“samarium-neodymium dating”的概念、定义、翻译、参考文献-科学参考

单词	samarium-neodymium dating
释义	samarium-neodymium dating Encyclopedia 理学核分析技术释 samarium-neodymium dating钐-钕年代测定根据样品中147Sm经α衰变形成稳定的143Nd的放射性衰变规律，以非放射成因的稳定同位素144Nd作为参考核素，测量封闭体系中147Sm/144Nd和143Nd/144Nd的含量比值，来计算样品年龄的一种放射性同位素年代测定方法。
随便看	Stone Inscriptions of Ancient Calligraphy Masterpieces of the Baoxian Hall Stone Inscriptions of Jurchen Hierogryphic Stone Inscriptions Recording Alliances from Wenxian stone inscription with ancient scripts, small seal scripts and clerical scripts stone in the urine Stone Kneeling Person with Tiger's Head from Mausoleums of Xibeigang stone land certificate Stone lattice Stoneley wave stoneley wave stone-like coal stone lithography stone loaches stone locker stone machining machine Stone Man Mountain Scenic and Historic Area Stone Map of the Han People and Minorities of the Song Dynasty stone map of water systems of Song Dynasty stone marten stone masonry stone matrix asphalt Stone Memorial Archway at Zhangzhou stone memorial Hall at Guos' Cemetery on Xiaotang Mountain Stone Money stone moroco

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