“(uranium-thorium)/helium dating”的概念、定义、翻译、参考文献-科学参考

单词	(uranium-thorium)/helium dating
释义	(uranium-thorium)/helium dating Encyclopedia 工学〔地学中核技术〕释 (uranium-thorium)/helium dating(铀-钍)/氦年代测定矿物颗粒中铀、钍放射性衰变产生氦，通过测量矿物样品中放射性衰变产物氦-4（4He）、母体同位素铀-238（238U）和钍-232（232Th）的含量，从而获得矿物样品年龄的方法。
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