Hi would somebody be able to check I have this for the formation of a delta correct please.
Deltas are created when the river meets the sea, and the rate of deposition is higher than the rate the material is been removed by the sea.This causes a sudden decrease in energy of the river, meaning it deposits most of the sediment, creating a delta.
The delta is made up of 3 layers, the bottomset, foreset and topset. Each layer consists of sediment decreasing in size moving upwards from the bottom to the top as the coarse material is deposited first as it has the greatest mass. Also the fine materials are transported slightly further than the heavier material, making the bottomset layer longer. Clay is also deposited at the bottomset layer, as flocculation occurs where clay and salt particles clump together, causing an increase in mass and so they are deposited
Formation of a delta
|Four hours left to win £100 of Amazon vouchers!! Don't miss out! Take our short survey to enter||24-10-2016|