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10 Cards in this Set
- Front
- Back
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the principle that there are inviolable laws of nature that have not changed in the course of time.
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uniformitarianism
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the interpretation of ancient rocks by applying the results of analyses of modern-day geologic processes in accordance with the principle of uniformitarianism.
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actualism
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the outmoded doctrine that sudden, violent, and widespread events caused by supernatural forces formed most of the rocks that are visible at Earth's surface.
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catastrophism
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an aggregate of interlocking or bonded grains, most of which are composed of a single mineral.
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rock
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A naturally occuring inorganic solid element or compound with a particular chemical composition or range of compositions and a characteristic internal structure.
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mineral
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a portion of a body of rock that is visible at Earth's surface. (Some geologists restrict this term to rocks laid bare by natural processes and apply the term exposure to artificially exposed areas of rock.
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outcrop
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rocks formed by the cooling of molten material.
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igneous rocks
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naturally occurring molten rock found within Earth.
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magma
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an igneous rock formed from lava that has flowed onto Earth's surface from a vent.
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Extrusive (volcanic) igneous rock
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rock formed by the cooling of magma within Earth.`
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intrusive igneous rock
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