river base level of erosion

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• Base level — The base level of a river or stream is the lowest point to which it can flow, often referred to as the mouth of the river. For large rivers, sea level is usually the base level, but a large river or lake is likewise the base level for tributary… …   Wikipedia

• base level —   the lowest elevation to which erosion can take place. Usually sea level but could be lower if a river drains into an inland sea or lake whose level is below sea level …   Geography glossary

• Erosion — is the carrying away or displacement of solids (sediment, soil, rock and other particles) usually by the agents of currents such as, wind, water, or ice by downward or down slope movement in response to gravity or by living organisms (in the case …   Wikipedia

• River delta — Nile River delta, as seen from Earth orbit. The Nile is an example of a wave dominated delta that has the classic Greek delta (Δ) shape after which river deltas were named. A delta is a landform that is formed at the mouth of a river where that… …   Wikipedia

• Entrenched river — An entrenched river is a river that is confined to a canyon or gorge, usually with a relatively narrow width and little or no flood plain, and often with meanders worn into the landscape. Such rivers form when an area is elevated rapidly or for… …   Wikipedia

• river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …   Universalium

• River Thames — Thames redirects here. For other uses, see Thames (disambiguation). Coordinates: 51°29′56″N 0°36′31″E / 51.4989°N 0.6087°E / 5 …   Wikipedia

• River Torrens — Infobox River river name = River Torrens caption = View of Elder Park and Riverside Precinct from Torrens Lake. origin = Mount Pleasant, Mount Lofty Ranges mouth = Gulf Saint Vincent at Henley Beach South basin countries = length = 85 kilometres… …   Wikipedia

• Avulsion (river) — In sedimentary geology and fluvial geomorphology, avulsion is the rapid abandonment of a river channel and the formation of a new river channel. Avulsions occur as a result of channel slopes that are much lower than the slope that the river could …   Wikipedia

• Cycle of erosion — The cycle of erosion was a model for stream erosion and landscape development proposed by William Morris Davis in the late 19th century. Davis Stages in the fluvial cycle of erosion published in 1909 defined a young, mature, and old sequence in… …   Wikipedia

• Rejuvenation (river) — A river is said to be rejuvenated when the base level that it is flowing down to is lowered. This can happen by uplift of land, or by a sea or lake that it is flowing into becoming lower. That makes the river suddenly start eroding its bed… …   Wikipedia