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Intraplate Strike-Slip Faulting, Stress Accumulation, and Shear Localization of a Crust-Upper Mantle System With Nonlinear Viscoelastic Material
http://hdl.handle.net/2237/00029394
http://hdl.handle.net/2237/00029394e88ce6c5-540b-4685-a4e2-06937f50e93a
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Zhang_et_al-2018-Journal_of_Geophysical_Research__Solid_Earth (2.8 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-03-06 | |||||
| タイトル | ||||||
| タイトル | Intraplate Strike-Slip Faulting, Stress Accumulation, and Shear Localization of a Crust-Upper Mantle System With Nonlinear Viscoelastic Material | |||||
| 言語 | en | |||||
| 著者 |
Zhang, Xuelei
× Zhang, Xuelei× Sagiya, Takeshi |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報 | © 2018 American Geophysical Union | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | earthquake cycle | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | nonlinear Maxwell rheology | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | plastic shear zone evolution | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We investigate the evolution of tectonic background stress and elastic as well as inelastic strain in a crust‐upper mantle system around an infinitely long vertical strike‐slip fault in a self‐consistent mechanical earthquake cycle model. In the early stage of the stress evolution, deformation of the crust and the upper mantle is dominated by a uniform simple shear. Shear localization in the lower crust starts when coseismic rupture extends to the entire brittle upper crust. Together with this transition, the earthquake recurrence intervals decrease by an order of magnitude due to a basal drag originated from a localized plastic flow of the lower crust. After the shear zone is fully developed in the lower crust, the fault slip rate catches up with the far‐field velocity and earthquakes starts to occur periodically. Such a steady state can be reached in several hundred thousand years from the beginning, which includes few hundreds of earthquake cycles. A shear zone with large cumulative strain needs a few million years to develop under an intraplate strike‐slip fault, which is much longer than the time for shear strain rate to be localized. The model successfully reproduced evolution of tectonic stress around an intraplate strike‐slip fault, interacting with the development of localized shear zone in the lower crust. The model demonstrates the importance of considering the whole mechanical system in which rheological structure and fault activities interacting with each other for the better understanding of the intraplate earthquakes. | |||||
| 言語 | en | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | ファイル公開：2019-04-01 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | Wiley | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1029/2018JB016421 | |||||
| ISSN（print） | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 2169-9313 | |||||
| ISSN（Online） | ||||||
| 収録物識別子タイプ | EISSN | |||||
| 収録物識別子 | 2169-9356 | |||||
| 書誌情報 |
Journal of Geophysical Research: Solid Earth 巻 123, 号 10, p. 9269-9285, 発行日 2018-10 |
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| 著者版フラグ | ||||||
| 値 | publisher | |||||
