Results 81 to 90 of about 7,754 (208)

Earthquake stress-drop values delineate spatial variations in maximum shear stress in the Japanese forearc lithosphere

Communications Earth & Environment
Earthquake stress drop (Δσ) may increase with depth and stress in the brittle lithosphere. However, the range of uncertainty in Δσ and the lack of constraints on absolute stress make it difficult to establish whether they are correlated.
Gian Maria Bocchini, Armin Dielforder, Kilian B. Kemna, Rebecca M. Harrington, Elizabeth S. Cochran   +4 more
doaj   +1 more source

High-density surveys conducted to reveal active deformations of the upper forearc slope along the Ryukyu Trench, western Pacific, Japan

Progress in Earth and Planetary Science, 2018
In this study, which was conducted to investigate present-day geological deformations occurring off the central Ryukyu Arc along the Ryukyu Trench (Okinawa-jima) in the vicinity of Japan, we obtained and examined dense, high-resolution, 2D grid (high ...
Kohsaku Arai, Takahiko Inoue, Tomoyuki Sato   +2 more
doaj   +1 more source

Evaluating Forced Versus Plume‐Induced Subduction Initiation for the Talkeetna‐Bonanza Arc System: Implications for Permo‐Triassic Paleogeography of the North American Cordillera

Tectonics, Volume 45, Issue 9, September 2026.
Abstract The mechanisms by which new subduction zones form remain highly debated. Here we use Permo‐Triassic strata to evaluate potential mechanisms for initiation of the Talkeetna‐Bonanza Arc of the northern North American Cordillera. New mapping and analysis of Permian and Upper Triassic strata on the Alaska Peninsula suggest a period of uplift ...
Brandon M. Keough, Michael P. Eddy, Kenneth D. Ridgway   +2 more
wiley   +1 more source

Sedimentation and viscosity controls on forearc high growth

, 2020
23 pages, 12 figures, 2 tables, supplementary material https://doi.org/10.1111/bre.12518.-- The data that support the findings of this study are available from the corresponding author upon reasonable request..-- This is the pre-peer reviewed version of ...
Utsav Mannu, Fernández-Blanco, David (author), Mannu, Utsav (author), Bertotti, G. (author), Sean D. Willett, Willett, S. D., David Fernández‐Blanco, Cassola, Teodoro, Willett, Sean D. (author), Giovanni Bertotti, Mannu, Utsav, Cassola, Teodoro (author), Teodoro Cassola, Bertotti, Giovanni, Bertotti, G., Willett, Sean D., Fernández-Blanco, David   +16 more
core   +2 more sources

Subduction zone fluxes of halogens and noble gases in seafloor and forearc serpentinites [PDF]

, 2013
Serpentinites form by hydration of ultramafic lithologies in a range of seafloor and shallow subduction zone settings. Serpentinites are recognised as major reservoirs of fluid mobile elements and HO in subducting oceanic lithosphere, and together with ...
Phillips, David, Pettke, Thomas, Kendrick, Mark A., Giuliani, Andrea, Scambelluri, Marco, Honda, Masahiko   +5 more
core   +1 more source

Provenance Constraints on Early India–Asia Collision: Evidence From the Late Cretaceous–Early Cenozoic Sulaiman–Katawaz Basin Fill

Basin Research, Volume 38, Issue 5, September‐October 2026.
Integrated detrital zircon U–Pb, Nd–Sr isotopes and thermochronology record western Indian‐margin provenance reorganisation. Late Cretaceous–Palaeocene sediment supply was Indian‐affinity; Asian‐affinity input appeared across the Palaeocene–Eocene transition (~56.5–54.7 Ma), suggesting India–Asia collision was underway, while mixed provenance persisted
Nowrad Ali, Edward R. Sobel, Anne Bernhardt, Humaad Ghani, Muhammad Sajid, Mohibullah Mohibullah, Axel Gerdes, Jessica A. Stammeier, Johannes Glodny   +8 more
wiley   +1 more source

(Ultra)high‐Pressure Metamorphism in Sedimentary Versus Basaltic Rocks: Insights From a Variscan Mélange in the South Carpathians

Journal of Metamorphic Geology, Volume 44, Issue 8, Page 585-610, September 2026.
ABSTRACT Reconstructing the pressure–temperature–time (P–T–t) evolution of (ultra)high‐pressure rocks is essential for constraining subduction and collisional dynamics. Subduction zones are often investigated using basic eclogites, whereas nonbasic high‐pressure rocks remain comparatively understudied, potentially hindering a comprehensive ...
Otavio S. G. Silva, Bruno V. Ribeiro, Gavril Săbău, Fabricio Caxito, Paulo A. de Paiva‐Silva, Pierre Lanari, George Luvizotto, Mahyra Tedeschi   +7 more
wiley   +1 more source

Detailed Shallow Shear Velocity Structure in the Nankai Trough From Ambient Noise Differential Adjoint Tomography: Implications for Earthquake Generation Mechanisms

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Seismic and aseismic slip has been reported in the Nankai Trough. In this study we apply ambient noise differential adjoint tomography to obtain a high‐resolution S‐wave velocity (Vs) model in the Nankai Trough. The Vs in the very shallow imbricate thrust zone is higher than that on both the seaward and landward sides.
Lina Gao, Xin Liu, Ayako Nakanishi, Haoran Meng, Xi Wang, Zhanwen Li, Gou Fujie   +6 more
wiley   +1 more source

Numerical models of subduction and forearc deformation [PDF]

Geophysical Journal International, 1985
presence of a low-strength megathrust and regional compression. Successful finite element models produce an outer arc at the top of the trench slope, and forearc basin with geometry characteristic of natural analogues. These structural features occur by upward inelastic bending of the lithospheric wedge overlying the megathrust.
openaire   +1 more source

Stratigraphy and sedimentology of Pliocene limestones, Wairoa district, northern Hawke's Bay [PDF]

, 2011
This project documents the sedimentary geology of a shallow-marine, limestone-bearing Pliocene succession (Mangaheia Group; up to 1.5 km thick) within the Wairoa Syncline, northern Hawke’s Bay.
Jiang, Zichun (Jared)
core