Waterfalls

Waterfalls are usually formed when a river is young. At the moment the channel is often narrow and deep. When the course of the rivers on resistant bedrock, erosion occurs slowly, while downstream erosion occurs faster. As the stream velocity increases at the edge of the waterfall, which starts from the riverbed material. Eddies in the turbulence created as well as sand and stones carried by the increased capacity of the watercourse erosion. This makes the carving waterfall in bed and go back upstream. Often, the passage of time, the cataract will move away again to form a canyon or ravine downstream and upstream away, and are carved deeper into the song over it. The withdrawal rate for a waterfall can be up to a year and a half meters per year. 

Often, the rock stratum just below the more resistant shelf will be a milder type, which means that due to the undervaluation of overalls occur here to form a shallow cave formation known as a rock shelter under and behind the waterfall. Finally, the outcrop, more resistant cap rock will collapse under pressure to add blocks of rock to the base of the waterfall. These blocks of rock are arranged in small rocks for wear and bumping into each other, and also erode the base of the waterfall by abrasion, creating a deep pool or throat.