potassium-argon age method 钾氩年代测定法 ; 钾氩测年法
argon age method 钾氩年代测定法
potassium-argon age determination 钾氩法年龄测定
age argon 氩年积
The measurement of the decay of radioactive isotopes, especially uranium, strontium, rubidium, argon and carbon, has allowed geologists to more precisely determine the age of rock formations.
对放射性同位素衰变的测量，尤其是铀、锶、铷、氩和碳，可允许地质学家更精确地确定岩层的年龄。
Potassium-argon dating: Method for determining the age of igneous rocks based on the amount of argon-40 in the rock.
钾-氩年代测定法： 根据岩石内氩-40的含量来测定火成岩形成年代的方法。
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