Sunday, February 14, 2016

POSTED: Wednesday, August 3, 2011, 4:19 PM
Ted Daeschler, back at the Academy with specimens. (Photo by Michael Servedio, ANSP)

I got back into Pennsylvania on Friday afternoon, and in checking my GPS unit I could see that we had moved 2,512 miles from our camp on Devon Island. The GPS indicated that the bearing that I could follow to get back to that camp was 353 degrees, almost due north! What a difference those 2,512 miles makes - from a barren, unexplored corner of a huge uninhabited island, to the well-engineered and comfortable surroundings of home. I'm glad that I have the opportunity to experience both.

Personally, I must say that it is a true privilege to camp, walk, and explore in a place as pristine as Devon Island. Why am I so lucky as to have the opportunity to do so? I guess I made a good career choice. The austere conditions may not be for everyone; the barren landscapes of rock, tundra, ice and water may seem boring; the isolation might sound frightening; but all of those things are rare in today's world and represent a challenge that is easy to embrace and cherish.

Professionally, I know that this kind of exploratory work rewards patience and perseverance. The significance of our discoveries will come with time, thorough our work, or the work of others.

Inquirer for Ted Daeschler @ 4:19 PM  Permalink | 0 comments
POSTED: Friday, July 29, 2011, 10:13 AM

The helicopter descended into our remote camp on Tuesday morning as scheduled. Within two hours the four of us and our gear were standing on a makeshift landing strip of limestone rubble to the south. The helicopter departed for its next destination 200 miles northeast, and the four of us stood in the flat empty landscape waiting for the drone of a Twin Otter plane.

With time on our hands we skipped stones on a shallow pond surrounded by a muddy fringe where the clear tracks of a polar bear made us look around with a bit more care. The Twin Otter arrived and we loaded up and lifted off Devon Island by about 1 p.m. Within an hour we were back at the Polar Shelf research base at Resolute, unaccustomed to the buzz of activity and people. Quite a contrast to the last couple of weeks.

As we departed our field camp we flew over some of the same areas that we had examined in detail during our explorations. Though the view from above was a useful geological perspective, our search for fossils requires that we “get our nose to the rock,” a task that requires a lot of hard work. The sore arms and legs from many miles of rugged walking and splitting rock seems an appropriate sensation, as one of the goals of our research is to understand more about the evolutionary origins of these appendages from evidence in the very rocks we were exploring.

Inquirer for Ted Daeschler @ 10:13 AM  Permalink | 0 comments
POSTED: Tuesday, July 26, 2011, 1:01 PM
We're focused on the layered rocks of Late Devonian age that are exposed across this part of the Arctic. We spend our time "getting our eyes on the rocks" to find any fossil material that is exposed on the surfaces. Splashes of color, like the flowers along this streambed, are a welcome relief to the drab, rocky landscape. (Photo from previous expedition by Ted Daeschler)

I’m so sore today. Took a long hike, 10-12 miles, over some rock formations that tend to break up into boulders. Up and down, boulder to boulder. Hard work. But we got to see some rock formations we haven’t seen before and we continue to make discoveries.

Our last day is tomorrow. We’ve had a relatively short season compared to our six other Arctic expeditions, but we really worked this area hard. We covered 35 square miles on foot and surveyed additional areas when flying in by helicopter. Logged 13 fossil sites, meaning there are enough fossils at these sites to log them, to take geographical information, and to collect fossils to bring back.

We’re finding an awful lot of the same creatures we found before: armored fish and lobe-finned fish, but nothing in the limbed realm. What’s interesting is these same rock formations further to the east produced large numbers of a fish called Psammosteus, but there are none here. This shows ecological differentiation. Maybe we’re too far out into the delta system, too far away from the prime area where that type of fish seemed to have lived.

Sandy Bauers @ 1:01 PM  Permalink | 0 comments
POSTED: Monday, July 25, 2011, 6:00 AM
Scree, or talus, is the accumulation of broken rock on hillsides and at the base of rock exposures. This sandstone scree, encountered on an earlier expedition, is particularly challenging to traverse as we explore for fossils. River crossings are also a hazard, and we won't attempt it if possible. (Photo by Ted Daeschler)

The weather has deteriorated to normal Arctic conditions. Winds are gusty at 15 to 20 mph and it’s cold. I’m wearing a wool hat and gloves. Sleet is hitting my tent. We got pretty spoiled with the milder weather earlier.

The rocks here really augment the rocks we have in Pennsylvania. Between the Pennsylvania research and the research here we are getting a good picture of the different animals that lived in the Late Devonian period. The types of environments they lived in.

This place is full of a lot of small discoveries and only a few big discoveries. We’ve had a lot of big discoveries both in Pennsylvania and the Arctic and have lots of continuing work to do.

