Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091856 |
Fast and localized temperature measurements during simulated earthquakes in carbonate rocks | |
Stefano Aretusini; Ará; ntzazu Nú; ñ; ez‐; Cascajero; Elena Spagnuolo; Alberto Tapetado; Carmen Vá; zquez; Giulio Di Toro | |
2021-05-04 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | The understanding of earthquake physics is hindered by the poor knowledge of fault strength and temperature evolution during seismic slip. Experiments reproducing seismic velocity (∼1 m/s) allow us to measure both the evolution of fault strength and the associated temperature increase due to frictional heating. However, temperature measurements were performed with techniques having insufficient spatial and temporal resolution. Here we conduct high velocity friction experiments on Carrara marble rock samples sheared at 20 MPa normal stress, velocity of 0.3 and 6 m/s, and 20 m of total displacement. We measured the temperature evolution of the fault surface at the acquisition rate of 1 kHz and over a spatial resolution of ∼40 µm with an optical fiber conveying the infrared radiation to a two‐color pyrometer. Temperatures up to 1250 °C and low coseismic fault shear strength are compatible with the activation of grain size dependent viscous creep. This article is protected by copyright. All rights reserved. |
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/325826 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Stefano Aretusini,Ará,ntzazu Nú,et al. Fast and localized temperature measurements during simulated earthquakes in carbonate rocks[J]. Geophysical Research Letters,2021. |
APA | Stefano Aretusini.,Ará.,ntzazu Nú.,ñ.,ez‐.,...&Giulio Di Toro.(2021).Fast and localized temperature measurements during simulated earthquakes in carbonate rocks.Geophysical Research Letters. |
MLA | Stefano Aretusini,et al."Fast and localized temperature measurements during simulated earthquakes in carbonate rocks".Geophysical Research Letters (2021). |
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