Tectonics and Sedimentation
Located at the top of the globe, beneath the Arctic Ocean, the Amerasia Basin is poorly understood. This large depression in the ocean floor was created during the Mesozoic Era, the age of the dinosaurs, but how the tectonic plates shifted to open up and create the basin remains a puzzle. Professor Bernard Coakley and a 12-person crew currently aboard the research vessel Marcus G. Langseth hope to find the fossil plate boundaries associated with the basin and recreate the birth of this mysterious feature. 
Follow Professor Bernard Coakley on the R/V Marcus G. Langseth.
University of Alaska Fairbanks scientist Michael Whalen is part of a team of distinguished scientists who recently compiled a wide swath of evidence striking a definitive blow in the ongoing battle over what killed the dinosaurs.
FAIRBANKS, Alaska—An ice-free Arctic has the potential to unlock a wealth of resources that have long been inaccessible, buried beneath the ocean floor. This year, Russia nabbed a slew of attention for its claim that the Lomonosov Ridge is simply an extension of the Siberian continental shelf, an area believed to be rich in oil and gas reserves.
About 65 million years ago, a massive disruption led to worldwide extinction of dinosaurs. The impact of a giant asteroid created massive tsunamis and spewed forth a global cloud of carbon gases that altered Earth’s atmosphere and blocked the light for weeks, possibly years. In recent years, that impact event has been linked to a 112-mile-wide crater, dubbed Chicxulub, on the coast of Mexico’s Yucatan Peninsula.
Students participating in a geology field camp with University of Alaska Fairbanks faculty found the fossilized footprint from a small meat-eating dinosaur in Denali National Park in June 2005. That fossilized footprint is the first concrete evidence that dinosaurs once roamed Alaska's Interior. What did the Interior and the rest of Alaska look like eons ago when dinosaurs covered the landscape? The answer lies within fossilized plants and the characteristics of rocks that contain fossil footprints.
Students participating in a geology field camp with University of Alaska Fairbanks faculty found the fossilized footprint from a small meat-eating dinosaur in Denali National Park in June 2005. That fossilized footprint is the first concrete evidence that dinosaurs once roamed Alaska's Interior. What did the Interior and the rest of Alaska look like eons ago when dinosaurs covered the landscape? The answer lies within fossilized plants and the characteristics of rocks that contain fossil footprints.
Some experiments never end. Especially ones involving plastic objects released in the far north.
In late July 2011, Paul Boots, a supervisor at an oilfield on Alaska’s North Slope, found a small, yellow plastic disc on a creekbed. Scientists 30 years ago tossed the disc into the sea as part of a study on arctic oil spills.
Boots, who works at the large gravel pad that hosts the Badami oil field, was with his coworkers on an annual cleanup day along a nameless creek just west of the gravel pad.
“I was enjoying a beautiful day and strayed a bit farther than most in my search for ‘fugitive emissions’ (everything we pick up has been blown off of our pad),” he wrote in an email. “I found the disc about 50 yards from the saltwater.”
Boots at first thought the saucer was part of a weather balloon. Then he saw a typewritten message: “One Dollar Reward on Return of Serial Number With Date Found, Location, Your Name and Address to Geophysics Institute, Univ. of Alaska, Fairbanks.”
Near a small village in Russia, Marina Ivanova stepped into cross-country skis and kicked toward a hole in the snow. The meteorite specialist with the Smithsonian Museum of Natural History and Vernadsky Institute in Moscow was hunting for fragments of the great Chelyabinsk Meteorite that exploded three days earlier.
