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An oxbow lake is a U-shaped lake or pool that forms when a wide meander of a river is cut off, creating a free-standing body of water. The word "oxbow" can also refer to a U-shaped bend in a river or stream, whether or not it is cut off from the main stream. [1] [2] It takes its name from an oxbow which is part of a harness for oxen to pull a ...
When either of these meander cutoff processes takes place a bend of the river is left behind forming, in many instances, an oxbow lake. An oxbow lake forms after there has been deposition of sediment , by the new cutoff channel flowing adjacent to it, at the entrances of the abandoned bend; this seals the bend off from the rest of the river.
Typically, cutoffs were created by digging a channel across a peninsula, leaving the bypassed bend to form an oxbow lake. Tunica Lake was created when the "Hardin Cutoff" was constructed across "Hardin Point" peninsula in 1942. It was the last cutoff constructed during that period. [2]
Aerial photo map of False River. False River (French: Lac False River) is an oxbow lake located in southeastern Pointe Coupee Parish, Louisiana centered at This lake was once the main channel of the Mississippi River in this area, but was cut off in about 1722 when seasonal flooding cut a shorter channel to the east.
A meander cutoff, also known as either a cutoff meander or abandoned meander, is a meander that has been abandoned by its stream after the formation of a neck cutoff. A lake that occupies a cutoff meander is known as an oxbow lake. Cutoff meanders that have cut downward into the underlying bedrock are known in general as incised cutoff meanders ...
Definitions vary. A billabong is often defined as an oxbow lake, an isolated crescentic pond left behind after a river loop is cut off when the river channel changes course. [7] Merriam-Webster defines the word as: "1.
Meander scars, oxbow lakes and abandoned meanders in the broad flood plain of the Rio Negro, Argentina. 2010 astronaut photo from ISS. A meander scar, occasionally meander scarp, [1] is a geological feature formed by the remnants of a meandering water channel. They are characterized by "a crescentic cut in a bluff or valley wall, produced by ...
A resaca in Estero Llano Grande State Park. Resaca is the name given to a type of oxbow lake in the southern half of Cameron County, Texas. [1] The resacas constitute former channels of the Rio Grande and are naturally cut off from the river, having no inlet or outlet.