Upgrade of a Triaxial Rock Deformation Apparatus to Measure the Rheology of Subduction Megathrusts

升级三轴岩石变形仪以测量俯冲巨型逆冲断层的流变学

基本信息

  • 批准号:
    1921517
  • 负责人:
  • 金额:
    $ 10.24万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2019
  • 资助国家:
    美国
  • 起止时间:
    2019-07-01 至 2021-06-30
  • 项目状态:
    已结题

项目摘要

Earthquakes are felt as elastic waves that shake the ground, but the cause of these waves is slip along faults kilometers beneath the surface. Not all faults produce earthquakes, however, and the reasons that some faults slip destructively in earthquakes, whereas others slip so slowly that they do not produce elastic waves are not entirely known. The faults associated with the greatest hazards are found at subduction plate boundaries, such as the Pacific Northwest of the United States. These faults create the largest earthquakes and associated tsunamis, but they are also the least understood. Whether a fault slips destructively or not is controlled by the mechanical properties of the rocks within the fault zone. This proposal will fund the upgrade of equipment that will be used to measure the mechanical properties of rocks from subduction plate boundary faults. The results of these measurements will be used to determine how the rocks present in a given region determine how the faults slip, whether in an earthquake or less destructively. The measurements made by this equipment will, therefore, contribute to improved models of seismic hazards for populous regions, such as the Pacific Northwest.The physical properties of rocks along the subduction plate boundary are thought to affect the depths of transitions between aseismic and seismic slip, and phenomena such as slow slip, low-frequency earthquakes, and tremor. However, there is still considerable uncertainty about which lithologies and which properties control these processes in subduction zones, in part because the minerals present in subduction zones are both more varied and more challenging to study. This award will upgrade a triaxial rock deformation apparatus donated to Rice University for the purpose of studying the constitutive behavior of rocks present along the subduction plate boundary. The apparatus will be used to measure the constitutive behavior at temperatures that span the seismogenic zone (500 degrees C) and over 8 orders of magnitude in strain rate. These constitutive relations can then be used in models of fault slip along subduction megathrusts to understand how far landward and seaward earthquakes might propagate, which will inform seismic hazards associated with ground shaking and tsunamis, respectively. The project will fund the development of a rock deformation laboratory by an early career PI and the upgraded apparatus will be used by students to conduct their thesis research. Lab members will communicate to the public about this research through a social media account.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
地震可以感觉到是震动地面的弹性波,但这些波的原因是沿着地表下几公里处的断层滑动。然而,并不是所有的断层都会产生地震,一些断层在地震中会破坏性地滑动,而另一些断层滑动得如此缓慢以至于不会产生弹性波的原因并不完全为人所知。与最大危险相关的断层被发现在俯冲板块边界,如美国的太平洋西北部。这些断层造成了最大的地震和相关的海啸,但人们对它们的了解也最少。断裂带内岩石的力学性质控制着断裂带是否发生破坏性滑动。这项提议将为升级设备提供资金,这些设备将用于测量俯冲板块边界断层岩石的力学性质。这些测量的结果将被用来确定给定地区的岩石如何确定断层如何滑动,无论是在地震中还是破坏性较小的情况下。因此,该设备所做的测量将有助于改进人口稠密地区的地震灾害模型,如太平洋西北部。俯冲板块边界上岩石的物理性质被认为影响到无地震和地震滑动之间的过渡深度,以及诸如慢滑、低频地震和震动等现象。然而,对于哪些岩性和哪些性质控制着俯冲带中的这些过程,仍然存在相当大的不确定性,部分原因是俯冲带中存在的矿物种类更多,研究起来也更具挑战性。这一奖项将升级捐赠给莱斯大学的三轴岩石形变仪器,目的是研究俯冲板块边界上存在的岩石的本构行为。该仪器将用于测量跨越地震孕育区(500摄氏度)和超过8个数量级的应变率的温度下的本构行为。然后,这些本构关系可以用于沿俯冲巨型逆冲的断层滑动模型,以了解向陆地和向海洋的地震可能传播多远,这将分别告知与地面震动和海啸相关的地震危险。该项目将为早期职业发展的岩石变形实验室提供资金,升级后的仪器将用于学生进行论文研究。实验室成员将通过社交媒体账户与公众交流这项研究。这一奖项反映了NSF的法定使命,并通过使用基金会的智力优势和更广泛的影响审查标准进行评估,被认为值得支持。

