Results 51 to 60 of about 314 (187)

A new 3D geometry model of Northwest Pacific slabs [PDF]

open access: yes, 2023
We provide an improved 3D geometry model of the Northwest Pacific subduction plate. Our model focuses on revealing the morphology, degree of extension and especially the local structure of the subducted plate.
Jianchao Wang, Huilin Xing
core   +1 more source

Deep-focus earthquakes: spatial patterns, possible causes and geodynamic consequences

open access: yesГеодинамика и тектонофизика, 2018
The spatial analysis was conducted to analyze the positions of earthquakes hypocenters in the transit zone of the upper mantle and the focal mechanisms of the strongest earthquakes in the subduction slabs of theOkhotskSeasegment of the Kuril-Kamchatka ...
A. N. Didenko, M. I. Kuzmin
doaj   +1 more source

Seismic Disturbance, Productivity and Depth Shape Hadal Benthic Habitats and Biodiversity in the Japan, Ryukyu and Izu‐Ogasawara Trenches (Northwest Pacific Ocean)

open access: yesJournal of Biogeography, Volume 52, Issue 11, November 2025.
ABSTRACT Aim This study characterises benthic habitats and associated biodiversity in three Japanese subduction trenches, and explores the effects of trench‐specific differences in large‐scale seismic events, disturbance and productivity regimes on habitat structure and assemblage composition.
Denise J. B. Swanborn   +6 more
wiley   +1 more source

Oblique subduction and collision: Forearc tectonics of the Kuril arc [PDF]

open access: yes, 1989
Japanese WESTPAC Symposium. June 6-7, 1989. Ocean Research Institute, University of Tokyo. 西太平洋におけるマイクロプレートテクトニクスと古環境地図に関する研究会. 1989年6月6日-7日. 東京大学海洋研究所.The tectonics of the southwestern Kuril are a result of the oblique subduction of the Pacific plate at
Kimura, Gaku
core  

Basaltic volcanism of Medvezhia caldera on the Iturup Island of Kurile Isles: impact of regional tectonics on subduction magmatism Martynov Yu.А., Rybin А.V., Chibisova М.V., Ostapenko D.S., Davydova M.Yu [PDF]

open access: yes, 2022
We present newly acquired data on the trace element composition and Sr–Nd–Pb-O isotopes of Pliocene – Holocene basalts of the Medvezhiy caldera located on the Iturup Island, Kuril arc.
Yurii Marynov (12155610)   +4 more
core   +1 more source

Seismicity to the South of the Louisville Ridge‐Tonga Trench Collision Zone: New Insight Into Processes Controlling Seismic Gaps and Subduction Erosion

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 7, July 2025.
Abstract The Louisville seismic gap associated with the subduction of the Louisville Ridge (LR) along the Tonga‐Kermadec trench is a globally prominent feature. Due to the lack of near‐field seismic monitoring, the earthquake potential and seismic behavior in this region have long been an enigma.
Yingchen Liu   +2 more
wiley   +1 more source

Identification of the Atmospheric Vortex Shedding Behind the Jeju Island Based on MODIS and ERA5 Data

open access: yesEarth and Space Science, Volume 12, Issue 5, May 2025.
Abstract A fascinating phenomenon often occurs as pairs of vortices in two rows on the leeward of some islands. The satellite remote sensing has been a major facilitator to observe this phenomenon. In this study, we conduct a statistical analysis on the occurrence of vortex street by processing 20‐year cloud images from the MODIS remote sensing data ...
Chaoyue Wu   +5 more
wiley   +1 more source

Advancements in the GRACE and GRACE‐FO Gradiometer Mode

open access: yesEarth and Space Science, Volume 12, Issue 5, May 2025.
Abstract The global gravitational gradient field has not been observed since the decommission of GOCE in 2013. Based on the foundational work of Peidou and Pagiatakis (2019, https://doi.org/10.1029/2018jb016382), we advance the concept of GRACE gradiometer mode (GM) for the purpose of using GRACE, GRACE‐FO and future gravity space missions as ...
Nikeet Pandit, Spiros Pagiatakis
wiley   +1 more source

Geochemistry at DSDP Hole 57-439 [PDF]

open access: yes, 1980
Dating of a hornblende concentrate by the 40Ar/39Ar method gives an age of 23.4±5.5 m.y. for a dacite boulder from conglomerate in Deep Sea Drilling Project Hole 439.
Fujioka, Kantaro   +3 more
core   +1 more source

Seismicity of the south of the Russian Far East in 2024 [PDF]

open access: yesГеосистемы переходных зон
The paper continues the series of annual brief reviews of the seismicity in the southern part of the Russian Far East, based on the data from the catalog of the “Yuzhno-Sakhalinsk” Regional Information Processing Center of the Sakhalin Branch of the ...
Safonov, Dmitry A.   +3 more
doaj   +1 more source

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