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

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EARTH'S SHIFTING CRUST
fact. According to Schuchert, North America has been sub-
merged no less than seventeen times (gGgaiGoi). According
to Humphreys, the sea has covered as much as 4,000,000
square miles of North America at one time (231:613).
Termier argued that the sedimentary beds composing the
mountain ranges extending eastward from the Alps to Cen-
tral Asia, which were laid down under the sea, would have
required that the ancient Tethys Sea, in which they were laid
down, should have been about 6,000 kilometers (or perhaps
4,000 miles) across (419:221-22).
Geophysicists tend to argue that such seas, which clearly
did exist, were merely shallow affairs, invasions of the conti-
nents by the ocean owing to some unknown cause. The positive
evidence for this, based on the apparent absence from
the sedimentary rocks of sediments formed in the very deep
sea, has a fallacy in it, as will be made plain later. The positive
evidence against the assumption that all these seas were
shallow seas is, on the other hand, enormously strong. Umb-
grove, for example, remarks:
. . . Not only have parts of the continents foundered below sea-
level since pre-Cambrian times but they have even done so until quite
recently, and their subsidence occasionally attained great depths! The
present continents are but fragments of one-time larger
(430- 3)-
blocks. . . .
A particularly important example of such foundering
seems to have occurred in the North Atlantic, off the north-
eastern coast of the United States. It has been found that the
sediments that compose the northeastern states were derived
in ages past from a land mass to the eastward in the present
North Atlantic. This could have been Brooks's continent of
North Atlantis.
Some geologists, cowed by the geophysicists, have at-
tempted to argue that these sediments might have been derived
from a land mass situated on the present continental
shelf, but the argument fails from every point of view. Brewster,
for example, comments: