Material-physical processes controlling fault-slip at the depth limits of the seismogenic zone

控制地震带深度极限处断层滑移的物质物理过程

• 批准号: 19K14823
• 负责人: Verberne Berend
• 金额: $ 2.66万
• 依托单位: National Institute of Advanced Industrial Science and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2019
• 资助国家: 日本
• 起止时间: 2019-04-01 至 2020-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-19K14823/
• 关键词: quartz; feldspar; seismogenic zone; earthquake; shear deformation; fault slip; localization; friction; creep

The strength and stability of simulated quartz-feldspar faults was tested under P-T conditions pertaining to the upper 18 km of the crust, through experiments at AIST and at Tohoku university. All mechanical data show a friction coefficient of 0.7-0.8 and velocity strengthening behavior. Fragments of samples deformed at the Tohoku lab were investigated using incident light and scanning electron microscopy. These show evidence for localized shear deformation and local melt generation.

通过 AIST 和东北大学的实验，在地壳上部 18 公里的 P-T 条件下测试了模拟石英长石断层的强度和稳定性。所有机械数据均显示摩擦系数为 0.7-0.8 且速度增强。使用入射光和扫描电子显微镜对东北实验室变形的样品碎片进行了研究。这些显示了局部剪切变形和局部熔化生成的证据。

项目成果

Fault rheology at the depth limits of the seismogenic zone

地震带深度极限的断层流变学

• 发表时间: 2019
• 作者: B. A. Verberne

Inelastic Deformation of the Slochteren Sandstone: Stress‐Strain Relations and Implications for Induced Seismicity in the Groningen Gas Field

Slochteren 砂岩的非弹性变形：应力应变关系及其对格罗宁根气田诱发地震活动的影响

• DOI: 10.1029/2019jb017366
• 发表时间: 2019-05-01
• 期刊: Journal of Geophysical Research: Solid Earth
• 作者: R. Pijnenburg;B. Verberne;S. Hangx;C. Spiers
• 通讯作者: C. Spiers

Intergranular Clay Films Control Inelastic Deformation in the Groningen Gas Reservoir: Evidence From Split‐Cylinder Deformation Tests

粒间粘土膜控制格罗宁根气藏的非弹性变形：来自分体圆筒变形测试的证据

• DOI: 10.1029/2019jb018702
• 发表时间: 2019
• 作者: R. P. J. Pijnenburg; Berend A Verberne; et al.
• 通讯作者: et al.

Frictional Properties of Simulated Chlorite Gouge at Hydrothermal Conditions: Implications for Subduction Megathrusts

热液条件下模拟绿泥石泥的摩擦特性：对俯冲巨型逆冲断层的影响

• DOI: 10.1029/2018jb017205
• 发表时间: 2019-05-01
• 期刊: Journal of Geophysical Research: Solid Earth
• 作者: Ayumi S. Okamoto;B. Verberne;A. Niemeijer;M. Takahashi;Ichiko Shimizu;T. Ueda;C. Spiers
• 通讯作者: C. Spiers

Fault rheology at the depth limits of the seismogenic zone

地震带深度极限的断层流变学

• 发表时间: 2019
• 作者: B. A. Verberne