anniewilliams anniewilliams

17-03-2014
World Languages

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why do sedimentary rocks have layers?

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17-03-2014

.Sedimentary rocks are laid down in layers called beds or strata. Each new layer is laid down horizontally over older ones in a process called superposition.

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MathG33k MathG33k

23-03-2014

The sediments come down at different times, and the sediments are all different, which creates different colored layers and such

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