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

NORTH AMERICA AT THE POLE 211
facts about the relationship of the American and Scandi-
navian glaciers.
It has been shown, by Flint (375:175) and others, that
there is a correspondence in the timing of the phases of
advance and retreat of the ice on both sides of the Atlantic.
This is exactly what we should expect, considering that the
causes of the oscillations, the volcanic dust and the carbon
dioxide, were world-wide in their effects.
But despite this synchronism, there is also an important
difference between the two glaciations: it is clear that the
icecap in Europe underwent proportionately greater diminution
with each phase of the recession after the Tazewell
Maximum. The assumption that the glaciations on both
sides of the Atlantic were in all respects precisely contempo-
rary, that they advanced and retreated equally at equal times,
has now produced contradictions of a very glaring character.
It has placed two specialists, Ernst Antevs and Ebba Hult de
Geer, at odds with each other.
The basis of the contradiction is as follows: The late husband
of Ebba Hult de Geer, Gerard de Geer, was the author
of the so-called "Swedish Time Scale." This is a method of
geological dating based on countings and comparisons of annually
deposited layers of clay (varves) in lakes. De Geer first
developed the method more than a generation ago. In a
number of instances datings established by it have been well
confirmed by the more recent radiocarbon method.
De Geer found that by about 13,000 years ago the Scandinavian
icecap had retired from Germany and England, and
that the ice front lay across Sweden. It is obvious that its
withdrawal from Germany and England must have started
thousands of years earlier. By 13,000 years ago a large percentage
of the whole European icecap was gone. In America,
however, the reduction of the Wisconsin icecap had proceeded
nowhere near so far. Twice again, after this, the
American icecap expanded in the Gary and Mankato Advances.
The great icecap, though thinner, still occupied most
of its original area.