Collaborative Research: An Earthscope Magnetotelluric Survey of the Southern Cascadia Subduction System, Washington

合作研究:华盛顿州卡斯卡迪亚南部俯冲系统的 Earthscope 大地电磁勘探

基本信息

  • 批准号:
    0843725
  • 负责人:
  • 金额:
    $ 37.5万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2009
  • 资助国家:
    美国
  • 起止时间:
    2009-06-15 至 2013-05-31
  • 项目状态:
    已结题

项目摘要

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The Pacific Northwest, and Washington State in particular, are characterized by a subduction zone environment called the Cascadia subduction system. The Cascadia subduction system is an area of the Earth where the seafloor is colliding with, and is being pushed below the overriding crust of the North American continent. The recycling of the seafloor beneath the continent is a complex process: the collision and descent of the seafloor can cause major earthquakes, slow slip and tremor, and volcanic eruptions such as that seen at Mount St Helens and Mount Redoubt. In order to understand these potentially devastating processes, the internal structure of the Earth needs to be imaged at the point where earthquakes, fluid release and melting are triggered, to depths of up to 200 kilometers beneath the surface. Seismic techniques for looking into the Earth's interior are familiar to most people, and they have been used in the Pacific Northwest as part of the USA wide Earthscope program. However, other methods of imaging the Earth, such as the magnetotelluric (MT) method, can provide information regarding the thermal structure of the Earth and can pinpoint areas containing deep released fluids and molten rock. MT uses naturally occurring electric currents generated by lightning activity and by solar wind-ionospheric interactions, to estimate Earth's electrical conductivity. Conductivity in turn depends partly on composition and temperature, but it can be dramatically increased by small amounts of fluid or melt provided that they form an interconnected network. The EarthScope program has also established an array of MT stations over the U.S. Cascadia subduction system, but the existing coverage lacks the spatial resolution to address some of the key issues related to the dynamics of the subduction zone. To rectify this situation, scientists from the University of Utah and Woods Hole Oceanographic Institute are collecting a dense profile of MT stations across west-central Washington State coincident with a previously recorded seismic profile, to rectify this situation. The co-located seismic data will allow the development of techniques for jointly interpreting the two complementary techniques and will provide insights into the understanding of the evolution of the Cascadia subduction system. Societal benefits associated with this research include applications to understanding of processes that contribute to seismic and volcanic hazards associated with the Cascadia subduction system, contributions to research infrastructure, and training of graduate students.
该奖项根据 2009 年美国复苏和再投资法案(公法 111-5)提供资金。太平洋西北地区,尤其是华盛顿州,以称为卡斯卡迪亚俯冲系统的俯冲带环境为特征。卡斯卡迪亚俯冲系统是地球上的一个区域,海底正在与北美大陆的地壳碰撞并被推到地壳以下。大陆下方海底的循环是一个复杂的过程:海底的碰撞和下降可能会引起大地震、缓慢滑动和颤动,以及火山喷发,例如圣海伦斯火山和堡垒山的火山喷发。为了了解这些潜在的破坏性过程,需要对地震、流体释放和融化触发点(地表以下 200 公里的深度)的地球内部结构进行成像。大多数人都熟悉用于观察地球内部的地震技术,并且作为美国地球范围计划的一部分,这些技术已在太平洋西北地区使用。然而,其他地球成像方法,例如大地电磁 (MT) 方法,可以提供有关地球热结构的信息,并可以查明含有深层释放流体和熔岩的区域。 MT 利用闪电活动和太阳风与电离层相互作用产生的自然电流来估计地球的电导率。电导率又部分取决于成分和温度,但只要少量流体或熔体形成互连网络,电导率就可以显着提高。 EarthScope 计划还在美国卡斯卡迪亚俯冲系统上建立了一系列 MT 站,但现有的覆盖范围缺乏空间分辨率,无法解决与俯冲带动态相关的一些关键问题。为了纠正这种情况,犹他大学和伍兹霍尔海洋研究所的科学家正在收集华盛顿州中西部地区与先前记录的地震剖面相一致的密集MT站剖面,以纠正这种情况。同一地点的地震数据将有助于开发联合解释这两种互补技术的技术,并将为理解卡斯卡迪亚俯冲系统的演化提供见解。与这项研究相关的社会效益包括应用于理解与卡斯卡迪亚俯冲系统相关的地震和火山灾害的过程、对研究基础设施的贡献以及研究生的培训。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

