A river delta is a landform that is formed at the mouth of a river, where the river flows into an ocean, sea, estuary, lake, or reservoir. Deltas are formed from the deposition of the sediment carried by the river as the flow leaves the mouth of the river. Over long periods of time, this deposition builds the characteristic geographic pattern of a river delta.
Contrary to popular belief, this usage of the word delta was not coined by Herodotus.
Read more about River Delta: Formation, Types of Deltas, Sedimentary Structure, Deltas and Alluvial Fans, Examples of Notable Deltas, Ecological Threats To Deltas, Deltas in The Economy, Deltas On Mars
Famous quotes containing the word river:
“It is from quiet places like this all over the world that the forces accumulate which presently will overbear any attempt to accomplish evil on a large scale. Like the rivulets gathering into the river, and the river into the seas, there come from communities like this streams that fertilize the consciences of men, and it is the conscience of the world that we are trying to place upon the throne which others would usurp.”
—Woodrow Wilson (1856–1924)