Distictive Landscapes Case Study The River Eden

Question 1

Describe the the location of the river Eden

Answer 1

It is in the North West of England with it source in the Lake District and pennines

Question 2

Name two places the river Eden flows through

Answer 2

Abbleby and Carlisle

Question 3

Give two example of landforms created by geomorphic processes in the upper course

Answer 3

V shaped valleys found in the Lake District and Hell Gill waterfall

Question 4

Name a geomorphic feature found in the middle course

Answer 4

Meanders like that found in Salkeld

Question 5

Name a geomorphic feature found in the lower course

Answer 5

Flood plain at Carlisle

Question 6

How does weathering influence geomorphic processes in the upper course ?

Answer 6

The higher ground freezes so there will be freeze thaw weathering breaking up exposed rock

Question 7

How can heavy rain contributed to geomorphic processes ?

Answer 7

Heavy rain soaks into the ground and landslides are more likely the river banks might slump also the river has more energy and transports more material like rocks and trees causing more damage in erosion

Question 8

Name two process of erosion that will cause more damage when the river is high ?

Answer 8

Hydraulic action and abrasion

Question 9

What is attrition?

Answer 9

Where eroded particles of rock in the water smash into each other breaking into smaller pieces and getting more rounded

Question 10

Why would hard igneous rock cause lots of surface streams

Answer 10

Because cause they are impermeable and will not let water soak in

Question 11

Describe what carbonation is ?

Answer 11

Limestone rock reacts with rainwater which has carbon dioxide dissolved in it this makes it a weak carbonic acid, this reacts with limestone which contains calcium carbonate and the rocks are dissolved

Question 12

Explain how the geology of the area created Hell Gill on the river Eden ?

Answer 12

This happened when the river flows from hard rock to softer rock creating a waterfall, erosion of the softer rock by the waterfall undercuts the hard rock above and hydraulic action by the fast flowing water in the plunge pool weakens the soft rock eventually the hard rock above collapses and continued abrasion by the broken lumps of rock continued to erode the soft rock and the waterfall slowly retreats upstream