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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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
Geotimes
July 2007
Carolyn Gramling
X-ray Eyes in the Sky Scientists are working on the next generation of low-orbiting satellites that they hope will see far past the Earth's surface and into its interior, to better understand the structure and composition of Earth's crust, mantle and core. mark for My Articles similar articles
Geotimes
July 2006
Carolyn Gramling
Earth Soaks up Seawater Geologists have long thought that seawater does not travel very far through Earth's interior A new geochemical study, however, is challenging that notion, saying that traces of seawater exist deep inside the planet. mark for My Articles similar articles
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. mark for My Articles similar articles
Geotimes
November 2005
Sara Pratt
Super-Rotation for Earth's Core A new earthquake study supports the 1996 finding that Earth's inner core is spinning faster than the planet's mantle and crust -- at a rate detectable on human timescales, but about one-third of the rate first suggested. mark for My Articles similar articles
Geotimes
April 2007
Nicole Branan
Found: Tibet's Missing Anchor Through new seismic work, researchers may have found a clue to why the Tibetan Plateau is as high as it is. A chunk of upper mantle that's been "missing" for some 15 million years may have contributed to the region's uplift, they say. mark for My Articles similar articles
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." mark for My Articles similar articles
Chemistry World
July 22, 2011
David Bradley
Cracking diamonds reveals continental origins An analysis of the mineral inclusions in diamonds dredged up by eruptions from deep within the Earth has allowed scientists to get a handle on when the process of plate tectonics began. mark for My Articles similar articles
Chemistry World
March 13, 2014
Emma Stoye
Piece of Earth's interior 'ocean' found in diamond A tiny crystal found in a diamond has confirmed predictions about a giant store of water deep in the Earth's mantle. mark for My Articles similar articles
Geotimes
January 2007
Nicole Branan
Heat Flow Causes Magnetic Reversals Earth's magnetic field has done hundreds of somersaults over the last few billion years. A new study sheds some light on what causes the geomagnetic field to flip. mark for My Articles similar articles
Geotimes
July 2004
Sara Pratt
Core Compositions Scientists are working to explain the differences in composition between Earth and Mars. mark for My Articles similar articles
Geotimes
November 2005
Naomi Lubick
Bolivian Earthquake Strikes Deep A magnitude-6.9 earthquake rumbled through Bolivia and northern Chile yesterday. No immediate deaths or damage were reported, although people evacuated their homes. mark for My Articles similar articles
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. mark for My Articles similar articles
Chemistry World
October 11, 2012
Andy Extance
Perovskite posits answer to xenon riddle If meteorites and the Earth were formed from similar materials at the same time, where did the xenon go? Some scientists think that the answer could be found in xenon trapped in the Earth's iron core, or in ice, water or rocks near the surface. mark for My Articles similar articles
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. mark for My Articles similar articles
Chemistry World
July 30, 2009
James Urquhart
Water linked to mantle oxidation US scientists have used an emerging technique to analyse minuscule samples of magma derived from the Earth's mantle in different tectonic environments and discovered a direct link between water content and the oxidation state of iron within the sample. mark for My Articles similar articles
Geotimes
September 2007
Nicole Branan
Understanding the Crust Beneath Iran The most recent continent-continent collision on Earth began about 10 to 20 million years ago when the Arabian Plate slammed into Eurasia in what is modern-day Iran. An international team of researchers has brought to light an important piece of this ancient history. mark for My Articles similar articles
Smithsonian
December 2006
Cate Lineberry
Diamonds Unearthed In the first installment of a multi-part series, Smithsonian diamond expert Jeffrey Post, curator of the National Gem and Mineral Collection, explains how the rare crystals form. mark for My Articles similar articles
Chemistry World
April 6, 2011
Mike Brown
Mars chemistry reveals how red planet cooled The chemistry of volcanic rock on Mars offers a picture of the thermal history of the planet, according to scientists in France. The findings could provide a reference point for the evolution of other planets, they say. mark for My Articles similar articles
Popular Mechanics
October 11, 2006
Alex Hutchinson
Nuke Watch: How Scientists Sniffed Out N. Korea This timely exclusive looks at nuclear detection technology and finds out just how tough it is to hide a weapons blast. mark for My Articles similar articles
Geotimes
September 2006
Carolyn Gramling
Donald Forsyth: At Play in the Field Forsyth emphasizes that collaborating with students and other researchers is not only important to solving tough geological puzzles, but also is much of the fun. mark for My Articles similar articles
National Defense
September 2010
Grace V. Jean
Scientists Say They Are Closer Than Ever to Predicting Earthquakes Researchers have discovered that there are warning signs that can be detected in the weeks and hours prior to temblors. mark for My Articles similar articles
Chemistry World
May 11, 2006
Jon Evans
Sea Water Assumes the Xenon Mantle Geochemists have uncovered evidence that sea water incorporates noble gases into the Earth's mantle, overturning current theories of how noble gases are transported beneath the crust. mark for My Articles similar articles
Geotimes
July 2003
Lisa M. Pinsker
Challenging core ideas Earth's core has never been so popular -- first plastered over billboards to advertise the recent movie The Core, and now in press worldwide discussing David Stevenson's "modest proposal" to send a grapefruit-sized probe thousands of kilometers into the planet's mysterious core. mark for My Articles similar articles
