Question

Can you name some other fluvial landforms in the mature stage of a river?

Answer 1

Intermediate Stage In this (mature) stage streams have thoroughly dissected the former highlands, and the whole area is covered with a well developed drainage network. The drainage divides are narrow now, overall the landscape is marked by steep slopes that lead down to the stream channels. Gradually we approach a balance between erosion and deposition. In the areas of the tributaries river gradients are still steep enough to allow further incision, in the area of the main stream the slope is not as steep any more, and the transport power of the stream is not large enough any more to move all the sediment that is supplied from the tributaries. Thus some of this sediment is now deposited on a flood plain in the main valleys (think of longitudinal stream profile development). Thus the main stream begins to meander and sweeps across its valley (still some erosion on the slopes [slope retreat] and cutbanks). The landscape consists now of rolling hills between the tributaries, and a widening floodplain along the main stream. Erosion is still larger than deposition during this stage.The picture at left shows a representative landscape in the Rocky Mountain foothills of Colorado.Late Stage In this (old) stage, as erosion continues and the flood plains are widened by continued slope retreat, we finally reach a point where the slope is so low that no net erosion occurs any more, and erosion on the slopes is balanced by deposition on the floodplains. The hills are further reduced and the floodplains rise by overbank deposition (flooding), until we finally end up with a landscape that is reduced to a fairly featureless, flat surface that gently slopes towards the ocean. This surface is also called a peneplain. From now on the rivers just sweep over the floodplain and rework the sediment, creating various floodplain features, such as oxbow lakes, meander scars etc. Isolated remants of resistant bedrock may rise over the peneplain surface, the so called monadnocks or inselbergs.The picture at left shows a representative landscape of that type from the lower Mississippi Valley. The picture was taken from one of the remaining bedrock hills

Answer 2

Some of the fluvial landforms in the mature stage of a river are canyons, waterfalls, springs, Esker, Fluvial terrace, flood plains, gully, islands and many other kinds of landforms

Explanation:

• Fluvial landforms are landforms  that are made  by rivers and streams when they flow through the valleys and the mountains. They flow through these areas carrying rich alluvial soil and deposits of alluvium.
• The rivers when they flow through the mountains carrying blocks of ice sheets and glaciers they result in creating of fluvioglacial  landforms by the process of water and ice.
• The fluvial erosion take place hydraulic process, attrition and abrasion with forms of deposition and the various forms of landforms created by the rivers flowing through the region

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Difference of old alluvial soil and new alluvial soil

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