2 January, 1999
A gorgeous day in Beacon Valley. Plus 10 and light winds.
Dave, Adam and I go to fill in the pits across from 053, the camp from the
University of Washington. They have dug their own pit, everyone is out in
it. Jacko has his head in a an Eagle Creek Duffle bag - this shields the
screen for their GPR or ground penetrating radar. Marchant, Sugden and
Schluchter tried to use GPR in Beacon last year and were not too
successful. After lunch I go over and talk to Ron Sletten, Mike Mellon and
Jacko Petronen. They are unbelievably friendly and forthcoming about what
they are doing. I would like to spend more time getting to know some of
them. It seems so convenient that we are all here in Beacon, but I think
that the tension is too great.
053 has installed a meteorological station to measure vapor transport to
see if they can model what is going on with the ice. Two Russians will be
coming over to drill the ice in the hopes of finding old bacteria. They
want the ice to be as old as possible naturally. This seems to be one of
the biggest "controversies." Is the ice old? Well the overlying ash
certainly looks in place in most of the pits. The fabric will tell from
which direction the ice came, and the orientation of the clasts that are
imbedded also support Dave's idea that the ice is old and that it is
glacier ice. The one thing that does not support Marchant's hypothesis is
the foliation of the ice - it is parallel to the troughs - this might mean
that the ice is secondary ice. I am actually jumping the gun here - Dr.
Marchant had left and returned to Boston before we noticed the foliation
issue. I wonder how this will play in Boston!
053 lets me know that in the Arctic, polygons form by convection currents.
Dr. Marchant has a new idea about how these may form, but he is insisting
on keeping secret from us or at least me! One of the things that is
interesting to me is that I have learned more about the science here from
the University of Washington camp than from the one I am assigned to! And I
don't even really know the Washington group either. I do not mind letting
everyone know how frustrating this is.
Tomorrow we have our resupply helo and Ron Sletten is supposed to go back
to McMurdo - perhaps to meet Bernard Hallet.
Sublimation of the snow occurs before our eyes - truly astonishing. It is
just gone! Vaporized.
For dinner we take 4 steaks, 1 pound of shrimp and one can of chicken and
make soft tacos and have some frijoles with them too. A great meal!
Adios from Beacon Valley.
Hillary
Hillary Tulley
Niles North High School
9800 Lawler
Skokie, IL 60077
847.568.3292 office
847.568.3166 fax
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