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In Search of Serpentinization on Gorringe Bank

机译：寻找戈林银行蛇形化

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摘要

Gorringe Bank is a northeast-southwest elongated ridge on the floor of the eastern Atlantic Ocean that has been the site of diverse and ongoing geologic activity. Two distinctive seamounts mark the ridge, Gettysburg and Ormonde, both of which rise from the surrounding abyssal plain at > 5,000 m depth, to within a few tens of meters of sea level. Unlike most seamounts, which are extinct volcanoes, Gettysburg and Ormonde are uplifted blocks of oceanic crust and mantle created by seafloor spreading about 143 million years ago, during the early stages of opening of the Atlantic Ocean. Extreme faulting near the spreading center resulted in uplift and exposure of deep-seated rocks as an "oceanic core complex" (Karson et al., 2006; Smith et al., 2006).
机译：戈林格河岸是东大西洋海底东南-西南延伸的山脊，这里一直是多种多样且持续的地质活动场所。葛底斯堡和奥蒙德是两个独特的海山标志，分别从深度大于5,000 m的周围深海平原上升到几十米的海平面。与绝大部分火山绝大部分的海山不同，葛底斯堡和奥蒙德是由大约1.43亿年前在大西洋开放初期传播的海底所形成的洋壳和地幔的隆起块。扩展中心附近的极端断层导致深层岩石的隆起和暴露，成为“海洋核心复合体”（Karson等，2006； Smith等，2006）。

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  • 来源
    《Oceanography》 |2012年第1suppla期|p.38-396263|共4页
  • 作者

    Jeffrey A. Karson; Katherine L.C. Bell; Aleece Nanfito; Darcy Joyce; Marina Cunha; Javier Cristobo; Eugenia Manjon;

  • 作者单位

    Department of Earth Sciences, Syracuse University, Syracuse, NY;

    Nautilus Exploration Program, Narragansett, RI;

    Syracuse University, Syracuse, NY;

    Department of Earth Sciences, Syracuse University, Syracuse, NY;

    Marine Conservation and Marine Biology and Ecology, University of Aveiro, Portugal;

    Oceanographic Centre of Gijon, Spain;

    Department of Biology, University of Malaga, Spain;

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