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26 Cards in this Set
- Front
- Back
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Mineral Resources |
Metal ore and non metallic minerals. |
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3 categories of non metallic mineral resources |
Not metals. Sand, gravel, stone, etc. Economically useful. |
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True or False? |
Mineral resources are non renewable. (True) |
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Ore and ore deposites |
Naturally enriched in metals by geologic processes |
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4 geologic processes |
Magmatic Hydrothermal Sedimentary Weathering process |
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Mafic magma |
High in Fe and Mg |
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Crystal settling |
Creates layers. Some with value. |
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Hydrothermal process |
Most common ore forming process. |
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Hot water in cracks / pores from 3 sources: |
Grantic water from cooling magma. Ground water interaction. Along mid ocean ridges. |
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Hydrothermal vein |
Metals precipitate in a crack or a fracture. |
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Disseminated ore |
Metals permeate pores of country rock. |
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Submarine hydrothermal system |
Black smokers along mid ocean ridges. |
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Sedimentary process |
Placer deposits: dense materials gets deposited in streams (like gold). Precipitated: dissolved mineral matter left behind when water evaporates. |
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Residual ore deposites |
Left behind in the soil |
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Underground mine |
A series of interconnected passages |
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Surface mine |
Hole dug into the surface to find a mineral resource. |
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Fossil fuels |
Formed from the remains of plants and animals |
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Coal |
Composed mainly of carbon |
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Petroleum |
Oil from rock |
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Formation of petroleum |
Burial, heating over millions of years. |
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Kerogen |
Solid organic substance |
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Petroleum sorce rock |
Expelled petroleum rises to the surface. Trapped in resovoirs. |
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Natural gas |
Forms when source rock rises above 100°C. Used as fuel without refining. |
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Fracking |
Technique used to remove petroleum by injecting high pressure water. |
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Oil shales |
Contains waxy kerogen. |
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Nuclear fuels |
Radioactive isotopes to generate electricity. |
