Comment on 'When did the Anthropocene begin? A mid-twentieth centuryn boundary is stratigraphically optimal' by Jan Zalasiewicz et al. (2015),n Quaternary International, 383, 196-203

摘要

We offer a comment on the paper: "When did the Anthropocene begin? A mid-twentieth century boundary is stratigraphically optimal" by Jan Zalasiewicz et al. (2015), Quaternary International, 383, 196-203. We consider this proposal in the context of the procedures and terminology employed by the International Union of Geological Sciences which underpin the formal designation of chronostratigraphic units. Our conclusion is that there is no practical value in establishing the lower boundary of a new