标题: | Actinium-227 as a deep-sea tracer: sources, distribution and applications |
时间: | 2019-02-11 11:06:02 |
DOI: | 10.1016/S0012-821X(02)00512-5 |
作者: | Geibert, W;Rutgers van der Loeff, M. M;Hanfland, C;Dauelsberg, H.J |
出版源: | 《Earth & Planetary Science Letters》 ,2002 ,198 (1) :147-165 |
摘要: | Actinium is one of the rarest naturally occurring elements on earth. We measured its longest-lived isotope 227Ac (half-life 21.77 yr) for the first time in... |
大小: | 1537 kb |
页数: | 20 PAGES |
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