[winoneforthegipper]

Mike, that’s the catch. For right now Iberian landmass lies on the southern reaches of Eurasian Plate which we know is moving in an opposite direction of the North American Plate as evidenced by the Mid Atlantic Ridge.

So I am still trying to grasp what mechanisms would change and or present themselves.

Great question!

Errant what would be your take?

[Errant]

Guessing the Mid Atlantic Ridge will continue pumping new material to the surface (i.e., the Atlantic will not close up, IMO). If the calving continues, which I think it will, the movement may be somewhat rotational, similar to the Nazca plate.

Volcanic activity / mountain ranges occur in front of the subducting zone / plate, and volcanic activity can also occur as a result of rifting apart.

If the North American plate bumps into Europe, something much more cataclysmic will be the cause. ;) As you know, my pet theory is a cyclic build of heat within earth (from tidal force and other), working its way up to the surface of the planet, and the increased geological activity worldwide, evidence. We had 75 volcanoes erupt in '12, we're already above 60 for '13.

The recent discovery of a larger than first determined hot spot in the Southern Pacific, and the magnetic pole drift picking up speed are other evidence.