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Related to alluvial deposit: fluvial deposit
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|Noun||1.||alluvial deposit - clay or silt or gravel carried by rushing streams and deposited where the stream slows down|
delta - a low triangular area of alluvial deposits where a river divides before entering a larger body of water; "the Mississippi River delta"; "the Nile delta"
placer - an alluvial deposit that contains particles of some valuable mineral
alluvial soil - a fine-grained fertile soil deposited by water flowing over flood plains or in river beds
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