You have massive plates believed subducting under the trenches. So how come one weighs less over the trenches? Massive amounts of water subducted into the earth beneath the trenches, or beneath the dense subducting tectonic plates? It seems easier to believe somethings wrong with the tectonic plate theory.
Its interesting however that Coragyps agreed that water is the believed culprit in respect to the tectonic plate theory.
question.
what happens on the other end of the plates? the bits that are separating?
what happens on the other end of the plates? the bits that are separating?
The earth is trying to equalize so they are moving away from the mid-ocean ridges. As it floats away toward the trenches more lava outpours to the mid-ocean ridges.