Can radiometric dating be used with metamorphic rocks
Wilson was impressed with the similarity of thick sequences of Cambrian-Ordovician marine sediments to those of modern continental shelves.
Tuzo Wilson in 1966, when he proposed that the Appalachian-Caledonide mountain belt of western Europe and eastern North America was formed by the destruction of a Paleozoic ocean that predated the Atlantic Ocean.
Flemish mapmaker Abraham Ortelius noted that the coastlines of the continents appear to fit together.
He suggested that the continents were once joined and that the Americas were "torn away" from Europe and Africa.
However, these shelf sequences contain two distinct fossil assemblages on opposite sides of the mountain chain.
The assemblages on the western and eastern sides of the mountain chain were named the Pacific and Atlantic realms, respectively.