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In the upper course: The valley is V-shaped due to there being lateral erosion and gravity is the predominant force and the water wants to reach the base level (sea level). There is more transportation by suspension, traction and saltation but not solution. Erosion is primarily hydraulic action and solution. Finally, there are interlocking spurs in the upper course which wind round the rocks (but are no meanders)
In the Middle Course: The valley becomes wider as lateral erosion takes over, due to the fact that the river is closer to the base level. Meanders begin to occur as there is faster flow on the outside so more erosion but slower velocity on the inside causing deposition.
In the lower course: The river is at it's deepest here and most wide, which much larger meanders. The valley has a greater velocity as there is less friction. Most transportation is in the form of solution
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoThe river valley changes in the middle course by becoming a flood plain.
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What is a stream of water coming down from a high place?
I think its a river!
What is an example of flowing freshwater?
A mountain stream, or a river flowing lower down in the valley.
A deep narrow valley with steep sides that sometimes has a stream or river flowing through it is a?
the river running through rock wear it down into deep valley with the steep sides what is it called
This large river has a valley and the mistral wind is known to whistle down the valley of this river what is it?
Rhône River valley
Which type of stream valley is formed primarily by down cutting?
Narrow valley.
What is the St. Lawrence River Valley?
it is the valley that the St Lawrance river flows down.
How does river Nile change as it flows down stream?
Mainly it becomes polluted and it loses a large amount of its water through evaporation in the desert.
Why the v shape of a stream valley on a topographic map always point upstream?
Because the river is small at the top and big lower down. Just sometimes you get a river that is big at the top and smaller at the bottom, which is why you should never say "always".
How is water redirected from a river to lake?
a little bed of water flows and the joins a bigger bed of water, where it joins a stream and then another stream to a bigger stream, then a river which joins a bigger river then goes down to a waterfall where it joins a lake.
Is the Mississippi river a youthful stream?
The Mississippi River has three stages: First, it is a youthful river, further down the stream it comes into its mature stage, and even further down the river, at the end, it comes into its old age stage. All rivers have three stages, it just depends what part of the river you are looking at.
Which feature is created by the wearing down of soil and bedrock of a river or stream?
meander
Why does a mudflow usually gush down a stream or river?
Because there strong enough
