JC: How rocks are formed and used
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Igneous Rocks | Formed as a result of volcanic activity. Hot molten magma cools on or within the crust. e.g. basalt, granite
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Sedimentary Rocks | Formed from the remains of other rocks, plant life and animal life.e.g limestone, sandstone.
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Metamorphic Rocks | Igneous or sedimentary rocks that were changed by great heat and pressure e.g marble and quartzite.
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Granite | Formed when molten magma forced its way into the earths crust. It cooled slowly creating large crystals.Pink, black or grey in colour. Found in Wicklow.
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Basalt | Formed when lava cooled on the earths surface. Cools quickly creating small crystals. Grey or black in colour.Found in the Giants Causeway.
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Limestone | Formed on sea bed from the compressed remains of dead fish and sea creatures. Grey in colour. Found in the Burren
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Sandstone | Formed from layers of sand compressed together and cemented.
Brown to red in colour. Found in the Magillycuddy reeks.
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Permeable | Permeable rocks allow water to pass through them.
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Marble | Formed when molten magma pushes its way into limestone.
It is white, red, green or black. Green marble is found in Connemara
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Quartzite | Sandstone came in contact with magma during folding.
It is grey or white.Found on Croagh Patrick
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Natural Resource | Something that occurs in nature that is a value to people.e.g water
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Drilling | A method of extracting oil from deep in the ground.
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Open cast mining | Cheap method of removing resources from the ground near to the surface.It is not environmentally friendly.
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Shaft mining | A method of extracting resources deep in the ground e.g coal
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Corrib gas field | Gas field found off the coast of Mayo.
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Created by:
Ms Sweeney Geography
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