Final answer:
An oxbow lake is created when a meander from a river is cut off during a flood, leading to a new river course and abandonment of the meander, which then forms the oxbow lake.
Step-by-step explanation:
Formation of an Oxbow Lake
An oxbow lake is formed when a meander from a river is cut off and abandoned. This typically occurs during a flood event when high water levels allow the river to take a new, shorter course, cutting across the narrow neck of a meander. Over time, the meander becomes isolated from the flow of the river, forming an oxbow lake. It's a classic example of the dynamic nature of river systems and their landscapes.
Oxbow lakes can be identified by their characteristic U-shape and are often found on floodplains alongside rivers. They serve as important habitats for various species of wildlife and have unique ecological characteristics.
By understanding the formation of features like oxbow lakes, we gain insights into fl_uvial processes that shape the environment and influence ecosystems.