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Slow slip source characterized by lithological and geometric heterogeneity
Slow slip events (SSEs) accommodate a significant proportion of tectonic plate motion at subduction zones, yet little is known about the faults that actually host them. The shallow depth (<2 km) of well-documented SSEs at the Hikurangi subduction zone offshore New Zealand offers a unique opportun...
Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7096157/ https://www.ncbi.nlm.nih.gov/pubmed/32232148 http://dx.doi.org/10.1126/sciadv.aay3314 |
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author | Barnes, Philip M. Wallace, Laura M. Saffer, Demian M. Bell, Rebecca E. Underwood, Michael B. Fagereng, Ake Meneghini, Francesca Savage, Heather M. Rabinowitz, Hannah S. Morgan, Julia K. Kitajima, Hiroko Kutterolf, Steffen Hashimoto, Yoshitaka Engelmann de Oliveira, Christie H. Noda, Atsushi Crundwell, Martin P. Shepherd, Claire L. Woodhouse, Adam D. Harris, Robert N. Wang, Maomao Henrys, Stuart Barker, Daniel H.N. Petronotis, Katerina E. Bourlange, Sylvain M. Clennell, Michael B. Cook, Ann E. Dugan, Brandon E. Elger, Judith Fulton, Patrick M. Gamboa, Davide Greve, Annika Han, Shuoshuo Hüpers, Andre Ikari, Matt J. Ito, Yoshihiro Kim, Gil Young Koge, Hiroaki Lee, Hikweon Li, Xuesen Luo, Min Malie, Pierre R. Moore, Gregory F. Mountjoy, Joshu J. McNamara, David D. Paganoni, Matteo Screaton, Elizabeth J. Shankar, Uma Shreedharan, Srisharan Solomon, Evan A. Wang, Xiujuan Wu, Hung-Yu Pecher, Ingo A. LeVay, Leah J. |
author_facet | Barnes, Philip M. Wallace, Laura M. Saffer, Demian M. Bell, Rebecca E. Underwood, Michael B. Fagereng, Ake Meneghini, Francesca Savage, Heather M. Rabinowitz, Hannah S. Morgan, Julia K. Kitajima, Hiroko Kutterolf, Steffen Hashimoto, Yoshitaka Engelmann de Oliveira, Christie H. Noda, Atsushi Crundwell, Martin P. Shepherd, Claire L. Woodhouse, Adam D. Harris, Robert N. Wang, Maomao Henrys, Stuart Barker, Daniel H.N. Petronotis, Katerina E. Bourlange, Sylvain M. Clennell, Michael B. Cook, Ann E. Dugan, Brandon E. Elger, Judith Fulton, Patrick M. Gamboa, Davide Greve, Annika Han, Shuoshuo Hüpers, Andre Ikari, Matt J. Ito, Yoshihiro Kim, Gil Young Koge, Hiroaki Lee, Hikweon Li, Xuesen Luo, Min Malie, Pierre R. Moore, Gregory F. Mountjoy, Joshu J. McNamara, David D. Paganoni, Matteo Screaton, Elizabeth J. Shankar, Uma Shreedharan, Srisharan Solomon, Evan A. Wang, Xiujuan Wu, Hung-Yu Pecher, Ingo A. LeVay, Leah J. |
author_sort | Barnes, Philip M. |
collection | PubMed |
description | Slow slip events (SSEs) accommodate a significant proportion of tectonic plate motion at subduction zones, yet little is known about the faults that actually host them. The shallow depth (<2 km) of well-documented SSEs at the Hikurangi subduction zone offshore New Zealand offers a unique opportunity to link geophysical imaging of the subduction zone with direct access to incoming material that represents the megathrust fault rocks hosting slow slip. Two recent International Ocean Discovery Program Expeditions sampled this incoming material before it is entrained immediately down-dip along the shallow plate interface. Drilling results, tied to regional seismic reflection images, reveal heterogeneous lithologies with highly variable physical properties entering the SSE source region. These observations suggest that SSEs and associated slow earthquake phenomena are promoted by lithological, mechanical, and frictional heterogeneity within the fault zone, enhanced by geometric complexity associated with subduction of rough crust. |
format | Online Article Text |
id | pubmed-7096157 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-70961572020-03-30 Slow slip source characterized by lithological and geometric heterogeneity Barnes, Philip M. Wallace, Laura M. Saffer, Demian M. Bell, Rebecca E. Underwood, Michael B. Fagereng, Ake Meneghini, Francesca Savage, Heather M. Rabinowitz, Hannah S. Morgan, Julia K. Kitajima, Hiroko Kutterolf, Steffen Hashimoto, Yoshitaka Engelmann de Oliveira, Christie H. Noda, Atsushi Crundwell, Martin P. Shepherd, Claire L. Woodhouse, Adam D. Harris, Robert N. Wang, Maomao Henrys, Stuart Barker, Daniel H.N. Petronotis, Katerina E. Bourlange, Sylvain M. Clennell, Michael B. Cook, Ann E. Dugan, Brandon E. Elger, Judith Fulton, Patrick M. Gamboa, Davide Greve, Annika Han, Shuoshuo Hüpers, Andre Ikari, Matt J. Ito, Yoshihiro Kim, Gil Young Koge, Hiroaki Lee, Hikweon Li, Xuesen Luo, Min Malie, Pierre R. Moore, Gregory F. Mountjoy, Joshu J. McNamara, David D. Paganoni, Matteo Screaton, Elizabeth J. Shankar, Uma Shreedharan, Srisharan Solomon, Evan A. Wang, Xiujuan Wu, Hung-Yu Pecher, Ingo A. LeVay, Leah J. Sci Adv Research Articles Slow slip events (SSEs) accommodate a significant proportion of tectonic plate motion at subduction zones, yet little is known about the faults that actually host them. The shallow depth (<2 km) of well-documented SSEs at the Hikurangi subduction zone offshore New Zealand offers a unique opportunity to link geophysical imaging of the subduction zone with direct access to incoming material that represents the megathrust fault rocks hosting slow slip. Two recent International Ocean Discovery Program Expeditions sampled this incoming material before it is entrained immediately down-dip along the shallow plate interface. Drilling results, tied to regional seismic reflection images, reveal heterogeneous lithologies with highly variable physical properties entering the SSE source region. These observations suggest that SSEs and associated slow earthquake phenomena are promoted by lithological, mechanical, and frictional heterogeneity within the fault zone, enhanced by geometric complexity associated with subduction of rough crust. American Association for the Advancement of Science 2020-03-25 /pmc/articles/PMC7096157/ /pubmed/32232148 http://dx.doi.org/10.1126/sciadv.aay3314 Text en Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Research Articles Barnes, Philip M. Wallace, Laura M. Saffer, Demian M. Bell, Rebecca E. Underwood, Michael B. Fagereng, Ake Meneghini, Francesca Savage, Heather M. Rabinowitz, Hannah S. Morgan, Julia K. Kitajima, Hiroko Kutterolf, Steffen Hashimoto, Yoshitaka Engelmann de Oliveira, Christie H. Noda, Atsushi Crundwell, Martin P. Shepherd, Claire L. Woodhouse, Adam D. Harris, Robert N. Wang, Maomao Henrys, Stuart Barker, Daniel H.N. Petronotis, Katerina E. Bourlange, Sylvain M. Clennell, Michael B. Cook, Ann E. Dugan, Brandon E. Elger, Judith Fulton, Patrick M. Gamboa, Davide Greve, Annika Han, Shuoshuo Hüpers, Andre Ikari, Matt J. Ito, Yoshihiro Kim, Gil Young Koge, Hiroaki Lee, Hikweon Li, Xuesen Luo, Min Malie, Pierre R. Moore, Gregory F. Mountjoy, Joshu J. McNamara, David D. Paganoni, Matteo Screaton, Elizabeth J. Shankar, Uma Shreedharan, Srisharan Solomon, Evan A. Wang, Xiujuan Wu, Hung-Yu Pecher, Ingo A. LeVay, Leah J. Slow slip source characterized by lithological and geometric heterogeneity |
title | Slow slip source characterized by lithological and geometric heterogeneity |
title_full | Slow slip source characterized by lithological and geometric heterogeneity |
title_fullStr | Slow slip source characterized by lithological and geometric heterogeneity |
title_full_unstemmed | Slow slip source characterized by lithological and geometric heterogeneity |
title_short | Slow slip source characterized by lithological and geometric heterogeneity |
title_sort | slow slip source characterized by lithological and geometric heterogeneity |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7096157/ https://www.ncbi.nlm.nih.gov/pubmed/32232148 http://dx.doi.org/10.1126/sciadv.aay3314 |
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