It might be dangerous to make inductions about the past condition of the continents based purely on the particulars of their current shape. My head fits inside a microwave. Does that mean my head was once joined to a microwave?
However John, I am really excited about the direction of this research. What is beneath the dyocrust in this account - do you consider the Earth to be vertically infinite as well as horizontally infinite? Also, do you still subscribe to the theory of Universal Acceleration, and if not, what is your explanation for the mechanism of gravitation? It is interesting that you consider there to be mantles of Aether within the Earth. Do these have a relation to Universal Acceleration?