Effects of dehydration of clay minerals on seismic slip

粘土矿物脱水对地震滑移的影响

• 批准号: 21340150
• 负责人: UJIIE Kohtaro
• 金额: $ 4.33万
• 依托单位: University of Tsukuba (2010-2011)Japan Agency for Marine-Earth Science and Technology (2009)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21340150/
• 关键词: 地震すべり; 摩擦発熱; 粘土質断層ガウジ; すべり弱化; 流動化; 高速摩擦実験; 断層流動化; 高速せん断摩擦; 粘土鉱物; 流体

Faults are commonly dominated by clay minerals. To understand frictional response associated with rupture propagation from deep depths, we conducted high-velocity friction experiments on clay-rich fault material. The results show that the frictional strength decreases with displacement due to dehydration of clay minerals. This would enhance rupture propagation toward seafloor and tsunami generation.

断层通常以粘土矿物为主。为了了解与深层破裂传播相关的摩擦响应，我们对富含粘土的断层材料进行了高速摩擦实验。结果表明，由于粘土矿物脱水，摩擦强度随着位移而降低。这将增强破裂向海底的传播和海啸的产生。

项目成果

Experimental and microstructural investigations of frictional heating and fluidization in clay-rich fault gouge

富粘土断层泥中摩擦生热和流化的实验和微观结构研究

• 发表时间: 2011
• 作者: 伊藤純至;新野宏;中西幹郎;氏家恒太郎
• 通讯作者: 氏家恒太郎

High-velocity frictional properties and microstructures of clay-rich fault gouge in megasplay fault zone

巨型断层带富粘土断层泥高速摩擦特性及微观结构

• 发表时间: 2010
• 作者: Ujiie;K
• 通讯作者: K

Experimental investigation of frictional melting of argillite at high slip rates: Implications for seismic slip in subduction‐accretion complexes

• DOI: 10.1029/2008jb006165
• 发表时间: 2009-04
• 期刊: Journal of Geophysical Research
• 作者: K. Ujiie;A. Tsutsumi;Y. Fialko;H. Yamaguchi

High-velocity frictional properties of clay-rich fault gouge in a megasplay fault zone, Nankai subduction zone

• DOI: 10.1029/2010gl046002
• 发表时间: 2010-12-29
• 期刊: GEOPHYSICAL RESEARCH LETTERS
• 影响因子: 5.2
• 作者: Ujiie, Kohtaro;Tsutsumi, Akito
• 通讯作者: Tsutsumi, Akito

Friction velocity dependence of clay-rich fault material along a megasplay fault in the Nankai subduction zone at intermediate to high velocities

南开俯冲带巨型张断层富粘土断层物质中高速摩擦速度依赖性

• DOI: 10.1029/2011gl049314
• 发表时间: 2011
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Tsutsumi;A.;Fabbri;O.;Karpoff;A. M.;Ujiie;K. and Tsujimoto;A
• 通讯作者: A