Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL082093 |
Sensitivity of Acoustic Emission Triggering to Small Pore Pressure Cycling Perturbations During Brittle Creep | |
Chanard, K.1,2; Nicolas, A.2; Hatano, T.3; Petrelis, F.4; Latour, S.5; Vinciguerra, S.6; Schubnel, A.2 | |
2019-07-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:13页码:7414-7423 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Japan; Italy |
英文摘要 | Fluid-induced stress perturbations in the crust at seismogenic depths caused by sources such as tidal or seasonal loading may trigger earthquakes. We investigate the role of small periodic pore pressure (P-p) perturbation in rupture nucleation by performing laboratory triaxial creep experiments on Fontainebleau sandstone, saturated in water, under sinusoidal P-p variations. Results show that recorded acoustic emissions (AEs) correlate with P-p as the rock approaches failure. More interestingly, AEs occur significantly more when P-p is decreasing, that is, when strain rate is maximum with a progressive increase of P-p-AEs correlation in time as the rock approaches failure. This suggests that the correlation of small stress perturbations and AEs not only depends on P-p amplitude but also on the criticality of the rock. Observations at the laboratory scale support field observations where tidal loading may have modulated seismic rates during the nucleation phase of the 2004 Sumatra-Andaman and 2011 Tohoku-Oki earthquakes. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000476960100041 |
WOS关键词 | EARTHQUAKE OCCURRENCE ; SEISMICITY ; VOLCANO ; STRESS ; DRIVEN ; DAMAGE ; TIDES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/185060 |
专题 | 气候变化 |
作者单位 | 1.Univ Paris, Inst Phys Globe Paris, CNRS, IGN, Paris, France; 2.PSL Res Univ, Ecole Normale Super, CNRS, Lab Geol,UMR 8538, Paris, France; 3.Univ Tokyo, Earthquake Res Inst, Tokyo, Japan; 4.PSL Res Univ, Ecole Normale Super, Lab Phys Stat, Paris, France; 5.Univ Paul Sabatier, IRAP, Toulouse, France; 6.Univ Turin, Dept Earth Sci, Turin, Italy |
推荐引用方式 GB/T 7714 | Chanard, K.,Nicolas, A.,Hatano, T.,et al. Sensitivity of Acoustic Emission Triggering to Small Pore Pressure Cycling Perturbations During Brittle Creep[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(13):7414-7423. |
APA | Chanard, K..,Nicolas, A..,Hatano, T..,Petrelis, F..,Latour, S..,...&Schubnel, A..(2019).Sensitivity of Acoustic Emission Triggering to Small Pore Pressure Cycling Perturbations During Brittle Creep.GEOPHYSICAL RESEARCH LETTERS,46(13),7414-7423. |
MLA | Chanard, K.,et al."Sensitivity of Acoustic Emission Triggering to Small Pore Pressure Cycling Perturbations During Brittle Creep".GEOPHYSICAL RESEARCH LETTERS 46.13(2019):7414-7423. |
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