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19-03-2021
Biology

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A type of ____________ occurs in the rock record when a rock layer or layers are missing due to erosion.

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19-03-2021

Answer:

What are index fossils used for? a break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time. Missing rock layers create gaps in rock layer sequences called unconformities.

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