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9 Cards in this Set
- Front
- Back
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Uniformitarianism
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The theory that changes the earth's crust.
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Relative Dating
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Science Determining the relative order of past events, without necessarily determining their absolute age.
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Law of Superposition
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Rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer being younger than the one beneath it and older than one above it.
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Unconformity
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A discontinuity in rock sequence indicating interruption of sedimentation, commonly accompanied by erosion of rocks below the break.
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Principle of original horizontality
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Sediment rocks are originally deposited horizontally.
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Correlation
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A mutual relation between two rocks.
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Principle of cross-Cutting relationships
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determine the relative ages of rock.
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Absolute Dating
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The determination of the age of an object with reference to a specific time scale.
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Carbon dating
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To estimate the age of an object of plant or animal
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