OK, I'm thinking the north pole at the time would have been a seven million square km blanket of solid ice, 2km thick, underneath a seven million square km, 100 km thick blanket of granite (roughly circular, about 3000km diameter).
Maybe.
Its edges would have been assaulted by the rest of the wreckage and devastation from the breaking deep fountains, but toward its center I can't think that much would have changed, not right away, I guess except for all that drenching rain? But wouldn't it have been snow?
At rupture, it would have been all supercritical.
Somewhere near the 40th parallel. When the distribution of mass shifted on the surface, the conservation of angular momentum reacted by making the equator the ring with the greatest average mass cross referenced against the distance from the core of all the stuff.Bottom line, what are you saying? Instead of the north pole, where should we look to see the residual effect the Flood made at the north pole?
Thus, the Himalayas migrated from where they were formed to near the equator and the poles of the time were replaced with what were subtropical areas, which is why we find mammoths in the ice and fossils of tropical species in the arctic circle.