Base map of the Newfoundland Appalachians showing tectonostratigraphic zonation, simplified surface geology, and the location of the three seismic reflection corridors (numbered black lines) used by LITHOPROBE.

There also is a portion of this mountain belt in West Africa, namely that missing eastern part of eastern Newfoundland whose parentage makes it African. That's what happens when you get into global-scale splitting. By the way, the central portion of Newfoundland is oceanic in origin (remember the Iapetus ocean?), and the western third North American.