Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL071932 |
Water vaporization promotes coseismic fluid pressurization and buffers temperature rise | |
Chen, Jianye1,2; Niemeijer, Andre2; Yao, Lu1; Ma, Shengli1 | |
2017-03-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Netherlands |
英文摘要 | We investigated the frictional properties of carbonate-rich gouge layers at a slip rate of 1.3m/s, under dry and water-saturated conditions, while monitoring temperature at different locations on one of the gouge-host rock interfaces. All experiments showed a peak frictional strength of 0.4-0.7, followed by strong slip weakening to steady state values of 0.1-0.3. Experiments which used a pore fluid with a constant drainage path to the atmosphere showed the development of a temperature plateau beyond 100 degrees C, contemporaneous with the dynamic slip weakening and consistent with thermodynamic considerations of ongoing vaporization of pore water. Upon pore fluid vaporization, the pore pressure increases, while the temperature is buffered endothermically, such that the pore water moves along the liquid-vapor transition curve in a pressure-temperature phase diagram. Pore fluid phase transitions of this kind are expected to occur in natural earthquakes at relatively shallow crustal levels, enhancing fluid pressurization while impeding the achievement of high temperatures. Therefore, the operation of vaporization may help explain the low downhole temperature anomalies obtained shortly after large earthquakes. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398183700015 |
WOS关键词 | VELOCITY FRICTION EXPERIMENTS ; THERMAL PRESSURIZATION ; SEISMIC SLIP ; FAULT ; EARTHQUAKE ; FLUIDIZATION ; BEHAVIOR ; REVERSE ; GOUGE |
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/27553 |
专题 | 气候变化 |
作者单位 | 1.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing, Peoples R China; 2.Univ Utrecht, Dept Earth Sci, HPT Lab, Utrecht, Netherlands |
推荐引用方式 GB/T 7714 | Chen, Jianye,Niemeijer, Andre,Yao, Lu,et al. Water vaporization promotes coseismic fluid pressurization and buffers temperature rise[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(5). |
APA | Chen, Jianye,Niemeijer, Andre,Yao, Lu,&Ma, Shengli.(2017).Water vaporization promotes coseismic fluid pressurization and buffers temperature rise.GEOPHYSICAL RESEARCH LETTERS,44(5). |
MLA | Chen, Jianye,et al."Water vaporization promotes coseismic fluid pressurization and buffers temperature rise".GEOPHYSICAL RESEARCH LETTERS 44.5(2017). |
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