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:
“The mountain may be approached more easily and directly on horseback and on foot from the northeast side, by the Aroostook road, and the Wassataquoik River; but in that case you see much less of the wilderness, none of the glorious river and lake scenery, and have no experience of the batteau and the boatman’s life.”
—Henry David Thoreau (1817–1862)