Potassium-Argon Dating Practices. The potassium-argon (K-Ar) isotopic dating method is very ideal for determining the chronilogical age of lavas.

B.A., World Sciences, University of brand new Hampshire Developed within the 1950s, it absolutely was essential in developing the idea of plate tectonics plus in calibrating the geologic time scale. Potassium-Argon Fundamentals Potassium happens in 2 stable isotopes ( 41 K and 39 K) and another isotope that is radioactive 40 K). Potassium-40 decays by

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