Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL086767 |
Direct evidence for fluid pressure, dilatancy, and compaction affecting slip in isolated faults | |
B. Proctor; D. A. Lockner; B. D. Kilgore; T. M. Mitchell; N. M. Beeler | |
2020-06-24 | |
发表期刊 | Geophysical Research Letters
![]() |
出版年 | 2020 |
英文摘要 | Earthquake instability occurs as a result of strength loss during sliding on a fault. It has been known for over 50 years that fault compaction or dilatancy may cause significant weakening or strengthening by dramatically changing the fluid pressure trapped in faults. Despite this fundamental importance, we have no real understanding of the exact conditions that lead to compaction or dilation during nucleation or rupture. To date, no direct measurements of pore pressure changes during slip in hydraulically isolated faults have been reported. We show direct examples of fluid pressure variations during nucleation and rupture using a miniature pressure transducer embedded in an experimental fault. We demonstrate that fluids are not only significant in controlling fault behavior, but can provide the dominant mechanism controlling fault stability. The effect of fluid pressure changes can exceed frictional variations predicted by rate‐ and state‐dependent friction laws, exerting fundamental controls on earthquake rupture initiation. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/278127 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | B. Proctor,D. A. Lockner,B. D. Kilgore,et al. Direct evidence for fluid pressure, dilatancy, and compaction affecting slip in isolated faults[J]. Geophysical Research Letters,2020. |
APA | B. Proctor,D. A. Lockner,B. D. Kilgore,T. M. Mitchell,&N. M. Beeler.(2020).Direct evidence for fluid pressure, dilatancy, and compaction affecting slip in isolated faults.Geophysical Research Letters. |
MLA | B. Proctor,et al."Direct evidence for fluid pressure, dilatancy, and compaction affecting slip in isolated faults".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论