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Geology Rocks!

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