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law of superposition of strata


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Nicolaus Steno (1638—1686) Danish anatomist and geologist

 

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Strata are deposited sequentially, so that in an undisturbed sedimentary succession each layer of rock is younger than the layer beneath it. Subsequent earth movements may overturn and invert this sequence. The law was first proposed in the 17th century by Nicolaus Steno.

Subjects: Earth Sciences and Geography.


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