Overriding versus subduction

Fig.1.  "Overriding" - the legacy of Pacific opening.  Hardly as thick as a coat of paint in relative terms, the continental crust of the Japanese Islands sits on the upper mantle which, like a gigantic mudslide, is creeping left-to-right over the lower mantle.  Even in this still image there is no mistaking the wall of gravitational collapse as the Japanese Islands continue to detach from the mainland and override the mantle of the Pacific.  There is an additional northerly remnant component of movement as the rotational coriolis force that once swivelled open the Pangaean hemispheres, detaching the Americas and the trailing Russian Peninsula, ripped open the Western Pacific margin. (Google Earth image vertical exaggeration x2)

 

"Overriding."   As Plate Tectonics now explicitly acknowledges, the immediate dynamics of what is happening here is overriding - the crust on the left is overriding the crust on the right.  The question however is, what are the driving forces?  In Earth Expansion it is the extrusion of the Pacific bubble and the consequent gravitational correction of the ruptured hemispheres as their crust rides over the extruding mantle to accommodate the increasing size of the planet.

Plate Tectonics however does not recognise the dynamics of crustal rotation as an active ingredient in its paradigm, and far less the dynamics of active mantle extrusion - it only recognises passive mantle extrusion in response to the driving force of subduction.  In the Plate Tectonic model the overriding that we see in the figure is consequent on a so-called "cold descending mantle slab" from the eastern (right-hand) side underneath the wall of mantle override in the figure.  Never mind that this 'cold" slab must actually be hot enough to convert to eclogite so it can be dense enough to sink, and that to do this it has to be "forced down" by the lithosphere on the left into crustal regions hot enough to do this, when by all logical considerations once heated to this degree it would tend to rise back up.

..Unless, ..(as Plate Tectonics says).. it is prevented from doing so by the juggernaut of the following mantle plate from the ridge (from the right in the figure)as it collapses to give "ridge-push", a push from the side as it were, to aid the vertical push on the slab by the lithosphere on the left.  However the nonsense of this is manifestly clear since any dynamic of so-called 'ridge-push' is consequent on the driver of subduction.  It would be like saying the caboose at the end of the line of carriages is helping to push the train along.

And that, precisely, is by analogy what Plate Tectonics is saying.  And what its proponents expect you to believe because it is underwritten by institutional kudos.   Get it?  Their institutions support them for saying this, and give them prizes for saying it too, the proponents even in their enthusiasm ("..the- caboose-pushes-the-train")  recommending themselves Nobel Prizes.

(Well, ..come on, ..you have to laugh.)