earth science radiometric dating

Annual rock layerings, or varves, occur as the rate of sedimentation changes from season to season. Uranium—lead dating is often performed on the mineral zircon ZrSiO 4 , though it can be used on other materials, such as baddeleyite and monazite see: monazite geochronology. Revoke Cancel. References and Recommended Reading Deino, A. Scitable Chat. Geologists have established a set of principles that can be applied to sedimentary and volcanic rocks that are exposed at the Earth's surface to determine the relative ages of geological events preserved in the rock record. Our History.

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