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Frank wrote:

> The correct expression, of  course, is "relative sea level". The Baltic is
> shrinking and Sweden and Finland  are gaining land area every year because
> the
> land up there, which bore the  greatest burden of the European ice sheet
> in the
> last glaciation, is still  rebounding and rising rather rapidly. So
> "relative
> sea level" is falling. The  same thing is happening to Hudson Bay in
> Canada.

If you visit the Churchill, Manitoba region of Canada, you will find a spot
where the British Navy installed a very large iron ring into the rock for
mooring ships. This was done around the 1700's. When it was constructed, it
was, according to our guide, right at the shore. Now it is a few hundred
yards away from the shore. The isostatic rebound in the Hudson Bay area is
quite dramatic. I wish I could remember more details about the spot but it
has been close to 30 years since last I visited it. If my memory serves me
right, the iron mooring ring is near Fort Prince of Wales, which is across
the Churchill River from the modern community.  The Fort itself is well
worth the visit.

Robert


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