Philip Wannamaker其他文献

Philip Wannamaker的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('Philip Wannamaker', 18)}}的其他基金

Magma Sources, Residence and Pathways of Mount Erebus Phonolitic Volcano, Antarctica, from Magnetotelluric Resistivity Structure
从大地电磁电阻率结构看南极洲埃里伯斯火山的岩浆源、居住地和路径
  • 批准号:
    1443522
  • 财政年份:
    2015
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Standard Grant
Geodynamics and Thermal Regime across the Central Transantarctic Mountains from Analysis of Magnetotelluric Measurements
从大地电磁测量分析中跨南极中部山脉的地球动力学和热力状况
  • 批准号:
    1243559
  • 财政年份:
    2012
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Standard Grant
Collaborative Research: Geophysical Investigation of the Mid-Continent Rift System
合作研究:中部大陆裂谷系统地球物理调查
  • 批准号:
    1148081
  • 财政年份:
    2012
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Continuing Grant
Modes of Extension, Magmatism and Crustal Scale Fluid Pathways in the Great Basin province, USA, from a Magnetotelluric Transect
美国大盆地省的伸展模式、岩浆作用和地壳流体通道(来自大地电磁断面)
  • 批准号:
    0838043
  • 财政年份:
    2009
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Continuing Grant
Rift Mechanisms and Thermal Regime of the Lithosphere across Beardmore Glacier Region, Central Transantarctic Mountains, from Magnetotelluric Measurements
大地电磁测量显示横贯南极山脉中部比尔德莫尔冰川地区岩石圈的裂谷机制和热状况
  • 批准号:
    0838914
  • 财政年份:
    2009
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Standard Grant
Whither the Transportable Magnetotelluric (MT) Array: Proposal for an EarthScope Community Workshop to Prioritize Targets for Transportable MT Deployments
可移动大地电磁 (MT) 阵列的去向:关于召开 EarthScope 社区研讨会的提案,以优先考虑可移动大地电磁 (MT) 部署的目标
  • 批准号:
    0746025
  • 财政年份:
    2008
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Standard Grant
Deformation, Fluid Generation, and Seismogenesis in a Transitional Subduction Environment, the Marlborough Region, New Zealand, Revealed with a Magnetotelluric Resistivity Transect
大地电磁电阻率断面揭示了新西兰马尔伯勒地区过渡俯冲环境中的变形、流体生成和地震成因
  • 批准号:
    0440050
  • 财政年份:
    2005
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Continuing Grant
Modes of Lithospheric Extensional Consumption and Magmatism: Testing for End-member Cases at the Great Basin-Colorado Plateau Transition with a Magnetotelluric Resistivity Transect
岩石圈伸展消耗和岩浆作用模式:用大地电磁电阻率断面测试大盆地-科罗拉多高原过渡区的端元情况
  • 批准号:
    0230027
  • 财政年份:
    2003
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Standard Grant
Collaborative Research: Electromagnetic Studies of the Continents (EMSOC): National Instrument Facility
合作研究:大陆电磁研究(EMSOC):国家仪器设施
  • 批准号:
    0236553
  • 财政年份:
    2003
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Continuing Grant
Collaborative Research: Magnetotelluric Transect of a Modern Continent-Continent Collisional Orogen: The SouthernAlps, New Zealand
合作研究:现代大陆-大陆碰撞造山带的大地电磁断面:新西兰南阿尔卑斯山
  • 批准号:
    9725883
  • 财政年份:
    1998
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Standard Grant

