Very nice, but the article is over 20 years old. No serious scholar today believes in complete uniformitarianism.
Stephen Jay Goulds theory of "Punctuated Equilibrium" has completely displaced it.
This article is so out of date that the daring young Dr. Gould cited for his early articles, has since become one of the most famous Natural Scientists of all time, and has died of old age.
So9
Nevertheless, I liked the way he focused on the 'bone-islands' of Northern Siberia. That was the one compelling data-point in Velikovsky's 'Worlds in Collision'.
Something sure as H*ll happened all of a sudden!