Why Depositional Landforms Occur Along the Course of A River
Rivers have three courses. The course is the journey the river makes
to reach the sea. Rivers never have a straight course from source to
mouth. Their course is always irregular. Along this course
depositional landforms can occur. Landforms can be formed from the
deposition of weathered and eroded surface materials. On occasion,
these deposits can be compressed, altered by pressure, heat and
chemical processes to become sedimentary rocks.
This includes landforms with some of the following geomorphic
features: beaches, deltas, floodplains, and glacial moraines. The
upper course is found in the mountains and hills where the river rises
from its source and often waterfalls and rapids are also found in this
course. The river is usually fast flowing in the upper course; also
there are lots of stones and boulders for the water to flow over.
Furthermore, the river starts as astream in the upper course and flows
through valleys. The middle course, however, is where the river starts
to become wider and deeper. The land, which the river flows over, is
becoming flatter and this is where the river starts to meander or bend
in the middle course. The lower course is where the river becomes its
widest and deepest. This course is found closest to the sea where the
river has its mouth. The flat area of land by the riverbanks is known
as a floodplain. Sometimes a river can also have an estuary or a delta
as its mouth. This is due to the following.
Rivers and its landforms are formed and moulded over time chiefly by
the processes of erosion, and by the transport and deposition of
sedim...
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... crescent shaped lakes formed in an
abandoned meander river bend by a meander cutoff. Oxbow lakes are
lakes or ponds found in association with river channels. When a river
channel becomes obstructed by silt and debris, the river will often
cut a new channel around the obstruction. With time the obstructed
area may become completely cut off from the river and begin developing
as a lake. Over time an oxbow lake may become filled with organic
material and be transformed into a marsh.
In conclusion hydraulic variables and physical variables
(relief/climate) aid the development of depositional landforms along a
river. The more turbulent a river is, the more it will occur. The
turbulence differentiates through the three courses; upper, middle and
lower. This results in different landforms occurring at different
stages.
A flood is a large amount of water that covers an area that is normally dry. Floods can occur almost anywhere, but they happen more often on floodplains and on places close to the ocean. The land that floods regularly is called a floodplain. It is called coastal flooding when a large storm or wave from the ocean causes flooding in the cities inland. Some floods take days to develop, while others take minutes to form these are called flash floods.
I believe that this drumlin is closely related to erosion and accretion hypotheses of drumlin formation. This is because of its location being close to a steep valley wall.
A major flood on any river is both a long-term and a short-term event, particularly any river basin where human influence has exerted "control" over the ri...
which can be used as a river, and also attracts people as it can be
and Metamorphic rocks can be found. There are also a lot of crusted plates, and violent
In truth, the river is the border between the gothic space, the Other, and normal space in the novella. For example, in the beginning of the story, when Danillo and Katherine were travelling home on the Dnieper, they witnessed a rising on the side of the Other. “A withered corpse rose slowly from it [one of the graves in a graveyard]. one could see he was suffering terrible agonies” as he begged for air (Gogol 18). Things that should not happen, that should not be possible, happen on the other side of the Dneiper because that is the gothic space.
affects the ecosystem. The land's incline prevents some areas to receive and maintain a water
Our society takes things for granted that the ancient civilizations originally invented. In southwestern Asia around 3500 B.C. the first River Valley Civilizations began. These early civilizations invented many things. The early River Valley Civilizations of Mesopotamia made key contributions to future societies. Two contributions from the Mesopotamian Civilization were the invention of cuneiform and Hammurabi’s Code.
Religion runs deep within each civilization. It has helped shape and given birth to the cultures and society that makes up the civilization. River valley civilization for instance, is one of the many civilizations that have been greatly influenced by religion.
The forecast calls for rain. The erosion of the Le Sueur River has been an ongoing problem for a while. The rain has caused the river to rise, and make residence, and wildlife flee to a safer area. A plan is in store to make this area a quality, safe, and useful area again.
There are small fractures on the surface of mountain rocks and they only absorb a small amount of water. So the surface of a smooth mountain rock will have a higher runoff rate.
Most of the rock formed in this period was limestone and shale. Lias is the most commonly found shale in this area, a soft, reddish coloured rock. Beaches are the most common of the four depositional features. They are created by deposited material from breaking waves; the constructive action is mainly effected by the swash. The swash is the turbulent mass of water, which flows up the beach following the breaking of a wave.
in a habitat, changes in climate, the development or destruction of a mountain range, river
Mudslides usually occur in hilly areas, for an example, when there was a mudslide in Bangladesh few months back, it occurred at Chittagong. Mudslides occur when a portion of a hill side becomes too weak to hold up its own weight. This is generally caused by an intense amount of rain fall. With all of the new water introduced into the slope the content of liquid makes it so heavy that gravity pulls it downward. Although water plays a major factor in creating the mud that flows in a mudslide the real reason that the land begins to slide is gravity. What happens is mudslides redistribute soil and sediments in a process that can be in abrupt collapses or in slow gradual slides.
These are flowing water bodies moving in one direction. Streams and rivers can be found everywhere — their origin may be springs, snowmelt or even lakes, and then travel all the way to mouth, usually another water channel or the ocean. The characteristics of river or stream changes during their journey from their source to mouth. The temperature is much lower at the source as compared to its mouth. The water is clearer and has higher oxygen level. freshwater fishes such as trout and heterotrophs can be found. Towards the middle part of the stream/river, its width increases, and also its species diversity — many aquatic green plants and algae are found. Toward the mouth of the river/stream, the water