气候变化领域集成服务门户(CCPortal): The rupture mechanisms of intraslab earthquakes: A multiscale review and re-evaluation

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DOI	10.1016/j.earscirev.2021.103782
	The rupture mechanisms of intraslab earthquakes: A multiscale review and re-evaluation
	Hosseinzadehsabeti E.; Ferré E.C.; Persaud P.; Fabbri O.; Geissman J.W.
发表日期	2021
ISSN	0012-8274
卷号	221
英文摘要	The initiation of intraslab earthquakes and their location depend on multiple factors such as slab heterogeneity, pre-subduction anisotropy, thermal parameters and the metamorphic history of the lithosphere slab. As a result, these failures occur over a range of temperature-pressure conditions through different mechanisms. Therefore, to unravel the intricacy of intraslab seismicity, it is crucial to investigate the details of failure mechanisms using multiple datasets, at different scales. Details on rupture mechanisms are now accessible through advanced, high-resolution seismologic approaches. However, seismologic archives are limited to events of the past few decades. Further, quasi-synchronous multiple-source mechanisms can be challenging to distinguish from seismic data only. Alternatively, the geologic records of intraslab seismicity, preserved in pseudotachylytes, provide a higher spatiotemporal resolution than seismic data, resulting in direct insight into the rupture triggering mechanisms. These fault rocks also inform, over the geologic timescale, on the integrated deformation history of the slab. Despite this fact, only a handful of natural exposures have been investigated, and these include localities in Corsica, Italy, Zambia, and Japan. In addition, despite some strain rate limitations, deformation experiments, conducted using a wide range of starting materials and over broad pressure-temperature conditions, may further constrain the causes of intraslab rupture. These experiments, being intrinsically performed on relatively small rock volumes cannot capture large scale aspects of intraslab deformation. Finally, numerical modelling may overcome some of the above limitations as long as accurate and realistic parameters are chosen. Ultimately, our review shows that to fill the gap in our knowledge of intraslab seismicity, we need a multiscale-multimethod approach that integrates seismologic, geologic, experimental and numerical perspectives. © 2021
英文关键词	Deformation experiments; Dehydration; Fault pseudotachylytes; Mineral phase stability; Seismology; Subduction
语种	英语
scopus关键词	deformation; dehydration; earthquake event; earthquake rupture; experimental study; fault zone; mantle source; seismology; slab; subduction; Corse; France; Italy; Japan; Zambia
来源期刊	EARTH-SCIENCE REVIEWS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/209203
作者单位	University of Louisiana at Lafayette, School of Geosciences, Lafayette, Louisiana, United States; Department of Geology and Geophysics, Louisiana State University, Baton Rouge, LA, United States; Laboratoire Chrono-Environnement, Université Bourgogne Franche-Comté, Besançon, France; University of Texas at Dallas, Department of Geosciences, Richardson, TX, United States; University of New Mexico, Department of Earth and Planetary Sciences, Albuquerque, NM, United States
推荐引用方式 GB/T 7714	Hosseinzadehsabeti E.,Ferré E.C.,Persaud P.,et al. The rupture mechanisms of intraslab earthquakes: A multiscale review and re-evaluation[J],2021,221.
APA	Hosseinzadehsabeti E.,Ferré E.C.,Persaud P.,Fabbri O.,&Geissman J.W..(2021).The rupture mechanisms of intraslab earthquakes: A multiscale review and re-evaluation.EARTH-SCIENCE REVIEWS,221.
MLA	Hosseinzadehsabeti E.,et al."The rupture mechanisms of intraslab earthquakes: A multiscale review and re-evaluation".EARTH-SCIENCE REVIEWS 221(2021).