strong accretion is the Delta of the Red River Delta, Mixixipi, Mekong River. The composition is mostly sand alternating with degeneration of the thin layer of clay mud.Destroying the Delta heavy:As for the destruction of the strong, the volume of material deposited by the river carries out no compensation was reclaimed from the sea process. Turn the reclaimed gradually destroyed the Delta system was created. Waves and tides are the two basic elements of destruction. Due to strong waves destroyed the Delta, River deposits mainly sand. Sometimes formed coastal sand Dyke rivers due to the sediment material has been erosion (the mouth of the River in Central Vietnam)
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