...
首页> 外文期刊>Science >Gradual caldera collapse at Bardarbunga volcano, Iceland, regulated by lateral magma outflow
【24h】

Gradual caldera collapse at Bardarbunga volcano, Iceland, regulated by lateral magma outflow

机译:受横向岩浆流出的调节,冰岛Bardarbunga火山逐渐破火山口塌陷

获取原文
获取原文并翻译 | 示例
           

摘要

Large volcanic eruptions on Earth commonly occur with a collapse of the roof of a crustal magma reservoir, forming a caldera. Only a few such collapses occur per century, and the lack of detailed observations has obscured insight into the mechanical interplay between collapse and eruption. We use multiparameter geophysical and geochemical data to show that the 110-square-kilometer and 65-meter-deep collapse of Bardarbunga caldera in 2014-2015 was initiated through withdrawal of magma, and lateral migration through a 48-kilometers-long dike, from a 12-kilometers deep reservoir. Interaction between the pressure exerted by the subsiding reservoir roof and the physical properties of the subsurface flow path explain the gradual, near-exponential decline of both collapse rate and the intensity of the 180-day-long eruption.
机译:地球上的大型火山喷发通常发生在地壳岩浆储层的屋顶坍塌,形成火山口。每个世纪仅发生了几次这样的坍塌,并且由于缺乏详细的观察,使得人们对坍塌和喷发之间的机械相互作用的见解变得模糊。我们使用多参数地球物理和地球化学数据显示,2014-2015年Bardarbunga破火山口的110平方公里和65米深的塌陷是通过岩浆撤离以及通过48公里长的堤坝的横向迁移而引起的。一个12公里深的水库。塌陷的储层顶板施加的压力与地下流路的物理特性之间的相互作用解释了塌陷率和180天喷发强度的逐渐接近指数级下降。

著录项

  • 来源
    《Science》 |2016年第6296期|262-262|共1页
  • 作者单位

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Iceland Meteorol Off, IS-150 Reykjavik, Iceland;

    Univ Leeds, Ctr Observat & Modelling Earthquakes Volcanoes &, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England;

    GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany|Univ Coll Dublin, Sch Earth Sci, Dublin, Ireland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Iceland Meteorol Off, IS-150 Reykjavik, Iceland;

    GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany;

    Iceland Meteorol Off, IS-150 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland|Univ Clermont Ferrand, IRD, Lab Magmas & Volcans, F-63038 Clermont Ferrand, France;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Iceland, Fac Ind & Mech Engn & Comp Sci, Hjardarhagi 2-6, IS-107 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    GNS Sci, POB 30368, Lower Hutt 5040, New Zealand;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Nacl Autonoma Mexico, Dept Sismol, Inst Geofis, Mexico City 04510, DF, Mexico;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany;

    Univ Vienna, Dept Geodynam & Sedimentol, Althanstr 14, A-1090 Vienna, Austria;

    GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany;

    Iceland Meteorol Off, IS-150 Reykjavik, Iceland;

    Iceland Meteorol Off, IS-150 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Leeds, Ctr Observat & Modelling Earthquakes Volcanoes &, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Iceland Meteorol Off, IS-150 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland|Iceland Meteorol Off, IS-150 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland|Natl Commissioner Iceland Police, Dept Civil Protect & Emergency Management, Skulagata 21, IS-101 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Univ Iceland, Nordvulk Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland;

    Natl Commissioner Iceland Police, Dept Civil Protect & Emergency Management, Skulagata 21, IS-101 Reykjavik, Iceland;

    Iceland Meteorol Off, IS-150 Reykjavik, Iceland;

    Iceland Meteorol Off, IS-150 Reykjavik, Iceland;

    Iceland Meteorol Off, IS-150 Reykjavik, Iceland;

    Kings Coll London, Kings Bldg,Strand Campus, London WC2R 2LS, England;

    Univ Manchester, Williamson Bldg,Oxford Rd, Manchester M13 9PL, Lancs, England;

    Univ Manchester, Williamson Bldg,Oxford Rd, Manchester M13 9PL, Lancs, England;

  • 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
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号