· Alluvial fans develop where streams issue from canyons onto adjacent valley floors and deposit sediments derived through the erosion of rocks upstream.
· Alluvial fans develop where streams issue from canyons onto adjacent valley floors and deposit sediments derived through the erosion of rocks upstream.
An alluvial is sediment deposited at the mouth of a stream. An alluvial fan is when that sediment creates an arching fan shape when it is deposited. The fan shape is created when the stream's slope...