media and so the properties relate to the properties of porous media:
How did the stratified drift aquifer form?
Stratified-Drift Aquifers Stratified-drift aquifers consist primarily of sand and gravel deposits that were deposited in layers by meltwater streams flowing from the retreating glacial ice. This aquifer type was formed primarily in valleys in the northern parts of the study area, and is of limited extent (fig. 2).
What do you need to know about Stratified Drift?
Stratified Drift – All you need to know about GLACIERS! Melting occurs in a glacier mainly during the summer months. Streams of meltwater flow from the edges, the surface, and beneath the glacier. Glacier melt water contains very fine rock particles that were ground into fine powder by glacial erosion.
Is the outwash plain a deposit of Stratified Drift?
An outwash plain is a deposit of stratified drift, which usually lies in front of a terminal moraine and is crossed by many meltwater streams.
How are aquifers held up in the ground?
Aquifer. An aquifer is an underground layer of rock that holds groundwater. Groundwater is rain or melted snow that has seep ed into the ground and is held there. Aquifers are filled slowly. For this reason, aquifers can dry up when people drain them faster than they can be refilled—a process called aquifer depletion.