“Sm-Nd dating”的概念、定义、翻译、参考文献-科学参考

单词	Sm-Nd dating
释义	Sm-Nd dating Encyclopedia 理学钐-钕定年释 Sm-Nd dating钐-钕定年在Sm-Nd同位素封闭系统中，利用147Sm放出一个α粒子与能量衰变成143Nd，由衰变定律根据母体147Sm的减少量、放射成因143Nd*增加的量计算系统Sm-Nd年龄的方法。
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