Meander animations9/15/2023 ![]() ![]() In the short video below, the narrator not only shows how deltas form but also how different types of deltas form. When a river eventually drains into the ocean or a large reservoir, it loses energy and deposits sediment. Will this kind of exaggerated meander develop an oxbow lake?.What kind of a meander is present in the Yakima River as described in the video above.Identify the locations in Figure 4 where deposition occurs.Identify the location in Figure 4 where erosion occurs.Using Figure 4 above, match the letters to the appropriate terms: Channel, Floodplain, Point Bar, Cut Bank, Oxbow Lake.What feature forms when a meander becomes so pronounced that it is cut off from the main channel?.Where does sediment accumulate in a meander?.In which part of the meandering section of a river is the velocity of the stream higher?.Map source: National Map.Ĭonsult the above videos and the resources below to answer the following questions: Many features of a meandering stream are visible. See the image below of a meandering stream in central Alaska – can you identify the different features in this meandering stream? Figure 4: Meandering section of a stream ( Holitna River and Titnuk Creek) in central Alaska. In the animation and video below you see how meanders develop in different geological settings. Over time, the sinuosity of the stream becomes increasingly exaggerated, and the channel migrates around within its flood plain, forming a meandering pattern. This leads to erosion of the banks on the outside of the curve, deposition on the inside, and the formation of a point bar. When a stream flows around a corner, the water on the outside has farther to go and tends to flow faster. ![]()
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