What is another word for alluvial fan?
Pronunciation: [ɐlˈuːvɪəl fˈan] (IPA) 
An alluvial fan is a fan-shaped deposit of sediment that forms at the base of a mountain or canyon, typically formed by a combination of water and gravity. It is also known as a fan delta or a cone-shaped deposit. Other synonyms for alluvial fan include debris cone, talus fan, alluvial delta, and alluvial cone. These terms refer to the same natural phenomenon that occurs when sediment-laden water flows down a steep slope and deposits the sediment as it slows down. All of these terms are used by geologists and environmental scientists to describe the same geological feature in different contexts.
