- Cut bank
A cut bank, also known as a river cliff, is an erosional feature of streams. Cut banks are found in abundance along mature or meandering streams, they are located on the outside of a stream bend, known as a meander. They are shaped much like a small cliff, and are formed by the erosion of soil as the stream collides with the river bank. As opposed to a point bar which is an area of deposition, a cut bank is an area of erosion.
Typically, cut banks are nearly vertical and often expose the roots of nearby plant life. Often, particularly during periods of high rainfall and higher-than average water levels, trees and poorly placed buildings can fall into the stream due to mass wasting events. Given enough time, the combination of erosion along cut banks and deposition along point bars can lead to the formation of an oxbow lake.
Not only are cut banks steep and unstable, they are also the area of a stream where the water is flowing the fastest and the deepest, making them rather dangerous. Geologically speaking, this is known as an area of high-energy.
Material eroded here is deposited downstream in point bars.
- Tarbuck, E. J. and F. K. Lutgens. Earth, 7th Edition. Prentice Hall: Upper Saddle River, New Jersey, 2002. pp. 279, 286.
- Photo illustration of a cut bank
River morphology Large-scale features Alluvial rivers Bedrock river Bedforms Regional processes Mechanics
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Cut Bank — Cut Bank, MT U.S. city in Montana Population (2000): 3105 Housing Units (2000): 1492 Land area (2000): 0.983623 sq. miles (2.547572 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.983623 sq. miles (2.547572 sq … StarDict's U.S. Gazetteer Places
Cut Bank, MT — U.S. city in Montana Population (2000): 3105 Housing Units (2000): 1492 Land area (2000): 0.983623 sq. miles (2.547572 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.983623 sq. miles (2.547572 sq. km) FIPS… … StarDict's U.S. Gazetteer Places
cut|bank — «KUHT BANGK», noun. the steep, overhanging, concave wall of a stream having a meandering course … Useful english dictionary
Cut Bank — 48° 38′ 05″ N 112° 19′ 52″ W / 48.634722, 112.331111 … Wikipédia en Français
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