IEEE Spectrum
April 2008
John Boyd
Electromagnetic Link Deep in the Earth Varies the Length of the Day Scientists find that 2600 kilometers down, the Earth is electrically conductive. The mineral responsible could point the way to new superconductors. mark for My Articles similar articles
Geotimes
September 2005
Sara Pratt
Sourcing Ultradeep Diamonds Mineral impurities in a diamond may decrease the gem's value for jewelers, but for geologists they can prove to be priceless: South African diamonds containing garnet have recently provided evidence that very deep diamonds can form from surface materials. mark for My Articles similar articles
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. mark for My Articles similar articles
Geotimes
December 2003
Naomi Lubick
Glacial earthquakes Seismologists have fingered glaciers as one source of newly discovered "slow" earthquakes. mark for My Articles similar articles
Geotimes
September 2003
Sara Pratt
Zircons reveal mantle evolution A team of Finnish geologists has discovered 3.1 billion-year-old zircons in the Jormua ophiolite of eastern Finland. Although not the oldest zircons on Earth, the Jormua zircons are the oldest yet found in mantle rocks. Their discovery has given scientists a brief glimpse into the history of early plate tectonics. mark for My Articles similar articles
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. mark for My Articles similar articles
Geotimes
June 2007
Hansen & Gramling
Are Volcanoes Picky Eaters? New measurements of the concentrations of elements within magma suggest a volcano's food may be a complex recipe -- and that what kind of magma a volcano prefers may affect its physical features, including the size to which it can grow, according to new research mark for My Articles similar articles
Geotimes
November 2004
Jay Chapman
Taking the Fossil Out of Fuels New research is expanding the range of the formation of fossil fuels. mark for My Articles similar articles
Science News
March 17, 2001
TimeLine: March 14, 1931 70 Years Ago in Science News: New Welded Pipe Line Carries Water to San Diego... Age of Earth Determined as Over 2,000,000,000 Years... Moon Lacks Oxygen, Its Light Proves... mark for My Articles similar articles
Geotimes
October 2006
Carolyn Gramling
Flexing Plates Produce Volcanoes There's a new kind of volcano in town, according to a new study. mark for My Articles similar articles
Chemistry World
December 4, 2013
James Urquhart
Diamonds' redox reaction origins revealed Subduction zones -- boundaries between tectonic plates where the Earth's crust sinks into the hot mantle -- could be breeding grounds for diamond formation, according to Russian researchers. mark for My Articles similar articles
Geotimes
August 2007
Carolyn Gramling
Earth's Core is Solid, After All Seismic waves passing through Earth's center have long puzzled researchers, as some waves travel fast enough to indicate that Earth's inner core is solid iron-nickel crystals, but they do not travel quite as quickly as scientists would expect, based on studies of stiff iron alloys. mark for My Articles similar articles
Chemistry World
May 28, 2014
Ian Randall
Earth's earliest continent formed like Iceland The Earth's first continents may have formed in a geological setting similar to modern-day Iceland, according to the geochemical analysis of a newly discovered rock unit from Canada. mark for My Articles similar articles
Chemistry World
May 13, 2014
Tim Wogan
Chemistry calculations reveal Earth's inner core Theoretical calculations have confirmed that the Earth's core contains a significant proportion of oxygen. mark for My Articles similar articles
Geotimes
May 2007
Carolyn Gramling
Slow Earthquakes, Tiny Tremors Small earthquakes and tiny tremors originating deep in fault zones are the result of slow earthquakes at Earth's surface, according to a new study. mark for My Articles similar articles
Geotimes
November 2004
Naomi Lubick
Detecting Marine Gas Hydrates To better find large enough deposits to extract, scientists are working to improve seismic profiling techniques and other tools for better mapping of gas hydrates. mark for My Articles similar articles
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. mark for My Articles similar articles
Geotimes
October 2003
Geomedia Book Review: Krakatoa... DVD: Revisiting The Core... Maps: Annotated list of references for geologic mapping in Iraq... etc. mark for My Articles similar articles
Geotimes
April 2003
Christina Reed
Watching The Core: A movie review Geotimes went to the movies with four geophysicists from the Carnegie Institution of Washington to see the new blockbuster movie The Core. With Hollywood blaming its newest apocalypse on Earth's core, we couldn't resist. mark for My Articles similar articles
Geotimes
July 2004
Joining the Academy The National Academy of Sciences (NAS) elected six geoscientists to join its membership this year, one of the highest honors in the scientific community. From surface to core, the new members are a diverse group. mark for My Articles similar articles
Geotimes
November 2005
Naomi Lubick
Shift in Chile's Seismic History New research documenting tsunami deposits in the Nazca plate region is resetting the seismic clock. mark for My Articles similar articles
IEEE Spectrum
August 2006
Stephen Cass
Summer Reading Hollow Earth: The Long and Curious History of Imagining Strange Lands, Fantastical Creatures, Advanced Civilizations, and Marvelous Machines Below the Earth's Surface by David Standish... Kids to Space: A Space Traveler's Guide by Lonnie Jones Schorer... etc. mark for My Articles similar articles
Geotimes
December 2004
Lisa M. Pinsker
A Passive Approach to Healthy Oil Production A technology first used to help with mine safety has evolved into a tool for the oil and gas industry, with potential in application for sequestering carbon. mark for My Articles similar articles
Scientific American
March 2005
Madhusree Mukerjee
The Scarred Earth Tsunami-spawning quake leaves geophysical changes. mark for My Articles similar articles