Claire E. Harnett
Fracture and damage localization in volcanic edifice rocks from El Hierro, Stromboli and Tenerife
Harnett, Claire E.; Benson, Philip M.; Rowley, Pete; Fazio, Marco
Authors
Philip M. Benson
Dr Peter Rowley Peter.Rowley@uwe.ac.uk
Senior Lecturer in Physical Geography/Earth Science/ Geology
Marco Fazio
Abstract
© 2018 The Author(s). We present elastic wave velocity and strength data from a suite of three volcanic rocks taken from the volcanic edifices of El Hierro and Tenerife (Canary Islands, Spain), and Stromboli (Aeolian Islands, Italy). These rocks span a range of porosity and are taken from volcanoes that suffer from edifice instability. We measure elastic wave velocities at known incident angles to the generated through-going fault as a function of imposed strain, and examine the effect of the damage zone on P-wave velocity. Such data are important as field measurements of elastic wave tomography are key tools for understanding volcanic regions, yet hidden fractures are likely to have a significant effect on elastic wave velocity. We then use elastic wave velocity evolution to calculate concomitant crack density evolution which ranges from 0 to 0.17: highest values were correlated to the damage zone in rocks with the highest initial porosity.
Citation
Harnett, C. E., Benson, P. M., Rowley, P., & Fazio, M. (2018). Fracture and damage localization in volcanic edifice rocks from El Hierro, Stromboli and Tenerife. Scientific Reports, 8, Article 1942. https://doi.org/10.1038/s41598-018-20442-w
Journal Article Type | Article |
---|---|
Acceptance Date | Jan 10, 2018 |
Online Publication Date | Jan 31, 2018 |
Publication Date | Jan 31, 2018 |
Deposit Date | Jul 8, 2019 |
Publicly Available Date | Jul 8, 2019 |
Journal | Scientific Reports |
Electronic ISSN | 2045-2322 |
Publisher | Nature Research (part of Springer Nature) |
Peer Reviewed | Peer Reviewed |
Volume | 8 |
Article Number | 1942 |
DOI | https://doi.org/10.1038/s41598-018-20442-w |
Keywords | volcanology, rock mecahnics, material physics, fracture, seismic anisotropy, seismology, experimental modelling |
Public URL | https://uwe-repository.worktribe.com/output/1494289 |
Publisher URL | http://doi.org/10.1038/s41598-018-20442-w |
Additional Information | Additional Information : The final publication is available at Nature via https://doi.org/10.1038/s41598-018-20442-w |
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