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.

通过日本科学研究院和东北大学的实验，在与地壳上部18公里有关的P-T条件下，对模拟的石英-长石断层的强度和稳定性进行了测试。所有的力学数据都显示出摩擦系数为0.7-0.8，具有速度强化行为。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。这为局部剪切变形和局部熔体生成提供了证据。

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: Sae Onodera;Takuya Hida;Yosuke Kurihara;Satoshi Kumagai;Toshiyuki Matsumoto;Ryosuke Nakajima;B. A. Verberne
• 通讯作者: B. A. Verberne

Nanocrystalline Principal Slip Zones and Their Role in Controlling Crustal Fault Rheology

• DOI: 10.3390/min9060328
• 发表时间: 2019-05
• 期刊: Minerals
• 影响因子: 2.5
• 作者: B. Verberne;O. Plümper;C. Spiers

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

• DOI: 10.1029/2019jb018702
• 发表时间: 2019-12
• 期刊: Journal of Geophysical Research: Solid Earth
• 作者: R. Pijnenburg;B. Verberne;S. Hangx;C. Spiers

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

• DOI: 10.1029/2018jb017205
• 发表时间: 2019-05
• 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

Simulated quartz-feldspar faults sheared under conditions spanning the brittle-plastic transition

模拟石英长石断层在跨越脆塑性转变的条件下剪切

• 发表时间: 2019
• 作者: Ryosuke Nakajima;Riho Yamamoto;Takuya Hida;Toshiyuki Matsumoto;長野県大鹿村地域の三波川―みかぶー秩父帯の付加・変成コンプレックスの構造発達史;B. A. Verberne
• 通讯作者: B. A. Verberne