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Geology Rocks!

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Across
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A large valley between two separating tectonic plates
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Broken up parts of the earth's crust
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Naturally occurring chemical compound
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A region of very low rainfall
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Molten rock that solidifies under earths crust slowly
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Hawaiian word to describe blocky lava
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The process of one tectonic plate going under another
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Molten rock above earths crust
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Subdivision of geologic time, longer than an age but shorter than a period
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Outermost portion of the earth on top of the mantle
Down
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Area of coral filled with life
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Traces of ancient organisms preserved in rock
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Molten rock below the earths surface
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Landscape characterized by evidence of solution weathering and erosion
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Intervals of geologic time divided into eras
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A long body of water curling into an arched form
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Steady downward movement of solid material
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A molten rock that cools above the earth surface quickly
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Flat body of rock that cuts through another vertically
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A group of sheet silicate minerals, can be split into thin pieces, metallic
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The process of mountain building
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A rock formed by the solidification of molten material
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Process of tectonic plates moving over the mantle
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Bowl shaped depression in the land from a volcano or meteor impact
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Total amount of sediment being carried from a glacier or stream