Dorset Coast Purbeck Flashcards
Where
South coast of England
High or low energy coastline
High
Name of the features/formations/landforms
The Foreland - the end part of the headland and Old Harry Rocks - a sea stack
Swanage Bay - wide open bay
Peveril Point - sharply pointed headland
Durlston Head - headland
Muse Rocks - series of sea stacks
Lulworth Cove - cove
Stair Hole - cove
Drudge Door - arch
Is Swanage Bay on a concordant or discordant coastline
Discordant
What type of rock is used to make he headlands either side of Swanage Bay
North - chalk
South - limestone
What is the main rock type forming this coastline igneous or sedimentary
Sedimentary
Which type of rock is likely to produce steeper cliffs shale or limestone
Limestone
Why are some of the rocks along this last line faulted/cracked and folded
Due to tech tonic forces/plate movement
Which type of coastline does Lulworth Cove lie along
Concordant
Which way do the rock layers at Peveril Point and Durston Head dip landwards or seawards
Landward
Why is weathering particularly active along this coastline
Limestone and chalk - vulnerable to chemical weathering
Sedimentary rocks - have bedding planes/joints/cracks - vulnerable to freeze-thaw
What makes this coastline vulnerable to erosion
Sedimentary rocks - horizontal bedding planes are quarried by waves at the base to create wave cut notches
Sedimentary rocks - vertical cracks and crevices widened by hydraulic action
Where can a natural arch be found
The Foreland
Durdle Door
Where can sea stacks be found
The Foreland - Old Harry
Mupe Rocks
Where can vertical cliffs be found
The Foreland
Durlston Head
