News tagged with geological society of america bulletin
Tsunami waves reasonably likely to strike Israel
Space & Earth / Earth Sciences
Oct 26, 2009 |
3 / 5 (4) |
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"There is a likely chance of tsunami waves reaching the shores of Israel," says Dr. Beverly Goodman of the Leon H. Charney School of Marine Sciences at the University of Haifa following encompassing geoarchaeological research ...
Studies offers new picture of Lake Tahoe's earthquake potential
Space & Earth / Earth Sciences
Apr 29, 2009 |
5 / 5 (2) |
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For more than a decade, scientists at Scripps Institution of Oceanography at UC San Diego have been unraveling the history of fault ruptures below the cobalt blue waters of Lake Tahoe one earthquake at a time. ...
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'Fossil earthquakes' abundant
Space & Earth / Earth Sciences
Jan 28, 2009 |
3 / 5 (3) |
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Rocks formed only under the extreme heat and friction during earthquakes, called pseudotachylytes, may be more abundant than previously reported, according to new research focused on eight faults found in the Sierra Nevada. ...
Topsoil's limited turnover: A crisis in time
Space & Earth / Earth Sciences
Oct 02, 2008 |
3.9 / 5 (8) |
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Topsoil does not last forever. Records show that topsoil erosion, accelerated by human civilization and conventional agricultural practices, has outpaced long-term soil production. Earth's continents are losing prime agricultural ...
Pterodactyl-inspired robot to master air, ground and sea
Oct 02, 2008 |
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Paleontologist Sankar Chatterjee of Texas Tech University, aeronautical engineer Rick Lind of the University of Florida, and their students Andy Gedeon and Brian Roberts have reached back in time 115 million ...
New liquefaction hazard maps of Santa Clara Valley, Northern California
Space & Earth / Earth Sciences
Jan 27, 2009 |
3 / 5 (3) |
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New hazard maps for communities from San Jose to Palo Alto in Northern California delineate the probability of earthquake-induced liquefaction, based on three scenarios: a magnitude 7.8 on the San Andreas ...
Andes Mountains Are Older Than Previously Believed
Space & Earth / Earth Sciences
May 15, 2009 |
4.9 / 5 (7) |
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(PhysOrg.com) -- The geologic faults responsible for the rise of the eastern Andes mountains in Colombia became active 25 million years ago—18 million years before the previously accepted start date for the ...
Why do earthquakes stop?
Space & Earth / Earth Sciences
Feb 06, 2008 |
3.7 / 5 (7) |
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The underlying structure of a fault determines whether an earthquake rupture will jump from one fault to another, magnifying its size and potential devastation. Understanding why some earthquakes terminate along a fault, ...
Early warning systems underestimate magnitude of large earthquakes
Space & Earth / Earth Sciences
Jan 28, 2009 |
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Scientists seek to create reliable early warning systems that accurately estimate the magnitude of an earthquake within the first seconds of rupture. In this paper published by the Bulletin of the Seismological Society of ...
From mothballs to mobilization: Taking the salt out of sea water
Sep 30, 2008 |
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The United Nations estimates that 1.1 billion people across the globe lack access to sustainable, clean drinking water and that 1.6 million children will die each year because of that lack of access. How can science help ...
A definitive guide to the great mantle plume debate
Space & Earth / Earth Sciences
Nov 13, 2007 |
3.6 / 5 (7) |
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Geoscientists' heightened debate on the existence of mantle plumes is highlighted in a new volume published by the Geological Society of America. Plates, Plumes, and Planetary Processes includes both chapters advocating the ...
War from the ground up
Space & Earth / Earth Sciences
Oct 01, 2008 |
3.6 / 5 (8) |
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The connection between geology and the history of the Civil War has fascinated Robert Whisonant since his undergraduate days, and now Whisonant has teamed up with geomorphologist Judy Ehlen, both of Radford University, to ...
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