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Originally posted by B2X2L
...... It is fact that the continents were once one huge land mass that broke apart.
I remember reading decades ago about crustal displacement. The idea really interested me, and I was surprised to see that even Einstien had given the idea a thumbs up at the time.
I do wonder however if plate tectonics actually might keep a crustal shift from happening. In other words: if there were no individual plates, and the Earth's crust was one single piece, would a geological shift be more likely?
Originally posted by stereologist
the notion of isostacy had not been worked out well. This process avoids the build up of ice making the rotation of the Earth unstable.