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All Articles Tagged As: tectonics
 | Two giant plumes of hot rock deep within the earth are linked to the plate motions that shape the continents, researchers have found. The two superplumes, one beneath Hawaii and the other beneath Africa, have likely existed for at least 200 million years, explained Wendy Panero, assistant professor of earth sciences at Ohio State University. ...> Full Article |
Analysis of minerals in ancient magmas paints new picture of early Earth
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 | Tiny minerals found inside diamonds have provided us with a rare glimpse of the Earth’s deepest secrets. ...> Full Article |
 | Contrary to previous evidence, a new study shows the Isthmus of Panama was most likely formed by a Central American Peninsula colliding slowly with the South American continent through tectonic plate movement over millions of years. ...> Full Article |
 | Active tectonics comprise the most up-to-date deformation processes that affect the Earth's crust, resulting in earthquakes or recent deformations in the planet's faults and folds ...> Full Article |
With locked crust, Earth could become another Venus
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 | A new model of inner Earth constructed by Arizona State University researchers pulls past information and hypotheses into a coherent story to clarify mantle motion. ...> Full Article |
Ten questions driving the geological and planetary sciences were identified today in a new report by the National Research Council. Aimed at reflecting the major scientific issues facing earth science at the start of the 21st century, the questions represent where the field stands, how it arrived at this point, and where it may be headed.
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 | The first direct evidence of how and when tectonic plates move into the deepest reaches of the Earth has been detailed in Nature. Scientists hope their description of how plates collide with one sliding below the other into the rocky mantle could potentially improve their ability to assess earthquake risks. ...> Full Article |
 | Death Valley may be known by its three superlatives: hottest, driest, and lowest - as in temperature, rainfall, and elevation in the United States. But it was the flow of water through the National Park that attracted Boston College Asst. Prof. of Geology and Geophysics Noah P. Snyder to the desert of eastern California. ...> Full Article |
Earthquakes occurring at the edges of tectonic plates can trigger events at a distance and much later in time, according to a team of researchers reporting in today's (Jan. 31) issue of Nature. These doublet earthquakes may hold an underestimated hazard, but may also shed light on earthquake dynamics.
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 | Study upsets long-held image of volcanism-driven hydrothermal vents ...> Full Article |
 | Zigzagging some 60,000 kilometers across the ocean floor, Earth's system of mid-ocean ridges plays a pivotal role in many workings of the planet: in plate-tectonic movements, heat flow from the interior, and the chemistry of rock, water and air. ...> Full Article |
 | New Theoretical Model Suggests Plate Tectonics May Be On-Again, Off-Again Process ...> Full Article |
 | Plate tectonics, the geologic process responsible for creating the Earth's continents, mountain ranges, and ocean basins, may be an on-again, off-again affair. Scientists have assumed that the shifting of crustal plates has been slow but continuous over most of the Earth's history, but a new study from researchers at the Carnegie Institution suggests that plate tectonics may have ground to a halt at least once in our planet's history--and may do so again. ...> Full Article |
 | Researchers are investigating whether it is possible to find signs of life in rocks that are 3.5 billion years old. If they succeed, it may become easier to search for life on Mars. ...> Full Article |
 | Geologists Say 'Wall of Africa' Allowed Humanity to Emerge ...> Full Article |
 | Determining the origin and rate of magma production in subduction zone volcanoes is essential to understanding the formation of continental crust and the recycling of subducted materials back into Earth's mantle. ...> Full Article |
 | Seismologists have recast their understanding of the inner workings of Earth from a relatively homogeneous environment to one that is highly dynamic and chemically diverse. ...> Full Article |
New minerals include stornesite-(Y), chopinite and tassieite, all are extremely rare and represented only by microscopic samples.
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 | Scientists drill into earthquake zone 10,000-plus feet beneath Earth's surface ...> Full Article |
In 1911 the discovery that the world was billions of years old changed our view of the world for ever.
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A combination of geological and biological findings are lending weight to the possibility that the Chatham Islands were under water until three million years ago, and that New Zealand's flora and fauna may have evolved in another large island near New Zealand.
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 | Heat loss from Earth's interior depends on size and number of plates, say scientists from USC and two other universities. ...> Full Article |
 | A reversal of tectonic plate motion between Acapulco and Mexico City in the last half of 2006 probably didn't ease seismic strain in the region or the specter of a major earthquake anticipated there in the coming decades, says a University of Colorado at Boulder professor. ...> Full Article |
 | Perhaps it was just a matter of sympathy, but tremors rippled the landscape of Vancouver Island, the westernmost part of British Columbia, in 2002 during a major Alaskan earthquake. Geoscientists at the University of Washington have found clear evidence that the two events were related. ...> Full Article |
Researchers exploring a remote terrain in Arctic Canada have made discoveries that may rock the world of Canadian geology.
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