Physical processes on Upland UK Landscapes: Dartmoor Flashcards
What is Dartmoor an example of
An upland landscape that formed when a massive dome of magma developed underground 290 million years ago
What happened to the magma at Dartmoor when it cooled
Granite was formed
What happened to the magma at Dartmoor when it contracted
Cracks known as joints developed
What happens when there are weaker joints in the rock
The rock becomes vulnerable to freeze-thaw weathering
What did the freeze thaw weathering cause
The granite to break up
What happened to Dartmoor’s granite over time
The granite became exposed making it more vulnerable to erosion and mass movement processes which removed the broken up granite
What is Bowerman’s Nose
One of Dartmoor’s famous Tors
How did Bowerman’s Nose form
When blocks of rock with fewer joints were left behind, and the largest blocks were left standing, surrounded by clitter slopes covered in smaller rocks
What makes the tors continue to change
Freeze Thaw and Chemical Weathering