Inquirer for Ted Daeschler @ 6:00 AM  Permalink | 0 comments
POSTED: Sunday, July 24, 2011, 6:00 AM
Part of the attraction of our work in Nunavut is the fact that no one has ever systematically explored for fossils in these areas before. The rocks are generally well-exposed, and each day we can look forward to the potential of making discoveries that represent new knowledge and help us understand the history of life on earth. (Photo from previous expedition by Ted Daeschler)

The team is doing great. It's just the four of us -- Neil Shubin from the University of Chicago, Marcus Davis, a professor in Georgia, and Mark Webster, a professor at the University of Chicago who studies trilobites -- and we’re getting along well, which is important.

Every day we make a plan and go out and do what we need to do. We keep a regular schedule. We get up at 6 or 6:30 a.m. We need to check in by radio with the research base at 7:30 a.m. every day. Then we start to work at 8 a.m. We come back to our base camp at 5 or 5:30 p.m., prepare dinner and eat it around 7 or 7:30 p.m., then we’re in bed by 9 or so. There’s not a lot of entertainment up here. We read books. Neil brought a Kindle.

Tonight we’re going to have pasta with red sauce. We make some really good food. We do pay a lot of attention to food and to preparing the food. Usually we have pasta or a chili dish. Big one-pot foods, comfort foods. We eat lots of chocolate, energy bars and coffee. For breakfast we have coffee and granola.

Inquirer for Ted Daeschler @ 6:00 AM  Permalink | 0 comments
POSTED: Saturday, July 23, 2011, 6:00 AM
We walk miles each day in search of fossil fragments weathering from rock outcrops. When we find some, we try and discover the layers that might contain more, better-preserved fossils. This small excavation helps us identify when further effort is warranted. (Photo by Ted Daeschler)

It’s terrific weather here, startlingly warm -- in the 50- to 60-degree range. More importantly, it’s clear and sunny. Hard to sleep because the sun is shining all night long, even though we have blinders to put on.  I’m a little tired. The sun hasn’t gone down since I’ve been here, and it won’t go down the whole time I’m here.

I did some calculations with the GPS, and we’re 700 miles above the Arctic Circle and 900 miles from the North Pole, so we’re about halfway between the circle and the pole. We’re so far north that the sun doesn’t go down for months.

The landscape is rocky, and when I get up high I get great views of the sea. There is pack ice in some places and open water in others. That is appropriate for July. People back home ask about global warming, but we cannot be the judge of that. When we come to the Arctic from year to year, we do not go to the same place. We go to different locations, so we can’t compare the amount of ice and water from year to year.

Inquirer for Ted Daeschler @ 6:00 AM  Permalink | 0 comments
POSTED: Friday, July 22, 2011, 6:00 AM
The team spends a good bit of time on rock outcrops like this one, which they explored on a previous expedition. The idea is to prospect for fossil material that has eroded from the layers of sandstone and siltstone that were deposited by stream systems about 375 million years ago, when this area was near the equator. (Photo by Ted Daeschler)

It’s been a very good couple of days so far in this remarkably remote and rugged terrain. We’ve had exceptionally good weather, in the 40- to-50 degree range, but no rain and no strong wind. And lots of sun. You wake up in the middle of the night, and it’s sunny. At this time of year the sun shines all the time. Maybe it will help me get over the cold I caught before I got here.

Even though it’s only been two days into the trip, I’ve already collected a few very interesting fossils. The plan is to go back to the same site tomorrow or the next day and spend the whole day breaking rock and excavating and seeing what else I might find.

These fossils won’t make front-page news, but they are scientifically very interesting in filling in the story of animals that lived in the Late Devonian Period. That is the window of time we are working with here. Tiktaalik roseae, which I found on an earlier expedition, was one side of that.

Inquirer for Ted Daeschler @ 6:00 AM  Permalink | 0 comments
POSTED: Thursday, July 21, 2011, 6:00 AM
On a previous expedition, a team member unhooks a net filled with supplies from under the body of a helicopter. (Photo by Ted Daeschler)

I’m sitting in my tent in the middle of nowhere. You can’t believe what I’m looking at right now. I’m on Devon Island, the largest uninhabited island on earth. This is an amazing place. The terrain is almost like Mars. It’s just rocks and cliffs.

Devon Island is located in Baffin Bay in Nunavut. The island has northern piece called Grinnell Peninsula. We are on the eastern edge of Grinnell Peninsula, about 5 miles south of Tucker River. We’re camped at a river in a valley, but the river and valley don’t have a name. There is so much land up here and no one has given it names. It’s likely no one has ever been in the valley we are exploring. The Tucker River has been explored a little by geologists. But where I am is untouched by any scientist.

Everything went smoothly earlier this week getting from the research base at Resolute Bay to our remote destination. The people who do logistics for the base were able to organize and orchestrate the process of inserting us into the research site that we had carefully mapped out ahead of time.

Inquirer for Ted Daeschler @ 6:00 AM  Permalink | 0 comments
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