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Water may be a damp squib

机译:水可能是潮水

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In 1965, Griggs and Blacic demonstrated that wet quartz is much weaker than dry quartz, and suggested that this should also be the case for other silicates. Indeed, the authors concluded: "These observations raise the possibility of great weakness in the earths deeper crust and outer mantle at temperatures far below the melting point." In other words, water might control the viscosity of all rocks. Since then, experiments on other silicates have reinforced that view, and small amounts of water bound into normally dry minerals such as olivine are now attributed with almost divine powers in shaping the way that Earth works. On page 213 of this issue, Fei and colleagues3 show that water may be much less important in controlling many large-scale processes occurring in the Earth than was previously thought.
机译:1965年,Griggs和Blacic证明了湿石英比干石英弱得多,并建议其他硅酸盐也应如此。的确,作者得出的结论是:“这些观察结果提出了在远低于熔点的温度下,地球深部的地壳和外地幔可能会出现严重软弱的可能性。”换句话说,水可以控制所有岩石的粘度。从那时起,对其他硅酸盐的实验就强化了这种观点,如今,结合到通常干燥的矿物(如橄榄石)中的少量水现在在塑造地球工作方式方面几乎具有神圣的力量。 Fei和同事3在本期杂志的第213页上表明,水在控制地球上发生的许多大规模过程中的重要性可能比以前认为的要小得多。

著录项

  • 来源
    《Nature》 |2013年第7453期|181-182|共2页
  • 作者

    John Brodholt;

  • 作者单位

    in the Department of Earth Sciences, University College London, London WC1E6BT, UK;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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