Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Kohtaro Ujiie"'
Publikováno v:
Progress in Earth and Planetary Science, Vol 11, Iss 1, Pp 1-17 (2024)
Abstract Lithologic heterogeneity and the presence of fluids have been linked to seamount subduction and collocated with slow earthquakes. However, the deformation mechanisms and fluid conditions associated with seamount subduction remain poorly unde
Externí odkaz:
https://doaj.org/article/28ebb8b6987b48b19a160f4349f3ef6c
Publikováno v:
Earth, Planets and Space, Vol 75, Iss 1, Pp 1-14 (2023)
Abstract During the middle Miocene, forearc alkaline magmatism occurred in the Outer Zone of Southwest Japan and the northern Ryukyu Arc, resulting in the formation of forearc alkaline basaltic rocks with ocean island basalt (OIB)-like chemical signa
Externí odkaz:
https://doaj.org/article/ece6f8c486854ecbb67802724548bcef
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 24, Iss 4, Pp n/a-n/a (2023)
Abstract Accreted basaltic rocks are expected to provide information on intraplate volcanism in the oceans. Basaltic rocks, originating from mid‐ocean ridges, plateaus, and seamounts, have been reported from exhumed accretionary complexes. However,
Externí odkaz:
https://doaj.org/article/e657c8f698114297b5dfea718e668339
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 5, Pp n/a-n/a (2023)
Abstract The discovery of slow earthquakes illuminates the existence of a strange depth dependence of seismogenesis, which contradicts the common understanding of smooth brittle/seismic‐ductile/aseismic transition as going deeper into the earth's s
Externí odkaz:
https://doaj.org/article/76b0817668ee436fbdd33f56edc4b3e6
Autor:
Kohtaro Ujiie, Kazuya Noro, Norio Shigematsu, Åke Fagereng, Naoki Nishiyama, Christopher J. Tulley, Haruna Masuyama, Yasushi Mori, Hiroyuki Kagi
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 23, Iss 8, Pp n/a-n/a (2022)
Abstract Aseismic megathrust slip downdip of the seismogenic zone is accommodated by either steady creep or episodic slow slip events (SSEs). However, the geological conditions defining the rheology of megathrust slip remain elusive. We examined exhu
Externí odkaz:
https://doaj.org/article/9bca72cb7ee14ca8a004122dfe1100d5
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-10 (2021)
Abstract Slow slip and tremor (SST) downdip of the seismogenic zones may trigger megathrust earthquakes by frequently transferring stress to seismogenic zones. Geodetic observations have suggested that the recurrence intervals of slow slip decrease t
Externí odkaz:
https://doaj.org/article/df5adab11ee3406e8bf5231daa53048b
Autor:
Gaku Kimura, Yohei Hamada, Suguru Yabe, Asuka Yamaguchi, Rina Fukuchi, Yukari Kido, Lena Maeda, Sean Toczko, Hanaya Okuda, Nobuhiro Ogawa, Hitoshi Morioka, Kohtaro Ujiie, Demian Saffer
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 23, Iss 4, Pp n/a-n/a (2022)
Abstract The frontal megathrust of the Nankai Trough subduction zone is recognized as a seismogenic fault based on a record of frictional heating, but the underlying micromechanical processes that act on the fault surface are poorly known. Here we pr
Externí odkaz:
https://doaj.org/article/f12fe5c897df4898b2498c0747fac629
Publikováno v:
Earth, Planets and Space, Vol 71, Iss 1, Pp 1-7 (2019)
Abstract The large slip along the shallow subduction interface during the 2011 Tohoku-Oki earthquake (Mw9.0) caused a huge tsunami that struck the northeast coast of Honshu, Japan. The Integrated Ocean Drilling Program Expedition 343 JFAST program re
Externí odkaz:
https://doaj.org/article/691877730df64ace84a7dc2f3ae0b37a
Publikováno v:
Earth, Planets and Space, Vol 71, Iss 1, Pp 1-7 (2019)
Abstract Pelagic chert is one of the major lithologies in accretionary complexes. Thus, frictional properties of chert at seismic slip rates are important for understanding of earthquake faulting in subduction zones. Here, we conducted high-velocity
Externí odkaz:
https://doaj.org/article/7bd14d03644649c2878f26724a7c94e9
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 21, Iss 7, Pp n/a-n/a (2020)
Abstract Field studies have led to several interpretations on the mechanics behind slow earthquake phenomena downdip of the seismogenic zone. To date, field studies have not examined the shallow subduction interface which may also host slow earthquak
Externí odkaz:
https://doaj.org/article/2d0c7d07c54a48ac95979cd17f2b29c4