| ACROSS |
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The geologic principle that in sedimentary layers of rock, if they have not been disturbed, then the lowest layers are the oldest, and the topmost layers are the newest. |
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Mass of igneous rock that cuts across the structure of the next rock. They are igneous rocks that were formed in rock fractures when magma is pushed onto surface and cools. | |
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| DOWN |
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A rule that states that anything that disturbed other geologic features would have to have happened after the layers of sedimentary rock were deposited. |
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A curve or a bend in layers of rock sediment. When plates collide with great pressure and when layers of sedimentary rock are squeezed and collapsed. | |
