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14 Cards in this Set
- Front
- Back
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Example of Relative Dating
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Dinosuars came before humans
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Catastrophism
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Land was changed by a big event
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Uniformitarianism
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Land was changed over time
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How do you know when a layer is the oldest?
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Its at the bottom
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What is cross cutting?
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When a line forms dividing the layers in half
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What is inclusion?
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When magma covers the original layers
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Bishop Usher
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Beleived Earth began 6000 years and in catastrophism
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James Hutton
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came up with uniformitarianism
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uncomformities
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show time and represented with a line
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3 types of uncomformities
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Angular, non, and discomformity
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Angular uncomformity
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rocks on the bottom are angled and new rocks lay on top
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Nonconformity
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rocks on bottom are metamorphed and on top is sedimentary rocks
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Disconformity
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missing layers between sedimentary rocks
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Order from Yougest to Oldest
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F, B, K, N, A, D, M, H, C, L, G, E
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