EQ1 Tintagel + Dorset Flashcards

1
Q

Context of tintagel

A

-Located in North Cornwall

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2
Q

What is the coastline composed of?

A

-Old slate, formed under great pressure

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3
Q

How does geology control the coastline in tintagel

A

-Faults are formed when the pressure to which a rock is subjected to exceeds its internal strength causing it to fracture.
-Fault can be exploited by sea to form micro features like at Tintagel.

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4
Q

Context of Dorset coastline

A

-It is a jurassic coastline (95 mile long)
-Located in Southern England

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5
Q

How does geology control the coastline at dorset?

A

-Durdle door is a natural arch, formed by a layer of hard limestone, standing almost vertically out of the sea.
-In concordant coastlines, rock strata or folds run parallel to coast like in south dorset.

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6
Q

Dorset- how geology controls coastlines

A

Once marine action has breached the relatively resistant wall of limestone, it reaches weak shales which are easy to erode into COVES
- e.g, lulworth cove
Neighbouring coves can come together form a wide bay such as Mupe bay.

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