灾变环境与铂族元素核分析技术

Disastrous environment and nuclear analytical technologies for platinum group elements

概述了由核分析技术测定铱在研究灾变环境中的应用 ,提出了白垩纪 /第三纪生物绝灭事件的地外撞击理论 。

The applications of nuclear analytical techniques for determination of iridium in the disastrous environment was briefly outlined. This study led to the outcome of the extraterrestrial impact model to interpret the biota mass extinction at the Cretaceous/Tertiary event. In the meantime, the nuclear analytical techniques for platinum group elements have been significantly improved.