Geological Movements Vocabulary, Rock Cycle
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| Uniformitarianism | The idea that the same geologic processes that shape Earth today have been at work during all of Earth's history.
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| Catastrophism | The idea that geologic change happens suddenly.
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| Paleontology | The science that deals with the study of past life.
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| Relative Dating | Determining whether an object or event is older or younger than other objects or events.
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| Geologic Record | A geologic history of the Earth.
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| Igneous Rock | Rock that forms when magma cools.
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| Metamorphic Rock | Rock that forms when any type of solid rock changes into another type of rock because of temperature or pressure changes.
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| Sedimentary Rock | Type of rock that forms from fragments of other types of rocks.
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| Superposition | The principle that younger rocks lie above older rocks in undisturbed sequences.
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| Unconformity | A surface that represents a break in or a missing part of the geologic record.
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