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Earth History Vocab.

Geological Movements Vocabulary, Rock Cycle

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