Science news articles about 'mantle convection'

  • Magnetic field, mantle convection and tectonics

    ... of Earth, and in this way alters the also heat-driven convection in Earth's core," said Bernhard Steinberger of the GFZ ... knowledge, therefore, an influence of plate tectonics and mantle convection on Earth's magnetic field seems ...
  • 'Dynamic duo' develops framework for Earth's inaccessible interior

    ... history of our planet – it is continuously churning and changing. How a mantle convects and how the plates move is very different ... is causing these motions until we better understand how the mantle itself is convecting,” says McNamara. “The piles dictate ...
  • Hot climate could shut down plate tectonics

    ... relies on the assumption that excess heat from the Earth's mantle can efficiently escape through the crust. The stress ... is enough prolonged surface heating to cause a feedback loop in the planet's mantle convection cycle ...
  • The continents as a heat blanket

    ... the heat distribution within the Earth's mantle and the associated convective mass flow. In other words the continents ... to heat accumulation which in turn leads to a reorganoization of mantle convection with the pieces ultimately joining again ...
  • A hidden drip, drip, drip beneath Earth's surface

    ... provide important insights into fine-scale mantle convection processes, and their possible connections with volcanism and mountain-building on Earth's surface," said Greg Anderson ...
  • What goes down, must come up: Earth's leaky mantle

    ... , neon and argon -- are lost from the Earth's interior during mantle convection. "Most existing models find ... and still be consistent with the existing framework for whole mantle convection." On human timescales, the Earth's surface ...
  • Yellowstone's plumbing exposed

    ... southwest, the warm, underlying mantle slowly boils due to convection, with warm areas moving ... is such that the plume is "blown" east-southeast by mantle convection, so it angles upward toward Yellowstone ...
  • 20-year study yields precise model of tectonic-plate movements

    ... mountain-building and subsurface processes like mantle convection." The new model, dubbed MORVEL for "mid-ocean ridge velocities," is described in an extensive ...
  • Flow in Earth's mantle moves mountains

    ... of the University of Rome believe that small-scale convection in the mantle is partly responsible for shaping mobile ... ), the authors used temperature differences to model the direction of mantle convection. Regions of upward flow, as predicted ...
  • Geophysicists claim conventional understanding of Earth's deep water cycle needs revision

    ... ; if water is not cycled deep into Earth, it means that mantle convection has not been as vigorous over time as it would have been with significant water." Study results appear in the current issue ...
  • Earth's mantle: New numerical tool describes rock deformation

    ... million years, to link the deformation of these rocks with mantle convection, the fundamental driver of plate tectonics. Until now, no experimental method in the laboratory ...
  • Why do the Caribbean Islands arc?

    ... align after millions of years of being pushed around in mantle convection. "If you can, you want to solve the whole system and then zoom in," Becker said. "What ...
  • Search for life suggests solar systems more habitable than ours

    ... are beginning to suspect that the same forces of heat convection in the mantle that move Earth's crust somehow ... some kind of crust 'recycling system,' and for us that's mantle convection," Unterborn said. In particular, microbial life ...
  • LLNL scientist finds topography of Eastern Seaboard muddles ancient sea level changes

    ... of Texas at Austin modeled the active topography using mantle convection simulations that predict the amplitude and broad spatial distribution of this distortion. The results imply that dynamic ...

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