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The river Tees

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Introduction

What evidence is there that the river Tees has a upper and lower course? The Tees is a river in Northern England. It rises on the eastern slope of Cross Fell in the Pennines, and flows eastwards for about 87 miles (137 km) to the North Sea, between Hartlepool and Redcar. It drains an area of 708 square miles (1834 square km), and subsumes no important tributaries. The river formed the boundaries between the historic counties of County Durham and Yorkshire. At its lower reaches it now forms the boundary between the ceremonial counties of County Durham and North Yorkshire. Like most rivers, the River Tee has an upper and lower course. The upper course is the start of the river. ...read more.

Middle

The sides of the gorge are made less steep by the weathering creating a V shape. The river channel is rough and shallow because there are large stones, rocks and boulders in the river channel. Rapids occur when it past a series of alternating soft and hard rock. There would be sudden fall of water along parts of the river and the speed of the river is usually fast due to the change in gradient. The more resistant hard rock would not be eroded as fast as the soft rock and therefore, there is a different in level. Energy of the river is used to overcome the friction between the water and the rock particles. There is little or no erosion that take place. ...read more.

Conclusion

It flows over land with very gentle gradient River Valley - Broad - Flat - Bounded by bluffs The type of the erosion that takes places here is lateral erosion. Vertical erosion has almost stopped. Its main activity is transporting and deposition. Other evidence that there is a lower course to the river tees is ox-bow lakes these are formed when two concave banks of the meanders erode and become joined together. The river would then flow straight. Deposition takes places and cuts the river from the meanders loops. As more Deposition takes place, the meander loop becomes independent and is called an ox-bow lake. An ox-bow lake is a horseshoe shaped or crescent shaped lake. Waterfalls and V-shaped valleys on the upper course of the River Tees Meanders and the mouth of the river tees on the lower course of the river Tees ...read more.

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