Last Updated
：2025/11/21
potassium-argon dating
Noun
uncountable
usually
Japanese Meaning
カリウム-アルゴン年代測定法：カリウムの放射性崩壊によって生成されるアルゴンの蓄積量を測定し、それに基づいて火成岩や考古学的遺物の年代を推定する地質学的手法。
（ plural ）
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(geology) A method of estimating the age of igneous rocks or of archaeological objects by measuring the amount of argon that has built up through the radioactive decay of potassium.
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potassium-argon dating
The team used potassium-argon dating to determine that the lava flow was over two million years old.
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The team used potassium-argon dating to determine that the lava flow was over two million years old.
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