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A cone of debris deposited by running water at the mouth of a canyon in an arid area is known as an

Jodi Brooks

in Geography

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Jennifer Patterson on January 3, 2018

A cone of debris deposited by running water, in the mouth of a canyon in an arid area is known as an alluvial fanExplanation:An alluvial fan is a fan - or cone-shaped pile of sediment mixed and built by the current. If the fan is built up by debris flows it is properly named a cone of debris, or colluvial fan. The sediment left behind that forms the alluvial fan is called alluvium. The alluvial fans are created when water and sediment move within a narrow hollow between hills, mountains, or canyon walls, and then slows down and flattened, when waiver of an open plain.


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