It allows them to work out relative dates.
New rock layers are always deposited on top of existing rock layers. Therefore, deeper layers must be older than layers closer to the surface. This is the law of superposition.
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Scientists make observations.
they dont
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Determine the age of the layers of rocks
the law of superposition is the three group names
The law of superposition states that the oldest strata in an undisturbed formation of rock are the oldest.
According to the Law of Superposition, any sequence of rocks in layers, undisturbed, youngest on top, oldest at bottom
Sedimentary
relative
The age layers of rocks.
The Law of Superposition states that the oldest layer is at the bottom and the youngest at the top. Therefor, what is new builds upon what is preexisting.
This is the law of original horizontality. It is often used in support of evolution as it shows the age of different types of species.
By applying the law of superposition, relative dates can be determined. This law states that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest is on the bottom.
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youngest on top