The first parallel application of the two geochronometers to Orgnac 3 yields generally consistent results, which point to the reliability of the two methods.
Our current areas of the earliest isotope k ar. Thank you for visiting nature. Potassium, an alkali metal, the Earth's eighth most abundant element is common in many rocks and rock-forming minerals. The potassium-argon K-Ar isotopic dating method is especially useful for determining the age of lavas. Argon isotopic data is used to assess the potential of low-mass samples collected by sample return missions on planetary objects e.
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