Answer: At the old stage of the river it is flowing on flat land . As a result it has to use most of its energy to flow instead of moving its load. More deposition starts to occur and common features begin to form such as ox bow lakes (diagram).
What are the main characters of a river in its old stage?
Old Age: A stage in the development of a landscape when streams have a low gradient (slope) and meander back and forth across broad floodplains. The landscape is marked by meander scars, oxbow lakes, levees, point bars and swamps. Its course is graded to base level and running through a peneplain, or broad flat area.
What is the old age stage of a river?
The Old Stage
At the Old age stage the river is usually at it’s widest . The land is also at its flattest. This means that the river has to work very hard to make its way to the sea. The main agent at work now is Deposition.
What is the characteristic feature found in mature stage of river?
In the mature stage of a river the slope becomes gentler and the river becomes much wider as it is joined by many tributaries . The river is also carrying a load now that has been eroded from further upstream. Meanders are bends or curves which are found in the mature stage (middle course) of a river.
What are the characteristics of an old river?
Old river – a river with a low gradient and low erosive energy . Old rivers are characterized by flood plains. Rejuvenated river – a river with a gradient that is raised by the earth’s movement.
What are the three main characteristics of a river?
Upper course river features include steep-sided V-shaped valleys, interlocking spurs, rapids, waterfalls and gorges . Middle course river features include wider, shallower valleys, meanders, and oxbow lakes. Lower course river features include wide flat-bottomed valleys, floodplains and deltas.
What are some characteristics of an old stream?
Old-age streams have very extensive meandering, with a wide, low valley wall that can also be indistinguishable from the floodplain . Floodplain features such as meander necks, oxbow lakes, meander scars, and yazoo tributaries are common for old age streams, but can also be present for mature-age streams.
What is in the upper course of a river?
Upper course river features include steep-sided V-shaped valleys, interlocking spurs, rapids, waterfalls and gorges . Middle course river features include wider, shallower valleys, meanders, and oxbow lakes. Lower course river features include wide flat-bottomed valleys, floodplains and deltas.
Where does water in a river flow the slowest?
1. Toward the middle of a river, water tends to flow fastest; toward the margins of the river it tends to flow slowest. 2. In a meandering river, water will tend to flow fastest along the outside bend of a meander, and slowest on the inside bend.
What are loops of river called?
A meander is one of a series of regular sinuous curves, bends, loops, turns, or windings in the channel of a river, stream, or other watercourse.
What are the 3 stages of rivers?
- The course of a river includes the upper stage, the middle stage, and the final stage. ...
- The upper stage of a river is also called the youthful stage or mountain stage. ...
- The place where two rivers join is called as the confluence. ...
- Middle stage is the matured stage of a river.
How many stages are there in river?
A river is often divided into three parts or stages and has features that are specific to each stage.
What are the different stages of the river?
- Young River – the upper course.
- Middle Aged River – the middle course.
- Old River – the lower course.
What stage of a river is a waterfall?
A waterfall is a feature of erosion found in the youth stage of a river. Waterfalls are found in areas with bands of hard and soft rock (otherwise known as resistant and less resistant rocks). The hard rock takes longer to erode than the soft rock (differential erosion) so the river erodes the land at different rates.
Which two valleys are formed at the youthful stage of a river?
In the youthful stage of fluvial cycle of erosion V-shaped valley are formed. It is steep-walled valley having narrow depression. Both the valley sides meet together at valley floor and water always touches the valley. V-shaped valleys are the result of accelerated rate of downcutting of river.
What is the starting point of a river called?
The place where a river begins is called its source . River sources are also called headwaters. Water from Lake Itasca, Minnesota, dribbles down these rocks to form the source of the Mississippi River. The place where a river begins is called its source.
