白垩纪末期：急剧边界还是渐进转变？

The end of the cretaceous: sharp boundary or gradual transition?

出版信息

Science. 1984 Mar 16;223(4641):1183-6. doi: 10.1126/science.223.4641.1183.

DOI:10.1126/science.223.4641.1183

Abstract

Evidence indicates that the Cretaceous-Tertiary boundary is very sharp, and, within the limits of resolution, it is apparently synchronous at the various boundary localities. Arguments to the contrary, particularly those of Officer and Darke, are shown to invalid.

摘要

有证据表明，白垩纪-第三纪界线非常陡峭，而且在各个边界地点，显然在分辨率的限制内是同时的。与相反的观点，特别是奥弗和达克的观点，被证明是无效的。