Not by Fire but by Ice
THE NEXT ICE AGE - NOW!
Updated 17 March 2006
Glacier Surges Alaska
17 Mar 06 - There is evidence that the McGinnis Glacier, a little-known tongue
of ice in the central
Alaska Range, has surged. Assistant Professor of Physics
Martin Truffer recently noticed the lower portion of the glacier was covered in
cracks, crevasses, and pinnacles of ice--all telltale signs that the glacier has
recently slid forward at higher than normal rates.
Truffer, of the Geophysical Institute's Snow Ice and Permafrost Group, is having
difficulty finding evidence of the glacier's history. He says the glacier hasn't been on
anyone's radar screen for some time. Much of what has been written about the
glacier is that it was covered with debris after several landslides broke loose from
Mountafter the 2002 Denali Fault earthquake. In fact, that's what McGinnis
prompted Truffer to explore the glacier just a few days ago on a recreational
snowmachining trip with friends.
(This does not mean that Alaskan glaciers have begun advancing. Some glaciers surge, and then retreat, for reasons that are still being determined.)
See some great photos at: http://www.gi.alaska.edu/~truffer/McGinnisSurge/
See full article at: http://www.eurekalert.org/pub_releases/2006-03/uoaf-cda031506.php
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See also Greenland Icecap Growing Thicker
and Antarctic Icecap Growing Thicker
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