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| soil like, partially decayed plants |
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| Bitumen (oil) mixed with sand or clay |
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| A waxy mineral ix with shale |
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| Why is it not profitable to mine? |
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| they are difficult to extract from the earth |
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| Mineral resources & Igneous Processes |
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| As a body of magma cools, heavy minerals crystallize & settle at the bottom of magma chamber |
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| As magma cools into solids liquids and metals collect at the top of the chamber. They can move with rock. The fluid cools, minerals separate and make veins. |
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| When eroded, heavy minerals settle quickly from moving water while less dense particles remain suspended and keep moving. |
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advantages: fuel is free and nonpolluting
Disadvanteges: Clouds |
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| disadvanteges: Expensive to build, nuclear wastes, accidents |
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