Deltas

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  • Created by: tul
  • Created on: 01-12-15 13:50
What is a delta?
A delta is a feature of deposition, located at the mouth of the river as it enters a sea or a lake. Deposition occurs as the velocity and sediment-carrying capacity of the river decrease on entering a lake or sea
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Deltas for only when....
the rate of deposition exceeds the rate of sediment removal.
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Topset beds
The larger and heavier particles are the first to be deposited as the river loses its energy.
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Foreset beds
Medium graded particles travel a little further before they are deposited as steep-angled wedges.
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Bottomset beds
The very finest particles travel furthest into the lake before deposition and form the bottomset beds.
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Other cards in this set

Card 2

Front

Deltas for only when....

Back

the rate of deposition exceeds the rate of sediment removal.

Card 3

Front

Topset beds

Back

Preview of the front of card 3

Card 4

Front

Foreset beds

Back

Preview of the front of card 4

Card 5

Front

Bottomset beds

Back

Preview of the front of card 5

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