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Geotimes
July 2006
Carolyn Gramling |
Afar From Close-up Powerful stresses in the crust lead to frequent earthquakes and volcanism in the Afar Depression of northeastern Ethiopia. Researchers now say that the source of this activity reveals a possible new connection in Earth's interior.   |
Geotimes
November 2003
Naomi Lubick |
Turkish tectonics Researchers recently published preliminary results of the first data collected with modern techniques documenting the tectonic and seismic regimes of eastern Turkey. Their work may overturn conceptions of the tectonic setting of the region. |
Geotimes
April 2006
Naomi Lubick |
Tibetan Plateau Timing Exactly how and when the Tibetan Plateau's uprising began remains debated. New data suggest that the southern half of the plateau reached its current height before 35 million years ago. |
Geotimes
May 2007
Kathryn Hansen |
Deep Earth May Hold an Ocean Earth's deep interior, more than 1,000 kilometers below the surface in the mantle, could prove to be a watery place. That's the conclusion researchers drew from an anomaly uncovered by the first global map of Earth's lower mantle, using a new type of seismic analysis. |
Geotimes
August 2003
Christina Reed |
Making mountains from a molehill Jason Saleeby of Caltech says the Laramide Slab owes its uniqueness to having carried a plateau from the distant seafloor, which helps explain why the shallow oceanic slab sheared off a segment of western North America's continental lithosphere. |
Geotimes
September 2005
Naomi Lubick |
Repositioning Tokyo's Fault Seismologists now think Tokyo's fault sits closer to Earth's surface than previously thought. If the fault is indeed shallower, the new assessment has the potential to revise the projected hazards Tokyo may face in the future. |
Geotimes
September 2007
Elizabeth Quill |
Earth's Heat Buoys up Its Crust New research suggests that without the heat in Earth's crust and upper mantle creating elevation, much of North America would be underwater. |
Geotimes
February 2004
Naomi Lubick |
Pursuing plumes Geophysicists recently presented improved methods for imaging mantle plumes, providing the strongest evidence yet that some plumes extend all the way down to the coremantle boundary. |
Geotimes
July 2004
Jay Chapman |
Earthquake Rattles Tibet Early Monday morning, an earthquake shook the sparsely populated Gangdise Mountains in Tibet. |
Geotimes
June 2005
Naomi Lubick |
Double-Crossing the Core A team of scientists has taken the properties of a mineral from the Earth's lower mantle, together with seismic observations of the core-mantle boundary, to propose a new model that could elucidate the heat engine that drives Earth. |
Geotimes
February 2007
Cobb et al. |
Rolling Across the Roof of the World The new rail connection to Tibet is a remarkable geotechnical achievement. The Qinghai-Tibet Railway brings greater access to the Tibetan Plateau -- which is good news to geoscientists wanting to see this fantastic and still remote part of the world. |
Geotimes
March 2007
Carolyn Gramling |
New Madrid Fault Dying? A series of devastating earthquakes that altered the course of the Mississippi River in the early 19th century may have been among the last gasps of an old, dying fault system, a controversial new study suggests. |
IEEE Spectrum
November 2006
Kieron Murphy |
Q&A: Paul G. Richards, Nuclear Arms Seismologist An interview with the Mellon Professor of the Natural Sciences at Lamont-Doherty Earth Observatory of Columbia University on the science of detecting and measuring nuclear weapons test explosions. |
Geotimes
October 2004 |
California's Moho The southern Sierra Nevada mountain range in California has an anomalously thin crust and using seismic imaging, geologists have observed that something is missing. |
Geotimes
August 2007
Fred Schwab |
The "Roof of the World" is Leaking If China's recent history of environmental stewardship is any guide, the future of Tibet is as hazy as Beijing's sky. China's push to develop Tibet may irreparably damage it. |
Geotimes
November 2007
Carolyn Gramling |
How Does Your Continent Grow? Data from ancient mantle rocks are helping to shore up the hypothesis that the continental crust was extracted in pulses, during periodic large melting events in the mantle. |
Geotimes
April 2007
Kathryn Hansen |
Ocean Waves Drive Earth's Hum High-energy near-shore waves are the main source of energy for the constant seismic background noise known as Earth's "hum." |
Salon.com
February 4, 2002
Terence Clarke |
Tibet: Lost in the Himalayas An American photographer who brought three children out of Tibet talks about how the country's legendary spiritual tradition is vanishing... |
