Relative rock dating methods

Laura Wormuth has been a professional writer for over five years and is currently the communications manager for Cambridge International.

To get to that point, there is also a historical discussion and description of non-radiometric dating methods.Absolute Dating is the method by which an actual numerical value is determined for a layer of rock.The most reliable way to accomplish this is through radiometric dating.The primary issue is the lack of "real" dates, as in assigning a numerical value to the number of years that have passed since the formation of the rock sample.Stating that one layer is older or younger than another provides invaluable information regarding the environmental changes represented in the geologic record, but it does not provide a date for the bed.

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