Abunance of Iridium and other elements from ODP Hole 121-752B (Table 1)
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Following neutron activation, a study was made with the Iridium Coincidence Spectrometer (ICS) of the abundance profile of iridium in the Cretaceous-Tertiary boundary region of...
经中子活化后，本研究利用铱符合谱仪（Iridium Coincidence Spectrometer，ICS）对白垩纪-第三纪边界区域的铱丰度剖面展开了研究……
