The Earth's Shifting Crust by Charles Hapgood - wire of information

In another place he says:
THE MOUNTAINS 127
. . . Mars appears to have no high mountains, and it is difficult to
understand this unless it had some initial water. (In order for it to
remain without mountains no folded mountains must have been
formed subsequently; but this is another subject.) The formation of
Mars and its surface followed a course similar to that of the earth
So we see that Mars and the earth appear to have followed
similar courses of development. They are similar in chemical
composition and in structure, and have similar atmospheres.
There are, apparently, only two important points of differ-
ence, other than size. Mars, unlike the earth, has very little
water, so that its polar icecaps are thought to be no deeper
than hoarfrost, and disappear entirely in summer; and Mars,
unlike the earth, has no folded mountains.
A thought-provoking fact: on Mars, no great icecaps- and
no folded mountains, no volcanic phenomena, no fault
mountains! Surely this is no coincidence. Surely, it is suggestive
of the fact that these features on earth have been the
consequence of displacements of the crust, and that these dis-
placements have been owing to the agency of great polar ice-
caps. It might seem, at first glance, that the absence of folded
mountains on Mars might be explained by the absence of
deep accumulations of sediments produced by the weathering
of rocks under the action of water, and the accumulation
of these sediments in geosynclines with subsequent folding,
but we have seen that geologists do not claim to explain the
original creation of the geosynclines, nor to identify the source
of the compressive stress that brings about mountain folding.
ii. Undisturbed Sections of the Crust
It has been objected that over extensive areas there are rock
formations that appear to have been little disturbed over
very great periods of time. If the crust has been displaced