What is silt?



  1. 0 Votes

    Silt is sedimentary material with rock particles, usually 1/20mm in diameter or less, and is associated with deposits of sediments from rivers. Sediments are seldom composed entirely of silt but rather are a mixture of clay, silt, and sand. Silt deposits formed by wind are known as loess, a yellow, unconsolidated rock. Clay-rich silt is called shale.

  2. 0 Votes

    Silt is a fine sand that is deposited as sediment by running water. Erosion can create the silt, which works its way downstream.

  3. 0 Votes

    Silt, also known as rock flour or stone dust, is a material that is approximately between the size of a grain of sand and a grain of clay. Silt is created by a number of physical processes including chemical weathering of rocks, frost shattering, haloclasty, and, most commonly, abrasion. Silt is usually primarily composed of quartz and feldspar.

    Silt is often transported to different areas through either water or air (when it is small enough to be carried as dust). It was silt deposited by floods on the Nile that allowed the Ancient Egyptians to farm in the arid climate.

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