How can relative dating be used in geology?


How can relative dating be used in geology?

Relative and Absolute Dating:

Relative dating uses comparisons to create a range of possible dates for the age of rock layers. Another type of dating, absolute dating, uses the known decay rates of radioactive isotopes to provide more exact dates. However, radiometric dating cannot date sedimentary rocks or rock layers lacking those isotopes.

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In geology, relative dating can be used to determine the age of a rock stratum based on the fossils found in the stratum as well as index fossils...

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What is Relative Dating? - Law of Superposition, Principles of Original Horizontality & Cross-Cutting Relationships


Chapter 2 / Lesson 4

Learn about how geologists learn about the earth's crust, what relative dating tells them about the rock layers, and how it differs from absolute dating.

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