Earth Sciences133
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The Landscape We Are Up Against
We have drilled a second core through the ice to bedrock, and are done at our first site. Unfortunately, the helicopter that we need to move the heavy pieces to our second planned spot is down for regular maintenance until next Monday, June 21. That means the team must wait it out at the relatively sheltered “saddle…
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Drilling the Glacier to Bedrock
Yesterday we completed our first ice core at the Northwall Firn Glacier, down to bedrock, penetrating 30 meters through the glacier, until we hit bottom. The ice seems to contain visible layers all the way down–a sign that yearly accumulations have been preserved, instead of melding into each other. This means we should be able to…
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Surveying the Sea of Marmara to Understand Faults and Earthquakes in Turkey
In 1999, an earthquake along the North Anatolian fault killed some 30,000 people in western Turkey. There is some evidence that another segment closer to the densely populated city of Istanbul could be next to rupture, which could create worse devastation. A team of Turkish, American and French scientists are on a Turkish research ship…
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A Dry Mediterranean
The Crotone Basin accumulated sediments for nine million years before the forearc uplifted above sea level. Each layer of sand, clay, and conglomerate in the basin contains information about the environment at the time that layer was deposited. About six million years ago, halite and gypsum were deposited in the Crotone Basin. Geologists refer to…
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Finally on Ice
With the blessing of two wonderful days of clear weather, all our equipment was moved into place this morning. The ice coring can now begin. We anticipate finishing the drill assembly today and drilling by mid-morning tomorrow at three sites on the Northwall Firn glacier: the two “domes” and the saddle, where the team will…
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Travels through the Crotone Basin
The climate of the Crotone Basin is marked by cold, wet winters and hot, dry summers. We arrived last year, on our first trip, in the middle of a six-month drought that lasted from April to September. I love how life figures out a way to flourish. Flowers in a riverbed; Snails on a thorn…
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On Our Way to the Top
This morning we were at our staging area at the Grasberg mine at 5 am, and were able to use the B3 helicopter to get ourselves set up. First trip up, our colleagues Keith Mountain and Vladimir Mikhalenko went to what we call the “saddle camp”—a spot between two peaks—where we will stage the first…
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Ice Drills Retrieved
With the drills essential to our work apparently lost somewhere in transit, Lonnie and I finally backtracked to Jakarta–a five-hour flight–and found them sitting in an airline warehouse! Within 24 hours, we had them shipped to our staging site, and now we are ready to go.
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Getting Under the Surface
With many questions still unanswered about the oil spill in the Gulf of Mexico, Earth Institute staff have been providing perspective to the public and press on many aspects, from the spill’s magnitude and spread, to the technologies available to abate it, and its long-term policy implications. Marine geophysicist Tim Crone was one of the first to openly question official estimates of the oil’s rate…
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