A(n)____________ is a wedge of sand and gravel deposited by the distributary channels that arise when an ephemeral stream reaches a plain at the base of a slope.

Question

Quizplus · Accepted Answer

An alluvial fan is a wedge-shaped deposit of sediment that occurs when an ephemeral stream or river empties onto a flat, low-lying plain at the base of a slope. The sediment is typically made up of sand, gravel, and smaller particles that are carried by the water and deposited as the flow slows down. Alluvial fans can be found in arid or semi-arid regions around the world.

A(n)____________ Is a Wedge of Sand and Gravel Deposited by the Distributary