When a rock particle (loosened by one of the two weathering processes) is moved by some flowing agent such as air, water or ice the process is called erosion.
Rivers and Streams
Sand, gravel, and silt deposited by rivers and streams in a valley bottom.
A fan-shaped pile of sediment that forms where a rapidly flowing mountain stream enters a relatively flat valley. As water slows down, it deposits sediment (alluvium) that gradually builds a fan.
Coastal and Shorline Processes
WindAeolian is the technical term for wind-driven erosion and transportation, wind-blown sediment (such as sand and silt), and wind generated deposits (such as sand dunes).
Last updated: September 9, 2019