Deep-Focus Earthquakes and Recycling of Water into the Earth's Mantle

DOI Web Site 被引用文献16件
  • Charles Meade
    Department of Geology and Geophysics, University of California, Berkeley, CA 94720
  • Raymond Jeanloz
    Department of Geology and Geophysics, University of California, Berkeley, CA 94720

書誌事項

公開日
1991-04-05
DOI
  • 10.1126/science.252.5002.68
公開者
American Association for the Advancement of Science (AAAS)

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説明

<jats:p>For more than 50 years, observations of earthquakes to depths of 100 to 650 kilometers inside Earth have been enigmatic: at these depths, rocks are expected to deform by ductile flow rather than brittle fracturing or frictional sliding on fault surfaces. Laboratory experiments and detailed calculations of the pressures and temperatures in seismically active subduction zones indicate that this deep-focus seismicity could originate from dehydration and high-pressure structural instabilities occurring in the hydrated part of the lithosphere that sinks into the upper mantle. Thus, seismologists may be mapping the recirculation of water from the oceans back into the deep interior of our planet.</jats:p>

収録刊行物

  • Science

    Science 252 (5002), 68-72, 1991-04-05

    American Association for the Advancement of Science (AAAS)

被引用文献 (16)*注記

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