#sediment__deposit  matter deposited by water or ice or wind
  supertype:  substance__matter  that which has mass and occupies space; "an atom is the smallest indivisible unit of matter"
  subtype:  alluvial_sediment__alluvial_deposit__alluvium__alluvion  clay or slit or gravel carried by rushing streams and deposited where the stream slows down
     subtype:  placer  an alluvial deposit that contains particles of some valuable mineral
  subtype:  dregs__dreg__grounds__settlings__settling  sediment that has settled at the bottom of a liquid
     subtype:  coffee_grounds  the dregs remaining after brewing coffee
  subtype:  lees  the sediment from fermentation of an alcoholic beverage
  subtype:  salt_lick__lick  a salt deposit that animals regularly lick
  subtype:  evaporite  the sediment that is left after the evaporation of seawater

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