What effect would trillions of tons of additional water have upon the surface of a planet
Lets say that the flood was to the height of Everest (8.8 km).
Why do you believe that the weight of the water would be of any significance compared to the weight of the crust itself?
quote:
Plate thickness also varies greatly, ranging from less than 15 km for young oceanic lithosphere to about 200 km or more for ancient continental lithosphere (for example, the interior parts of North and South America)
USGS
I just don't see why you come to the conclusion that the weight has anything to do with it. I am perfectly willing to accept that I am wrong, just from my view it would do next to nothing. From simple logic (and no geology education) I would be tempted to think that extra weight would only tend to slow the movement down.