Permeability control on transient slip weakening during gypsum dehydration: Implications for earthquakes in subduction zones
详细信息 查看全文
- 作者：Henri Leclè ; re ; henri.leclere@liverpool.ac.uk" class="auth_mail" title="E-mail the corresponding author ; Daniel Faulkner ; John Wheeler ; Elisabetta Mariani
- 关键词：gypsum dehydration ; Riedel shear ; permeability ; slip weakening ; pore-fluid pressure
- 刊名：Earth and Planetary Science Letters
- 出版年：2016
- 出版时间：15 May 2016
- 年：2016
- 卷：442
- 期：Complete
- 页码：1-12
- 全文大小：4498 K
文摘
- •
First experiments where shear stress, pore pressure and permeability are simultaneously measured during a dehydration reaction.
- •
Dehydration product is preferentially localized along R1 Riedel shears.
- •
Gypsum dehydration induces transient slip weakening controlled by permeability and pore-fluid pressure evolution.
- •
Fluid pressure pulse can be generated by permeability changes during gypsum dehydration.
- •
Conditions necessary for unstable slip during dehydration are identified.