12 February, 2004
After breaking the dredge yesterday, we were looking forward to a calm
quite day of catching up with the multibeam survey. Throughout the
cruise we have been at the mercy of the ice as to where we would be
able to get survey data. Just about midnight, the ship moved into an
area that had been previously too congested with ice to do good
multibeam work. Today it was clear, so we went looking for seamounts.
What a surprise. As the ship made its back and forth tracks over the
seafloor, a map of orange and yellow began to emerge on the monitors.
We saw large circular structures randomly dotting an otherwise flat and
uninteresting seafloor. At first glance, these looked like the bases of
volcanoes that had the top of their cones completely sliced off. As the
data continued to come in, it became apparent that the circles were not
elevations on the seafloor, but circular depressions in the seafloor.
It was time for speculation and hypotheses about their origin. We
called this new area the Pepperoni formations.
Even though the ice had cleared, there was plenty of ice in the air.
Snow settled on the decks of the ship adding just enough white to stir
thoughts of snowball fights and snowmen. The snow blanketed most of the
decks, except for the back deck that is the main work area for the
ship. The back deck uses warmed antifreeze circulating in pipes under
the deck to keep is and snow from accumulating. This helps keep
everyone safe when working with equipment in the back deck.
Most of the morning was spent surveying the "Pepperoni" and then about
noon we headed north toward Franklin Island. By 1:30 PM we had the
dredge back in the water for the first of two dredges for the day. Each
time we dredge we hope to bring up rocks that will give us information
about the age and composition of the seafloor volcanoes that are focus
of our dredge work.
The dredge came on deck intact and full of rocks. Jesse Doran
positioned the dredge the over the work area on the back deck and
reached into the top of the dredge and pulled out an ice fish over a
foot long. Its mouth was open, with large round eyes, white gills and
thing black body. He passed the catch of the day to me, and I held it
as everyone took a look before heading to separate out the rocks from
the debris.
As I held the fish, it moved slightly. I took it into the hydro lab and
placed it into one of the sinks and filled it with seawater. Within
seconds the gills were moving rhythmically, and then the fish began to
slowly swim around the sink. Half of the people on the ship never see
what is caught in the dredge because they are sleeping or nature of
their work does not permit them to leave during their shift. Jenny
White was able to locate a large glass aquarium and filled it with
seawater. We placed the organisms that had been caught in the dredge in
there for the night. In addition to the fish we had two large sponges
and a starfish that was about seven inches from arm to arm. During the
course of the night everyone was able to come and see the aquarium.
Over the course of the night, many small organisms moved out of hiding
among the spicules of the sponges. There were worms, sea spiders, small
snails that slowly moved out into the open. There were over a hundred
small organisms that were calling these sponges home that we could see.
The sponges were like a small forest that these tiny organisms lived in.
We continued the multibeam survey throughout most of the evening. The
marine techs finished getting the guns ready for a possible deployment
of the seismic sometime tomorrow.
Who's Who.
Mike Carpenter - Raytheon - Electronics Tech - Hometown: Reepsville, NC Presently live in: Danville, CA
Education: BS Electrical Engineering, NC State University Work history: 15 years, broad experience in industry and government
Dean Klein - Raytheon - IT Computer Services - Ten years with Antarctic
programs. Second Cruise on Palmer. He has worked at McMurdo, Palmer and
South Pole Stations. He has a degree from the University of Georgia in
education. He began working in Antarctica with black hair and now has
gray. He is fascinated with the research and science that goes on here
and considers Antarctica to be the canary in the coalmine for the world
He is married and has two chocolate labs. The brown bombers don't even
know how to chase balls yet. His wife is studying to be a physician's
assistant and is involved in a number of volunteer groups in Ashville,
North Carolina. He got involved in computers working with the forest
service and then worked into the IT field when he had been working on a
recreational use study in the US. The reason that he is here in
Antarctica is because he had worked with a person that had actually
signed the Antarctic Treaty.