• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Rivers and landscapes

Extracts from this document...

Introduction

Rivers A river uses the material it has transported to erode its banks and river bed. As the velocity of the river increase the load that the river can carry also increases, this then increases the rate at which the river erodes. These are the main way in which river can erode: Attrition This is when larger boulders and other materials which the river is carrying collide and break up into smaller pieces. This mainly occurs in the highland areas where the rivers are still flowing. Hydraulic action This when the force from the river dislodges particles from the river banks and bed, this wideners the river bed and the side of the river. The amount of hydraulic action increases as the river grows in size. Corrasion This process generally occurs in the lowland areas as the particles are small enough to rub against the sides of the banks of the river. These particles are carried by suspension. ...read more.

Middle

The material from this is then added to the river content, making the erosion worse. The river itself is forced to divert around hillsides, the hillsides that are known as interlocking spurs. The V-shapes are mostly found in highland areas just like Burbage Moor. In many of the meanders and bends in the course of the river there are many river cliffs, which meanders are characterized by. These are cliffs on a river, which over hang where the river has eroded the outside bend. The outside bend is eroded by a mixture of hydraulic action and abrasion. This creates an overhang of material which can be destroyed if the erosion underneath becomes too much, this will make the cliff collapse as there is nothing supporting the weight. River cliff shown in the diagram River rejuvenation is caused when a river cuts down into its channel and it will leave behind it, its old flood plain on the valley side to form a river terrace. ...read more.

Conclusion

There are so many lake because of the volcanic rock, which doesn't allow water to seep away as it is a hard rock type. The high average rain fall percentage and the glacial valleys, mean that the valleys are able to store large volumes of water with out it escaping. Honister (picture) A U-shaped valley carved out of volcanic rock by glacial action. Leaving a very smooth glacial U-shaped valley. Striding edge (picture) The glacial impact on the Lake District can be seen though the many valleys and sharp mountains. The oldest rocks are Skiddaw Slate series and Borrowdale Volcanic series, dating back to around 500 million years ago. The Skiddaw slate is found in the north of the part and is thought to have been deposited in shallow seas. The Borrowdale Volcanic rocks are lot more resistant to weathering and form the highest peaks in the Lake's; this is because of it being resistant to most forms of weathering. Forms of igneous rock are in both of the series. The other large rock group is the Silurian Windermere Group which is made up of limestone that rests upon the volcanic rock. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Physical Geography section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Physical Geography essays

  1. Cliff erosion in East Sussex - the processes, problems and solutions.

    sea, the most extreme example being the total loss of the natural beach at Seaford. The effects of global warming; rising sea levels and increased storminess, are expected to strengthen the attack in the future. 4.51 Many of the defences against erosion or flooding have traditionally been 'hard engineering' works, such as walls and groynes.

  2. Easedale and Glacial Features

    Analysis Field Sketch 1: Roche Moutonn´┐Że (pg 6) In the sketch, it's showing a large mound of borrowdale volcanic granite which starts off smoothly curved and then drops down into a steep and slightly jagged surface. This general structure of the borrowdale granite instantly suggests that it's a roche moutonnee.

  1. Geography Rivers

    To show how speed changes over the width of the river. In the upper course of the river, the river was narrow with lots of obstacles. The solution was to find a stretch free from branches. The float stuck on stones and distorted the timing.

  2. Geography - Ivestigation of the River Colne, Buckinghamshire

    The line graphs I plotted from the moving averages (plates 2.1, 2.2) do seem to conform to hypothesis 1. I drew an approximate best fit line for plates 2.1 to 2.4 and 4.1. The line is very approximate, and in most cases I just the line from first to last point, but moved up or down a little.

  1. Physical Case Studies AQA Revision notes - Ice, rivers and volcanoes.

    no upper limit, based on scientific recordings * Expressed using numbers, measured with a seismometer, gives no indication of damage caused Measuring Earthquakes- The Mercalli Scale * An arithmetic scale, from 1-12 * Expressed using roman numerals, measured by observations, is based on opinions only Earthquake in a MEDC- Kobe,

  2. Comparison between Cambridge park and candie gardens

    Road name Amherst Road Cambridge Park Road Winston Churchill Avenue Rouge Rue Num of spaces 0 20+1 disabled space 33 4 Candie Gardens: Car park 1 2 3 4 5 Num of spaces 2 4 Road name Les Vauxlaurens St Julian's Avenue Candie Road Cambridge Park Road Num of spaces

  1. Field investigation around the hypothesis: The River Piddles bed load will become smaller and ...

    Wetted Perimeter Measure width and average depth; add the depth to double the width. Shows average size of river, can be compared at each different site. Uses average depth from each site, has been taken from a number of results.

  2. To delimit the edge of the Central Business district of Nottingham along a transect ...

    Housing in Nottinghamwas split in to, low-class residential, Middle-class residential and High-class residential. Usually the higher the class of housing the further away from the CBD, but Nottingham consists of places such as Mapperley Park which sectors in to the CBD.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work