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Latest Earth science Stories

2012-07-30 13:43:26

On a time scale of tens to hundreds of millions of years, the geomagnetic field may be influenced by currents in the mantle. The frequent polarity reversals of Earth's magnetic field can also be connected with processes in the mantle. These are the research results presented by a group of geoscientists in the new advance edition of "Nature Geoscience" on Sunday, July 29th. The results show how the rapid processes in the outer core, which flows at rates of up to about one millimeter per...

Volcanic Plumbing Provides Clues on Eruptions and Earthquakes
2012-04-13 03:49:08

Two new studies into the "plumbing systems" that lie under volcanoes could bring scientists closer to understanding plate ruptures and predicting eruptions–both of which are important steps for protecting the public from earthquake and volcanic hazards. International teams of researchers, including two scientists from the University of Rochester, have been studying the location and behavior of magma chambers on the Earth's mid-ocean ridge system–a vast chain of volcanoes along...

2012-03-30 08:29:09

Two new studies into the "plumbing systems" that lie under volcanoes could bring scientists closer to predicting large eruptions. International teams of researchers, led by the University of Leeds, studied the location and behavior of magma chambers on the Earth's mid-ocean ridge system - a vast chain of volcanoes along which the Earth forms new crust. They worked in Afar (Ethiopia) and Iceland - the only places where mid-ocean ridges appear above sea level. Volcanic ridges (or...

2012-03-06 10:55:21

GEOLOGY posted ahead of print 14 Feb.—2 Mar. is a dynamic collection of papers covering modeling studies of the U.S. New Madrid Seismic Zone; landslide prediction through examination of the Slumgullion landslide, Colorado; investigation of a potential nuclear waste repository site in Finland; understanding river delta formation and long-term evolution with insights from the Mekong River, Vietnam; and an explanation of how drought drove forest decline and dune building in eastern upper...

Southern California's Tectonic Plates Revealed In Detail
2011-10-07 03:52:56

Rifting is one of the fundamental geological forces that have shaped our planet. Were it not for the stretching of continents and the oceans that filled those newly created basins, Earth would be a far different place. Yet because rifting involves areas deep below the Earth's surface, scientists have been unable to understand fully how it occurs. What is known is that with rifting, the center of the action lies in the lithosphere, which makes up the tectonic plates and includes the crust...

Image 1 - NSF Frontiers In Earth-System Dynamics Awards Explore Links Among Earth Processes And Systems
2011-10-01 07:22:11

Scientists investigate a changing planet now and in the past, with a view toward predicting its future Sun-to-ice: solar energy to ice chemistry on Earth; river delta changes; glaciers in a warmer world; earthquakes and fault slip; Earth's mantle and core, and how they interact with our planet's continents, oceans and atmosphere. To explore the connections among Earth's systems, the National Science Foundation (NSF) has made seven awards totalling $33 million. They are the first awards...

Salty Water, Gas Sucked Into Earth's Interior Helps Unravel Planetary Evolution
2011-09-26 08:30:42

  An international team of scientists has provided new insights into the processes behind the evolution of the planet by demonstrating how salty water and gases transfer from the atmosphere into the Earth's interior. The paper was published in Nature Geoscience on Sept. 25. Scientists have long argued about how the Earth evolved from a primitive state in which it was covered by an ocean of molten rock, into the planet we live on today with a solid crust made of moving tectonic...

2011-09-02 12:00:14

Unleash your inner explorer and accompany USC geobiologist Katrina Edwards as she embarks on an ocean adventure this month – by reading her blog. The blog´s first post can be found online at the Scientific American website at http://blogs.scientificamerican.com/expeditions/2011/08/30/introducing-expedition-336-at-north-pond/. Edwards and her colleague Wolfgang Bach of Bremen University will co-lead a team of more than 100 scientists and support crew for the Center for Dark...

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2011-07-22 12:04:00

Ancient minerals tell story of planet's distant past Jewelers abhor diamond impurities, but they are a bonanza for scientists. Safely encased in super-hard diamond, impurities are unaltered, ancient minerals that tell the story of Earth's distant past. Researchers analyzed data from more than 4,000 of these mineral inclusions to find that continents started the cycle of breaking apart, drifting, and colliding about three billion years ago. The research results, published in this week's issue...

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2011-06-28 12:40:00

The Biosphere 2 facility in Oracle Arizona will become the official property of the University of Arizona on July 1. CDO Ranching & Development donated 40 acres of real estate, including the scientific apparatus of Biosphere 2, a state-of-the-art conference center, a 3 megawatt power-generating plant and several other support and administrative buildings. The Philecology Foundation will provide $20 million supporting the ongoing science and operations of the one-of-a-kind research...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.