中生代末期发生的恐龙绝灭事件被认为是当代10大科学之谜之一。近十多年来,由阿尔瓦雷斯等人提出的《碰撞理论》以及由此推动的一系列研究成果,如周期性的地外撞击和绝灭等给地质古生物学中许多传统观念以巨大冲击,并发展成为科学史上一次真正的大争论。可以说,自莱伊尔和达尔文时代以来, The end of the Mesozoic dinosaur extinction event is considered one of the mysteries of the contemporary 10 science. In the past ten years, “collision theory” proposed by Alvarez et al. And a series of research results promoted by it, such as the cyclone extraterrestrial impact and extinction, give many traditional concepts in geological paleontology with huge Impact, and developed into a real big debate in the history of science. It can be said that since the days of Lyle and Darwin,