Which statement describes the relative age of a fossil that has formed inside a layer of rock
The fossil is younger than the layer of rock in which it formed.
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A fossil that has formed inside a layer of rock represents a relative age.
The relative age of a fossil that has formed inside a layer of rock can be determined by using the principle of superposition. This principle states that in undisturbed layers of rock, the youngest rocks are found on top and the oldest rocks are found at the bottom.
To determine the relative age of a fossil within a layer of rock, you would first examine the position of the fossil within the rock layer. If the fossil is found closer to the top of the layer, it is likely to be younger than if it were found deeper within the layer. This is because the layers of rock are deposited over time, with newer rock layers being added on top of older ones.
Another principle that can be used to determine relative age is the principle of cross-cutting relationships. This principle states that if a geologic feature, such as a fault or igneous intrusion, cuts across a layer of rock, it must be younger than the rock layer it cuts through. Therefore, if a fossil is found to be cross-cut by a fault or an intrusive igneous rock, the fossil must be older than the fault or intrusion.
By examining the position of the fossil within the rock layer and any cross-cutting relationships, geologists can determine the relative age of a fossil that has formed inside a layer of rock.