Results 51 to 60 of about 709,240 (263)
Multiphase Tectonic Process With Slab Dynamics in the Northern East China Sea Shelf Basin
Geological Journal, EarlyView.Megasequence 1 characterised by Palaeocene extension and differential subsidence driven by the rollback of the subducting Izanagi Plate. Megasequence 2 records a kinematic reorganisation of the East Asian margin, transition from a rifting to a compressional regime.
Juhwan Woo +3 more
wiley +1 more source
A numerical study of the dynamics of subduction [PDF]
, 1988 The mechanics and dynamics of subduction have been studied using 2-D finite element analysis. Two finite element formulations have been employed; one formulation for Newtonian viscous flow and one formulation for linear elasticity and viscoelasticity ...
Whittaker, A.
core
Geological Journal, EarlyView.The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang +6 more
wiley +1 more source
Structural control and system-level behavior of the seismic cycle at the Nankai Trough
Earth, Planets and Space, 2020 The Nankai Trough in Southwest Japan exhibits a wide spectrum of fault slip, with long-term and short-term slow-slip events, slow and fast earthquakes, all associated with different segments down the plate interface.
Qibin Shi +5 more
doaj +1 more source
Transient Permeability of a Deep‐Seated Subduction Interface Shear Zone
Geophysical Research Letters, 2023 Slow slip and tremor is observed along many subduction margins and is commonly linked to fluid pressure variations and migration. Accurate estimates of porosity and permeability around subduction megathrust shear zones are vital for understanding fluid ...
J. Muñoz‐Montecinos, W. M. Behr
doaj +1 more source
Geological Journal, EarlyView.Early zircon saturation and crystallisation occur in mafic (52–54 wt.% SiO2) lavas at Tengchong volcanic field. These early formed zircons with high δ18O (6.6‰–7.9‰) indicates mantle enrichment by subducted supracrustal materials. ABSTRACT Late Pleistocene (< 0.2 Ma) mafic and evolved volcanic rocks occur in northern Tengchong Volcanic Field, SE ...
Lizhu Wang, Haibo Zou
wiley +1 more source
Machine Learning Can Predict the Timing and Size of Analog Earthquakes
Geophysical Research Letters, 2019 Despite the growing spatiotemporal density of geophysical observations at subduction zones, predicting the timing and size of future earthquakes remains a challenge. Here we simulate multiple seismic cycles in a laboratory‐scale subduction zone.
F. Corbi +6 more
doaj +1 more source
Progress in Earth and Planetary Science, 2023 The thermal structure of subduction zones is fundamental to our understanding of physical and chemical processes that occur at active convergent plate margins.
Peter E. van Keken, Cian R. Wilson
doaj +1 more source
Geosystems and Geoenvironment, 2023 Subduction mélange, with its distinctive block-in-matrix structure, is documented in exhumed fossil subduction zones worldwide. Rocks from these terranes preserve features that record tectonic processes from the time that the rocks were at the subduction
Sarah C. Penniston-Dorland +1 more
doaj +1 more source
Geological Journal, EarlyView.Our petrochemical studies on ~1.2 Ga granitoids of the Natal Metamorphic Belt, South Africa, do not suggest any property similar to Phanerozoic‐style subduction‐related granitoids. Plot of Kotongweni Tonalite in Y versus Sr diagram (after Moyen 2011), note that most samples have Sr/Y < 50.
Palesa Leuta +2 more
wiley +1 more source