North America rotates anti-clockwise away from the Mid-Atlantic Ridge towards the Pacific Plate. It is constantly displayed by NASA. The drift vectors are in harmony with the convection cells and mantle currents within the globe. Comparing with real data, an approximation for the drift can be made:
In this way (please compare with data at the NASA website) we can see the present situation, and predict how the continent will move relative to the main lines. Especially, former position of main points of the convection cell system can be traced, explaining geological features in those areas in context with other circumstances during those times.
Published by Steingrimur Thorbjarnarson
I am a geologist, graduated from the University of Iceland, and taught geology for a few years. I have gained some knowledge about Earth's inner structure, so I provide this website as my contribution to answer one of the greatest questions remaining within the realm of geoscience. Experiments show that the mantle should form convection rolls when close to the melting point. I took this literally, and calculated the dimensions and shape of these mantle convection rolls. Then I compare that model with the surface. This makes it possible to provide many interesting examples about geology found on my blog.
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Magic Magma 