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Chapter 8 Section 1

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Across
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Igneous rocks that form when magma flows between layers of solid rock and then cools and hardens
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Law of ______ relationships states that a fault or intrusion is always younger then the rock it cuts through.
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Size of particles sorted from top to bottom. Largest particles are at the bottom
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There are _______ types of unconformity
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States that geological processes happen the same way they did in the past.
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Faults and intrusions make it ______ to tell the relative age
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Boundary between two beds is called.
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The principle of original horizontality says that if rocks are ______ the horizontal layers remain.
Down
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Beds that have an angle to the bedding plane.
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Scientist can learn about Earth's past by studying the _________.
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Age of an object or event compared to another object or event.
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Disturbing rock layers can create________ or a break in the geologic record.
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If the crests or tops of these marks point upward, scientist can tell if the rock is undisturbed
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Law of _____ is used to determine the relative age of layers of sedimentary rocks.
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A break in the Earth's crust, where the rocks shift
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Compressed sediments become stuck together in sedimentary rock layers called