Chapter 8 Clocks in Rocks - Earth Systems Geology 1301...

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Earth Systems Geology 1301 Chapter 8: Clocks in Rocks Department of Earth & Environmental Sciences University of Texas at Arlington
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About the Clocks in Rocks The “clocks in rocks” come in the form of sedimentary layers, fossils and radioactive (unstable) isotopes. Geologists refer to both relative age and absolute age.
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