11 February, 2004
The multichannel streamer was secured back on deck late last night.
After nearly six days of seismic work we would be heading south, back
toward Beaufort Island and with luck open water to continue the
multibeam survey. During the last hours of the seismic work, the ship
went through some heavy ice conditions and at one point the streamer
was pulled over some of the ice that had floated into the wake behind
the ship. No damage was done, and we were able to finish the last of
the planned shot lines.
By the start of the AM shift, the marine techs had already begun to
clean and disassemble the air guns. Each gun was taken apart, washed in
fresh water and laid out on cloth to dry. Parts of the guns are made of
dissimilar metals. When these are in contact with one another in the
presence of salts from the seawater and air, there can be corrosive
reactions with the metals that can ruin those parts of the guns.
When the guns are reassembled, the marine techs lubricate the O-rings
that maintain the pressure in the firing chamber. After the guns are
put back together all opening that might allow dirt or water to enter
the working parts of the gun are sealed with duct tape. Jay Ardai,
Steve Ager and TJ Hurlburt took the guns apart making sure to keep all
the parts of one gun separated from another. The pile of parts from
each gun looks like a complex puzzle that they can put together with
great efficiency.
All the equipment on the ship is checked and maintained daily. The
smell of paint and cleaning solutions are always evident somewhere on
the ship. At the end of each shift change, and a crewmember and the
captain or mate do a walk through of the ship from the bridge to the
engine room. All main systems are checked. The new pilot on watch waits
for the mate's confirmation that all is OK and records the time in the
ship's log.
Inside and outside doors are lubricated and locks checked to see if
they work properly. The crew is constantly finishing one task and
moving to the next. It is hard to believe that the Palmer is over tem
years old. It is so well maintained it still looks new. Even with all
this attention to detail, sometimes things break. During dredge #5 the
main bucket on the dredge broke completely off. When the dredge was
brought on deck all that came aboard was the metal A frame and the
winch cable. There was no indication from the winch room that the
tension on the cable had been too high. It may have hit something as it
was dragged across the seafloor that caused it to break. No one was
sure how or why it broke, but there was plenty of speculation. Pictures
of the broken dredge were taken, jokes shared and then Jesse Doran and
Jenny White prepared the backup dredge for try number two.
The second try was a huge success. There were dozens of large rocks and
there was no mud or sediment. Sam Mukasa was pleased with his catch.
All the rocks were carried to the wet lab where the Sam washed each one
and set it out to dry. In addition to a nice cache of rocks, there was
an abundance of organisms. The largest was a sponge over 12 inches in
length and 7 inches across. Brittle stars and other small echinoderms
were in abundance.
It was a very successful afternoon. We headed toward the ice. The wind
from earlier in the week had cleared out areas that had be ice covered
earlier and we were unable to do multibeam work. We would target that
area for the evening and the start of tomorrow.
Who's Who?
Cristina Millan (Martinez) - OSU - From Madrid, Spain and is a graduate
student working toward a PhD in Geology. Research interests are
mineralogy and structural geology. Her thesis is on economic geology.
She has two children 14 and 10 years old. Interests are geology, field
research, and reading, being stuck on a ship. She enjoys sewing, the
outdoors and raveling. She works with Terry Wilson on a variety of
geology projects being conducted in Antarctica. She has been married
for 15 years and living in the US 14 years. Her husband Richard has
been the most supportive person helping to make her dreams for a career
in geology a reality. Richard is a chemical engineer and works as a
project manager for Battelle. She wants women to know that it are
definitely is possible to combine a successful career, raise a family
and pursue an advanced degree.
Joanne Whittaker - Graduate Student, Wellington, NZ
Jennifer Nice - University of Texas, Dallas - 21 year old from Dallas,
TX. She just received a BS in Geosciences from the University of Texas
at Dallas in December. She is in Antarctica taking the semester off to
decide what to do for her masters that she will start in the fall. This
is her first trip south of the equator and likely the first time in
negative temperatures.
She like the outdoors, camping and road trips. She doesn't understand
why no one else on this cruise likes fried pickles. She will be getting
married just a few weeks after returning from Antarctica. She has an
older sister who is a teacher, her mom is a nurse and her dad is an
amazing person who pulls trees out of the ground in his spare time.