Geography - Rocks, Reasources and Scenery

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Period
A basic unit of geological time in which a single type of rock systum is formed. Characterised by the type of animals/plants that lived during this time.
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Era
Two or more periods separated by a catastrofic event which caused mass distinction.
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Ignious Rocks
Rocks formed my the cooling of moten magma.
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Sedimentary Rocks
Rocks made from material the has settled to the bottem of a liquid (the sea) and compressed over time.
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Metamorphic Rock
Sedimentary rocks than have been compressed so much it has changed or transformed into a different rock.
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Weathering
The breakdown of rocks in their origonal place.
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Mechanical/Physical Weathering
Breaks up rock without any chemical changes. It often results in piles of angular rocks called scree at the base of the rock.
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Chemical Weathering
Chemical reaction between the rock and acidic rain water.
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Other cards in this set

Card 2

Front

Two or more periods separated by a catastrofic event which caused mass distinction.

Back

Era

Card 3

Front

Rocks formed my the cooling of moten magma.

Back

Preview of the back of card 3

Card 4

Front

Rocks made from material the has settled to the bottem of a liquid (the sea) and compressed over time.

Back

Preview of the back of card 4

Card 5

Front

Sedimentary rocks than have been compressed so much it has changed or transformed into a different rock.

Back

Preview of the back of card 5
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