What lies beneath modern New England? Mountain-building and the end of an ancient ocean

When and where did the ancient Iapetus Ocean suture (the most fundamental Appalachian structure) form? Is part of New England made up of ancient African-derived rocks? What is the Moretown terrane? A new study finds new evidence for an earlier closing of the Iapetus that is farther west than previous studies have reported.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/k...