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

100 EARTH S SHIFTING CRUST
picture of the facts, Mr. Campbell has made a very rough
calculation, as follows:
Assuming that the lithosphere is composed of granite
that has a
weight of 166 pounds to the cubic foot, and the asthenosphere con-
sists of soapstone with a weight of 169 pounds per cubic foot, the
lithosphere being three pounds lighter per
cubic foot than the
asthenosphere, it would float in the heavier asthenosphere leaving
1.775% of its volume above the surface of the asthenosphere, and as
the is lithosphere assumed to be forty miles deep in this case, then
1.755% of forty miles would be .71% of a mile above the top of the
asthenosphere. That is, the soapstone molten asthenosphere would
rise up into the fault to within three quarters of a mile of the surface
of the earth. . . . (66).
Summarizing his general thoughts regarding the effects of
an equatorward displacement of a crustal sector, and the
hydrostatic balance of the crust itself, Mr. Campbell has
remarked:
I think you should stress this point, for, while the geophysicists
have seen faults in the earth's crust, and have seen many of these
faults that they knew had been filled up from below, they didn't have
any logical solution of what caused the faults, nor did they connect
the faults with the formation of our mountains (66).
5. The Effects of Poleward Displacement
In the poleward displacement of sectors of the crust, com-
pression, instead of extension, would be the rule. The magnitudes
and the distribution of forces, and the time element,
would, of course, be the same. Otherwise, the effects would
be very different.
We should have, in the first place, some folding of the
rock strata. As with the fractures, the precise locations of the
rock foldings, their number, and their magnitudes would be
controlled by the amount of the displacement locally, the
local variations of crustal strength (which would be less
where geosynclines already existed), and the distances of the
areas concerned from the central meridian of movement.