In this screencast we continue our discussion on water as an agent of erosion with meandering streams. 10th grade. Points A through D represent locations on the surface of the stream. When a stream meanders around a bend the outside water must travel faster than the water on the inside of the curve. ... aggradation, meandering stream. Sinuosity ratio as defined by Allen (1970). Meandering Channels - Because of the velocity structure of a stream, and especially in streams flowing over low gradients with easily eroded banks, straight channels will eventually erode into meandering channels. a minute ago. Sediment deposited by a river on a valley flow outside the stream channel. The vertical facies sequence of the two is a completed positive rhythm layer, with a typical binary structure. The greatest erosion along a river bank occurs where the velocity is the slowest the velocity is the fastest on the outer bend of a meander ... meandering stream. 2 years ago. by vgianna_61880. In a meandering river or stream, the area of highest erosion would be on the outer bend of the meander. Extreme meandering as the land subsides leads to the development of stream terraces. Point bar. This increased speed leads to increased erosion and the bend becomes wider. Edit. Now select the right movie camera to see the bank of the mountain stream. 0. Helical flow then. Deposition would occur on the shore of the inner bend. The Meandering Stream III. When the flow and the stream are, either Vertical erosion makes a river channel deeper. E. stream flow? You can see how this happens in Figure below and at the link below. Erosion tends to be concentrated on the outer banks of each meander or curve. B. Downcutting following the rise of the landscape produces stream terraces. answer choices . • POINT BAR The sediments accumulating on the convex side of the meandering loop as the channel is migrating and the outside bank is eroding results in the formation of point bar. Flowing water does the work of both erosion and deposition. Meandering Stream & Glaciers Quiz DRAFT. 0. Meandering Stream & Glaciers Quiz DRAFT. The curves are called meanders because they slowly “wander” over the land. They are typical of the middle and lower course of a river. fate” of the stream. Meandering Stream & Glaciers DRAFT. Features of a meandering ... A meandering stream can become locally braided in reaction to a sudden influx of sediment from a bank or tributary. D. Extremely rapid downcutting associated with a drop in sea level produces stream terraces. This erosion happens near its source. downcutting River channel retention sedimentary bed with a … Despite the ubiquity of meandering rivers in nature, only recently have appropriate experimental conditions been produced to replicate a stably meandering stream in the laboratory, as described in a recent issue of PNAS (1). are selected. Mountain stream. lithological characteristics, topographic characteristics, general slope, vegetation, annual precipitation, stream discharge and of course the stage of river development and cycle of erosion (i.e., timal factor). Large curves, called meanders, form because of erosion and deposition by the moving water. One landscape feature is labeled X. Edit. Water velocity is one of the main influences on sediment behavior in a stream system. Figure 7. What is the dominant fluvial process in a clear, sediment-poor stream moving down a steep slope? Science. Keywords: meandering, bed deformation, bank erosion, plan shape, planimetric evolution. They are typical of the middle and lower course of a river. PhD thesis, University of Illinois Urbana-Champaign, 207p. The diagram below shows a portion of a stream. 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