Rheological structure of northeastern Japan lithosphere based on geophysical observations and rock mechanics

DOI Web Site Web Site 被引用文献14件 参考文献38件

書誌事項

公開日
2011-04
資源種別
journal article
権利情報
  • https://www.elsevier.com/tdm/userlicense/1.0/
  • https://www.elsevier.com/legal/tdmrep-license
DOI
  • 10.1016/j.tecto.2011.03.002
公開者
Elsevier BV

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説明

Abstract Based on recent results on rock mechanics and geophysical observations, I constructed rheological (strength and viscosity) profiles across the northeastern Japan lithosphere. The profiles well explain patterns of present-day geodetic strain accumulation and shallow seismicity. Experimentally derived flow laws also predict the presence of weak zones by mechanisms likely operated in the lithosphere (e.g., partial melting and shear zone development). The strain localization into weak zones explains the estimates of low viscosity (1019–1020 Pas) from post-seismic creep after a large inland earthquake. The strain localization into weak zones also efficiently accumulates elastic strains at the base of upper seismogenic faults locked during interseismic periods resulting in the reactivation of pre-existing fault systems in the northeastern Japan.

収録刊行物

  • Tectonophysics

    Tectonophysics 503 (3-4), 201-206, 2011-04

    Elsevier BV

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