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 }}

Melodie French其他文献

Melodie French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('Melodie French', 18)}}的其他基金

TS: Research Technician to Support Growth of the Rice Rock Deformation Laboratory
TS:支持水稻岩石变形实验室发展的研究技术员
  • 批准号:
    2308632
  • 财政年份:
    2023
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Continuing Grant
CAREER: Path Dependent Slip of the Shallow Subduction Megathrust
事业:浅俯冲巨型逆冲断层的路径相关滑动
  • 批准号:
    1945264
  • 财政年份:
    2020
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Continuing Grant
Controls of Pore Fluid Pressure on Fault Slip Weakening and Fracture Energy
孔隙流体压力对断层滑动弱化和断裂能的控制
  • 批准号:
    1759127
  • 财政年份:
    2018
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Standard Grant
An Experimental Study on the Role of Pore Fluid Pressure During Slow Slip in Subduction Zones
俯冲带慢滑移过程中孔隙流体压力作用的实验研究
  • 批准号:
    1452339
  • 财政年份:
    2015
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Fellowship Award

相似海外基金

Development of a Vessel for Triaxial Compression Test of Rock under Ultra-low Temperatures
超低温岩石三轴压缩试验容器的研制
  • 批准号:
    17K06551
  • 财政年份:
    2017
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
MRI: Acquisition of a Rock Triaxial Testing System
MRI:购买岩石三轴测试系统
  • 批准号:
    1228738
  • 财政年份:
    2012
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Standard Grant
Observation of in and out flow from rock specimens and estimation ofthe permeability under the triaxial compression
三轴压缩下岩石样本进出流观测及渗透率估算
  • 批准号:
    20360404
  • 财政年份:
    2008
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Investigation and modeling of mechanical characteristics of non-uniform and discontinuous rock mass in deep ground by in-situ triaxial tests
原位三轴试验研究深部非均匀不连续岩体力学特性并建模
  • 批准号:
    13355021
  • 财政年份:
    2001
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Triaxial/AE cell to couple acoustic emisssion monitoring and the pre- and post-peak response of rock
三轴/声发射单元耦合声发射监测和岩石的峰值前和峰值后响应
  • 批准号:
    230054-2000
  • 财政年份:
    1999
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Research Tools and Instruments - Category 1 (<$150,000)
Fundamental Study on Compact Triaxial Compression Test for In-situ Rock Mass.
原位岩体致密三轴压缩试验基础研究。
  • 批准号:
    09650554
  • 财政年份:
    1997
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Triaxial rock deformation rig and fluid-rock interactons in shear zones
三轴岩石变形装置和剪切带中的流体-岩石相互作用
  • 批准号:
    197198-1997
  • 财政年份:
    1996
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Research Tools and Instruments - Category 1 (<$150,000)
Progress and distribution of lateral displacement of rock specimen undre the triaxial compression test
三轴压缩试验中岩石试件侧向位移的进展及分布
  • 批准号:
    08455485
  • 财政年份:
    1996
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Study on the kaiser effect of rock-like materials under triaxial compression
三轴压缩下类岩石材料凯塞效应研究
  • 批准号:
    04650443
  • 财政年份:
    1992
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
High Temperature Triaxial-Torsional Load Cell For Rock Mechanics Research
用于岩石力学研究的高温三轴扭转称重传感器
  • 批准号:
    8315921
  • 财政年份:
    1983
  • 资助金额:
    $ 10.24万
  • 项目类别:
    Standard Grant
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了