The theory related to the seismic movement of the earths plates
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Geology
The different types of rock that make up an area
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Magma
Semi-molten rock found in the mantle layer of the earth
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Carboniferous limestone
Deposited rocks that were formed between 363&325 million years ago.
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Joints
A vertical crack within a layer of rock
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Weathering
The breakdown and decay of rock by natural processes acting on rocks, cliffs and valley sides
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Freeze thaw
The process of rocks breaking up from repeated freezing and thawing.
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Tors
A block of granit found at the top of a hill
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Clitter slopes
The trail of deposited rocks from the action of freeze thaw weathering on tors
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Iimestone pavement
A horizontal or genial sloping area of limestone, comprise of large block separated by deep eroded fissures.
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Grykes
Vertical joints, enlarged by weathering, between the blocks in a limestone pavement.
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Clints
The large blocks of rock on a limestone pavement , separated by grykes
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Abrasion
This type of erosion is caused by rivers, glaciers or waves picking up sediments and rubbing them against rocks in the bed and banks, valley or cliffs.
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Other cards in this set
Card 2
Front
Tectonic processes
Back
The theory related to the seismic movement of the earths plates
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