The mountain ranges of the North American Cordillera are made up of dozens of distinct crustal blocks. A new study clarifies their mode of origin and identifies a previously unknown oceanic plate that contributed to their ...
Earth Sciences
Apr 3, 2013
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(Phys.org) —The Isabella anomaly—indications of a large mass of cool, dehydrated material about 100 kilometers beneath central California—is in fact a surviving slab of the Farallon oceanic plate. Most of the Farallon ...
Earth Sciences
Mar 18, 2013
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A tiny fraction of meteorites on earth contain strikingly beautiful, translucent, olive-green crystals embedded in an iron-nickel matrix. Called pallasites, these "space gems" have fascinated scientists since they were first ...
Space Exploration
Nov 15, 2012
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A smog-like haze that hung over part of Alaska's Kodiak Island this week was courtesy of a volcanic eruption—100 years ago.
Earth Sciences
Oct 31, 2012
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(AP)—A powerful earthquake struck Costa Rica's Pacific coast on Tuesday, swaying buildings and sending people running into the streets in the nation's capital of San Jose.
Earth Sciences
Oct 24, 2012
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Annual to decadal changes in the earth's magnetic field in a region that stretches from the Atlantic to the Indian Ocean have a close relationship with variations of gravity in this area. From this it can be concluded that ...
Earth Sciences
Oct 22, 2012
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(AP)—Damage from a small earthquake and a subsequent aftershock in a suburb west of Dallas was mostly limited to cracked walls and knocked-down pictures, authorities said.
Earth Sciences
Sep 30, 2012
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With Arctic ice cap at record low this summer, University of Calgary geography professor John Yackel predicts serious consequences for the planet.
Environment
Sep 24, 2012
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(Phys.org)—The warmer the air, the more water can evaporate: a simple relationship familiar to us from everyday life. Researchers from Germany and the Netherlands have now established that this is not always the case: although ...
Earth Sciences
Sep 4, 2012
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(AP)—A magnitude-4.2 earthquake rattled communities 100 miles (160 kilometers) east of San Diego on Monday night, despite observations from earthquake experts that a series of small to moderate earthquakes seemed to be ...
Earth Sciences
Aug 28, 2012
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