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Earth History Vocab.
Geological Movements Vocabulary, Rock Cycle
Word | Definition |
---|---|
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. |