The eruption of giant masses of magma in Siberia 250 million years ago led to the Permo-Triassic mass extinction when more than 90 % of all species became extinct. An international team including geodynamic modelers from ...
Earth Sciences
Sep 14, 2011
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A rare 5.8 earthquake that rattled the eastern United States on Tuesday was felt over a wide area from Toronto, Canada down to Georgia due to the hard, brittle quality of the ground, experts said.
Earth Sciences
Aug 23, 2011
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(PhysOrg.com) -- A team of scientists led by Rice University has figured out why the Colorado Plateau – a 130,000-square-mile region that straddles Colorado, Utah, Arizona and New Mexico -- is rising even while parts ...
Earth Sciences
Apr 27, 2011
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A popular view among geophysicists is that large amounts of water are carried from the oceans to the deep mantle in "subduction zones," which are boundaries where the Earth's crustal plates converge, with one plate riding ...
Earth Sciences
Oct 18, 2010
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During the collision of India with the Eurasian continent, the Indian plate is pushed about 500 kilometers under Tibet, reaching a depth of 250 kilometers. The result of this largest collision in the world is the world's ...
Earth Sciences
Sep 16, 2010
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(PhysOrg.com) -- The North American continent is not one thick, rigid slab, but a layer cake of ancient, 3 billion-year-old rock on top of much newer material probably less than 1 billion years old, according to a new study ...
Earth Sciences
Aug 25, 2010
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(PhysOrg.com) -- The strikingly banded rocks scattered across the upper Midwest and elsewhere throughout the world are actually ambassadors from the past, offering clues to the environment of the early Earth more than 2 billion ...
Earth Sciences
Oct 11, 2009
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An international team of researchers has created the most complete seismic image of the Earth's crust and upper mantle beneath the rugged Himalaya Mountains, in the process discovering some unusual geologic features that ...
Earth Sciences
Sep 11, 2009
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(PhysOrg.com) -- There are very few places in the world where dynamic activity taking place beneath Earth's surface goes undetected.
Earth Sciences
May 26, 2009
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