River Tees Flashcards
Where does the River Tees flow from and to?
From the North Pennines eastwards to the North Sea
The uppercourse land is saturated. What does saturated mean?
Water logged
What does this excess water from the saturated ground do?
Creates streams and rivulets
Why is runoff high in the upper course
Steep slope
Why is erosion the dominant force in the uppercourse?
Due to the steepest gradient which means more energy
How are the V shaped valleys formed?
Loose wet soil slumping downstream
What is the main aspect of the uppercourse?
High force waterfall
How is the undercut on High force formed?
Resistant cap rock is above softer limestone and limestone gets eroded causing an undercut
How is the gorge formed?
High force retreating upstream
What does the winding river course cause?
Interlocking spurs
What appears in the middle course?
Meanders
How do meanders form?
When lateral erosion becomes more significant than vertical erosion
What is the name of the market town located on the inside bend of the meander?
Yarm
Why is a river cliff formed?
Due to the faster water on the outside bend of the meander meaning more erosion
What does the material deposited on the inside bend form?
A slip off slope
What is eventually formed from a meander
Ox bow lake
What forms as the valley floor becomes even more flat?
Floodplain
How is material deposited onto the floodplain?
River material carried by suspension
What does the heavy material deposited first form?
Embankments called levees
The silt and alluvium deposited first is…
Very fertile - farms are formed
What does the silt deposited into the North Sea form?
Mudflats
What is the name of the mudflat at the bottom of River Tees?
Seal sands
