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Geotimes
December 2003
Sara Pratt |
Ultraslow spreading centers In two of the deepest and most remote parts of the world, scientists have discovered a new class of "ultraslow" spreading ridge, where cold, solid slabs of mantle are being heaved to the surface to build new seafloor.   |
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. |
Geotimes
January 2007
Kathryn Hansen |
Eruptive Event Caught Red-Handed Researchers know that, in general, mid-ocean ridges are the site of periodic eruptive events that create new seafloor. At the East Pacific Rise, determining the seismic characteristics that lead up to eruptions could help researchers predict when and where along the trench future events are likely to occur. |
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 |
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. |
Wired
December 2004
Erika Check |
Mysteries of the Deep The top 15 places to explore beneath the sea. |
Geotimes
October 2006
Carolyn Gramling |
Flexing Plates Produce Volcanoes There's a new kind of volcano in town, according to a new study. |
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. |
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. |
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. |
Geotimes
September 2007
Carolyn Gramling |
Cold Wars: Russia Claims Arctic Land The underwater Lomonosov Ridge stretches across the floor of the Arctic Ocean between Greenland and Russia, crossing through the geographic North Pole. Russia recently claimed that the ridge is an extension of its continental shelf in a bid to expand its territory. |
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
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. |
Science News
May 24, 2003
Ivars Peterson |
Deciphering the Wrinkles of Crumpled Sheets Researchers study the energy that goes into crumpling paper. |
