Explain the accurrence of river gravels indicated in river capture
River capture occurs when one river is diverted into another river, typically due to erosion and changes in topography. This can result in the deposition of river gravels, which are sediments composed of various sizes of rocks and stones that have been transported by the flowing water.
When a river is captured, the sudden change in flow direction can cause the deposition of these gravels along the new course of the river. Additionally, the increased energy and velocity of the water in the captured river can also lead to the erosion and transportation of gravels downstream.
Overall, the occurrence of river gravels in river capture processes is a result of the dynamic nature of river systems and the constant movement of sediments within them.