Posts Tagged ‘geology’
Earth & Environment - Aug 28, 2009 10:25 - 0 Comments
Clues to feather’s technicolor past
Researchers have discovered evidence that prehistoric feather fossils from in Germany were once vividly iridescent. The finding could help scientists reconstruct the colorful features of other fossils. “Of course, the ‘Holy Grail’ in this program is reconstructing the colors of the feathered dinosaurs,” says lead author Jakob Vinther. (Credit: Jakob Vinther/Yale University)
Earth & Environment - Aug 19, 2009 4:00 - 0 Comments
When a toxic pond runneth over
A Duke graduate student takes samples from coal ash sludge shortly after a December 2008 spill at a power plant in Tennessee. (Courtesy: Avner Vengosh/Duke University)
Earth & Environment - Aug 10, 2009 4:00 - 0 Comments
In African rocks, traces of evolutionary blast
UNC CHAPEL HILL (US)—New research has opened the door on what some consider to be the greatest event in the history of animal life: a massive evolutionary jumpstart during the Cambrian Explosion half a billion years ago. (more…)
Earth & Environment - Jul 16, 2009 13:25 - 2 Comments
Carbon not the only culprit in global warming?
Mean surface temperature anomalies during the period 1999 to 2008 with respect to the average temperatures from 1940 to 1980. (Courtesy: Robert A. Rohde/Wikipedia)
Earth & Environment - Jul 9, 2009 14:39 - 1 Comment
Plants save Earth from icy doom
“Our research supports the emerging view that plants should be recognized as a geologic force of nature, with important consequences for all life on Earth,” says coauthor David Beerling from the University of Sheffield.
Earth & Environment - Jul 6, 2009 16:51 - 0 Comments
Could ocean wind be an energy bonanza?
A new study finds wind energy over the planet’s oceans is a vastly underutilized renewable resource.
Science & Technology - Jun 19, 2009 15:41 - 2 Comments
What a view! Shorefront property found on Mars
Reconstructed landscape showing the Shalbatana Lake on Mars as it may have looked roughly 3.4 billion years ago. Data used in reconstruction are from NASA and the European Space Agency. (Credit: G. Di Achille/ University of Colorado)
Earth & Environment - Jun 19, 2009 9:02 - 0 Comments
Ice cores show fossil fuels disrupt nitrogen cycle
Scientists extracted a 100-meter-long ice core in Greenland to measure how fossil fuel burning of industrial times has disrupted the global nitrogen cycle. At left is Meredith Hastings of Brown University, the lead author of the study, accompanied by Bella Bergeron from Ice Coring and Drilling Services. (Credit: Meredith Hastings/Julia Jarvis)
Science & Technology - Jun 3, 2009 15:32 - 0 Comments
Dark, balmy Arctic home to ancient mammals
University of Colorado at Boulder researcher Jaelyn Eberle, left, searches for early mammal fossils in the high Arctic with Brendan Postnikoff of the University of Saskatchewan (blue parka) and Joe Kudlack, right, from Banks Island in the Northwest Territories. (Credit: University of Colorado)
Science & Technology - Jun 2, 2009 15:17 - 3 Comments
Asteroids hammering Earth a boon to early life?
Credit: NASA
Science & Technology - May 4, 2009 16:45 - 1 Comment
Dinosaur demise—Don’t blame the asteroid
PRINCETON (US)—Geoscientist Gerta Keller says there’s new proof volcanoes—not a vast meteorite—wiped out the dinosaurs 65 million years ago. (more…)
Science & Technology - Mar 9, 2009 20:48 - 0 Comments
Arctic turtle fossil reveals clues to climate change
U. ROCHESTER (US)—A tropical turtle fossil discovered high in the Canadian Arctic suggests that a rapid spike in carbon dioxide some 90 million years ago created a super-greenhouse effect, raising polar temperatures rather dramatically. The find strongly suggests that animals migrated from Asia to North America not around Alaska, as once thought, but directly across a freshwater sea floating atop the warm, salty Arctic Ocean. (more…)
