Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091807 |
Period‐multiplying cycles at the transition between stick‐slip and stable sliding and implications for the Parkfield period‐doubling tremors | |
Cheng Mei; Sylvain Barbot; Wei Wu | |
2021-02-09 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | The recurrence patterns of the Parkfield tremors with period‐multiplying slow and fast ruptures provide new insights on the physics of earthquake cycles. However, the mechanisms behind the peculiar recurrence pattern and the coupling between slow‐slip events and seismic radiations are still unclear. Here, we conduct direct‐shear experiments on polycarbonate and granite fractures under varying stress conditions to investigate the variations of rupture properties near the stability transition. Laboratory slow and fast ruptures sequences produce slip‐predictable period‐multiplying cycles with correlative acoustic energy release, stress drop, event duration, and recurrence intervals. However, gouge accumulation by damage of the granite fracture provokes changes in stiffness and stress drops ratios over multiple cycles, affecting the recurrence intervals and energy release of consecutive slip events. These findings confirm the link between low‐frequency earthquakes and underlying slow‐slip events, with period‐multiplying cycles naturally occurring near the stability transition. |
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/313876 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Cheng Mei,Sylvain Barbot,Wei Wu. Period‐multiplying cycles at the transition between stick‐slip and stable sliding and implications for the Parkfield period‐doubling tremors[J]. Geophysical Research Letters,2021. |
APA | Cheng Mei,Sylvain Barbot,&Wei Wu.(2021).Period‐multiplying cycles at the transition between stick‐slip and stable sliding and implications for the Parkfield period‐doubling tremors.Geophysical Research Letters. |
MLA | Cheng Mei,et al."Period‐multiplying cycles at the transition between stick‐slip and stable sliding and implications for the Parkfield period‐doubling tremors".Geophysical Research Letters (2021). |
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