Potassium dating techniques

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Potassium—argon datingabbreviated K—Ar datingis a radiometric dating method used in geochronology and archaeology. Your email address is used to log in and will not be shared or sold. This page has been archived and is no longer updated. Potassium, an alkali metal, the Earth's eighth most abundant element is common in many rocks and rock-forming minerals. Slideshows Videos Audio.

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Dating techniques are procedures used by scientists to determine the age of rocks, fossils, or artifacts.

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A technician of the U. Fossils themselves, and the sedimentary rocks they are found in, are very difficult to date directly. Most of the chronometric dating methods in use today are radiometric. Potassium-argon datingmethod of determining the time of origin of rocks by measuring the ratio of radioactive argon to radioactive potassium in the rock. Since the early twentieth century scientists have found ways to accurately measure geological time.

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