Sentence Examples


  • Thus a fall in the gradient at any point in the course of a stream; any snag, projection or dam, impeding the current; the reduced velocity caused by the overflowing of streams in flood and the dissipation of their energy where they enter a lake or the sea, are all contributing causes to alluviation, or the deposition of streamborne sediment.
  • Or the stream by cutting into another stream (piracy), but cutting through a barrier near its head waters, by entering a region of looser or softer rock; and by glacial drainage, may form a flood plain simply by filling up its valley (alluviation only).
 
 

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