Crossword Genius

Delta material (4)

Ross

I believe the answer is:

silt

'delta material' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for silt that I've seen before include "Material deposited by a river" , "Sedimentary deposit" , "Mud deposit in a river" , "Jamboree" , "Fine deposited material" .)

I've seen this clue in the Newsday, the Universal, the Wall Street Journal and the Newsday.com.
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