OCR B Geography Paper 1 case study distinctive landscapes

River Tees

Where is the River Tees located?

cross fell, the highest point in Pennine moorland is the source of the river

What is the geology of the upper course on the River Tees?

whinestone (hard) and limestone (soft)

What does the geology of the upper course lead to on the River Tees?

vertical erosion forming V-shaped valleys-high force waterfall found here

What is the geology in the middle course of the River Tees?

lateral (sideways) erosion forming meanders

What is the geology in the lower course of the River Tees?

large estuary, mudflats and sandbanks

What are the landforms present at the River Tees?

high force waterfall, meanders, river tees estuary

What weathering processes occur at the River Tees?

mechanical, biological and chemical

What erosion occurs at the River Tees?

hydraulic action, abrasion, attrition and corrosion

What transport occurs at the River Tees?

traction, saltation, suspension, solution and longshore drift

What happened at the River Tees in 1995 and how much did this cost?

Tees barrage was completed and costed £54 million

What did the Tees barrage create?

£500 million of investment in offices, housing and leisure

What did the Yarm flood defence scheme of 1995 do?

-re-enforced concrete walls with 30 metal floodgates and earth embankments

how is a waterfall/gorge formed

soft rock is eroded quicker than hard rock

hard rock is undercut forming an overhang

abrasion and hydraulic action erode to form a plunge pool

overtime the river retreats