Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL082892 |
Squeezing Marsquakes Out of Groundwater | |
Manga, Michael1,2; Zhai, Guang1,3; Wang, Chi-Yuen1 | |
2019-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:12页码:6333-6340 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Pore pressure in aquifers confined below a cryosphere will increase as Mars cools and the cryosphere thickens. Increased pore pressure decreases the effective stress and hence promotes seismicity. We calculate the rate of pore pressure change from cooling of Mars's interior and the modulation of pore pressure from solar and Phobos tides and barometric loading. Using the time-varying pressure and tidal stresses, we compute Coulomb stress changes and the expected seismicity rate from a rate-and-state friction model. Seismicity rate will vary by several tens of percent to 2 orders of magnitude if the mean pore pressure is within 0.2 and 0.01 MPa of lithostatic, respectively. Seismic events promoted by high pore pressure may be tremor-like. Documenting (or not) tidally modulated shallow seismicity would provide evidence for (or against) water-filled confined aquifers, that pore pressure is high, and that the state of stress is close to failure-with implications for processes that can deliver water to the Martian surface. |
英文关键词 | induced seismicity InSight water on Mars |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477616300021 |
WOS关键词 | RECURRING SLOPE LINEAE ; DEPENDENT SEISMIC HAZARD ; FLUID INJECTION ; MARS ; WATER ; SURFACE ; ICE ; PRESSURIZATION ; MODULATION ; EVOLUTION |
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/184220 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA; 2.Univ Calif Berkeley, Ctr Integrat Planetary Sci, Berkeley, CA 94720 USA; 3.Univ Calif Berkeley, Berkeley Seismol Lab, Berkeley, CA 94720 USA |
推荐引用方式 GB/T 7714 | Manga, Michael,Zhai, Guang,Wang, Chi-Yuen. Squeezing Marsquakes Out of Groundwater[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(12):6333-6340. |
APA | Manga, Michael,Zhai, Guang,&Wang, Chi-Yuen.(2019).Squeezing Marsquakes Out of Groundwater.GEOPHYSICAL RESEARCH LETTERS,46(12),6333-6340. |
MLA | Manga, Michael,et al."Squeezing Marsquakes Out of Groundwater".GEOPHYSICAL RESEARCH LETTERS 46.12(2019):6333-6340. |
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