相似国自然基金

Research on Quantum Field Theory without a Lagrangian Description
  • 批准号:
    24ZR1403900
  • 批准年份:
    2024
  • 资助金额:
    0.0 万元
  • 项目类别:
    省市级项目
Cell Research
  • 批准号:
    31224802
  • 批准年份:
    2012
  • 资助金额:
    24.0 万元
  • 项目类别:
    专项基金项目
Cell Research
  • 批准号:
    31024804
  • 批准年份:
    2010
  • 资助金额:
    24.0 万元
  • 项目类别:
    专项基金项目
Cell Research (细胞研究)
  • 批准号:
    30824808
  • 批准年份:
    2008
  • 资助金额:
    24.0 万元
  • 项目类别:
    专项基金项目
Research on the Rapid Growth Mechanism of KDP Crystal
  • 批准号:
    10774081
  • 批准年份:
    2007
  • 资助金额:
    45.0 万元
  • 项目类别:
    面上项目

相似海外基金

Collaborative Research: A synthesis of EarthScope educational resources integrated into the "Alaska Native Geoscience Learning Experience"
协作研究:将 EarthScope 教育资源综合整合到“阿拉斯加本土地球科学学习体验”中
  • 批准号:
    1735954
  • 财政年份:
    2017
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Standard Grant
Collaborative Research: A synthesis of EarthScope educational resources integrated into the "Alaska Native Geoscience Learning Experience"
协作研究:将 EarthScope 教育资源综合整合到“阿拉斯加本土地球科学学习体验”中
  • 批准号:
    1736021
  • 财政年份:
    2017
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Standard Grant
Collaborative Research: A synthesis of EarthScope educational resources integrated into the Alaska Native Geoscience Learning Experience
协作研究:将 EarthScope 教育资源整合到阿拉斯加本地地球科学学习体验中
  • 批准号:
    1736112
  • 财政年份:
    2017
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Standard Grant
Collaborative Research: Capitalizing on EarthScope Transportable Array Data to Better Characterize Induced Seismic Sequences
合作研究:利用 EarthScope 可移动阵列数据更好地表征诱发地震序列
  • 批准号:
    1460232
  • 财政年份:
    2015
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Standard Grant
Collaborative Research: Capitalizing on EarthScope Transportable Array Data to Better Characterize Induced Seismic Sequences
合作研究:利用 EarthScope 可移动阵列数据更好地表征诱发地震序列
  • 批准号:
    1460360
  • 财政年份:
    2015
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Standard Grant
Collaborative Research: EarthScope Geochronology Graduate Student Training Program
合作研究:EarthScope地质年代学研究生培训计划
  • 批准号:
    1358554
  • 财政年份:
    2014
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Continuing Grant
Collaborative Research: EarthScope Geochronology Graduate Student Training Program
合作研究:EarthScope地质年代学研究生培训计划
  • 批准号:
    1358443
  • 财政年份:
    2014
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Continuing Grant
Collaborative Research: EarthScope Geochronology Graduate Student Training Program
合作研究:EarthScope地质年代学研究生培训计划
  • 批准号:
    1358401
  • 财政年份:
    2014
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Continuing Grant
Collaborative Research: EarthScope Geochronology Graduate Student Training Program
合作研究:EarthScope地质年代学研究生培训计划
  • 批准号:
    1358514
  • 财政年份:
    2014
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Continuing Grant
Collaborative Research: Featuring EarthScope in Coastal Cascadia Earthquake and Tsunami Hazards Education by Linking Teachers, Interpreters, and Emergency Managers
合作研究:通过联系教师、口译员和应急管理人员,在卡斯卡迪亚沿海地震和海啸灾害教育中使用 EarthScope
  • 批准号:
    1250563
  • 财政年份:
    2013
  • 资助金额:
    $ 37.5万
  • 项目类别:
    Continuing Grant
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了