カリウムアルゴン法ほうMeanings1nounpotassium-argon datingScientific dating method used in geology and archaeology, based on the radioactive decay of potassium-40 to argon-40.この火か山ざん岩がんの年ねん代だいはカリウムアルゴン法ほうで測そく定ていされた。The age of this volcanic rock was measured by potassium-argon dating.
