Name describe two principles used relative dating rocks

Ice cores showed the age of a military plane buried in the artic as thousands of years old.Similarly, dendrochronology measures the tree rings in trees and assumes they represent years.

Learn how inclusions and unconformities can tell us stories about the geologic past.A fossil can be studied to determine what kind of organism it represents, how the organism lived, and how it was preserved.However, by itself a fossil has little meaning unless it is placed within some context.The age of the fossil must be determined so it can be compared to other fossil species from the same time period.Understanding the ages of related fossil species helps scientists piece together the evolutionary history of a group of organisms.

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