Results 41 to 50 of about 29,724 (300)
Subduction Duration and Slab Dip
Geochemistry, Geophysics, Geosystems, 2020 The dip angles of slabs are among the clearest characteristics of subduction zones, but the factors that control them remain obscure. Here, slab dip angles and subduction parameters, including subduction duration, the nature of the overriding plate, slab
Jiashun Hu, Michael Gurnis
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On the initiation of subduction zones
pure and applied geophysics, 1989 Analysis of the relation between intraplate stress fields and lithospheric rheology leads to greater insight into the role that initiation of subduction plays in the tectonic evolution of the lithosphere. Numerical model studies show that if after a short evolution of a passive margin (time span a few tens of million years) subduction has not yet ...
Cloetingh, S.A.P.L. +3 more
openaire +4 more sources
Bathymetric Highs Control the Along-Strike Variations of the Manila Trench: 2D Numerical Modeling
Frontiers in Earth Science, 2022 The Manila Trench is located at the eastern boundary of the South China Sea (SCS). It develops through the subduction of the SCS beneath the Philippine Sea Plate (PSP) since the early Neogene, driven by the northwestern plate motion of the PSP.
Letian Ma +6 more
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Devolatilization of Subducting Slabs, Part II: Volatile Fluxes and Storage [PDF]
Geochemistry, Geophysics, Geosystems, 20 (2019), 2019 Subduction is a crucial part of the long-term water and carbon cycling between Earth's exosphere and interior. However, there is broad disagreement over how much water and carbon is liberated from subducting slabs to the mantle wedge and transported to island-arc volcanoes.
arxiv +1 more source
Fluid mechanics of free subduction on a sphere, 1: The axisymmetric case [PDF]
, 2021 To understand how spherical geometry influences the dynamics of gravity-driven subduction of oceanic lithosphere on Earth, we study a simple model of a thin and dense axisymmetric shell of thickness $h$ and viscosity $\eta_1$ sinking in a spherical body of fluid with radius $R_0$ and a lower viscosity $\eta_0$.
arxiv +1 more source
TerraceM-2: A Matlab® Interface for Mapping and Modeling Marine and Lacustrine Terraces
Frontiers in Earth Science, 2019 The morphology of marine and lacustrine terraces has been largely used to measure past sea- and lake-level positions and estimate vertical deformation in a wealth of studies focused on climate and tectonic processes.
Julius Jara-Muñoz +5 more
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What Controls Maximum Magnitudes of Giant Subduction Earthquakes?
Geochemistry, Geophysics, Geosystems, 2020 Giant earthquakes with magnitudes above 8.5 occur only in subduction zones. Despite the developments made in observing large subduction zone earthquakes with geophysical instruments, the factors controlling the maximum size of these earthquakes are still
Iskander A. Muldashev +1 more
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Magmatism and tectonic evolution of West Antarctica
Dizhi lixue xuebao, 2021 West Antarctica is mainly composed of five distinct micro-continental blocks, namely Haag Nunataks, Antarctic Peninsula, Thurston Island, Marie Byrd Land and Ellsworth-Whitmore Mountains. In order to understand the geological evolution of West Antarctica,
ZHENG Guanggao +3 more
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Selection and identity rules for subductions of type A quantum Iwahori-Hecke algebras [PDF]
J.Math.Phys.48:113515,2007, 2007 This paper is concerned with the subduction problem of type A quantum Iwahori-Hecke algebras $\mathbb{C} \mathbf{H}(\mathfrak{S}_f,q^2)$ with a real deformation parameter $q$, i.e. the problem of decomposing irreducible representations of such algebras as direct sum of irreducible representations of the subalgebras $\mathbb{C}\mathbf{H}(\mathfrak{S}_ ...
arxiv +1 more source
Numerical simulations of an ocean/continent convergent system: influence of subduction geometry and mantle wedge hydration on crustal recycling [PDF]
Geochem. Geophys. Geosyst., Volume 11, Number 5, ISSN: 1525-2027,
2010, 2011 The effects of the hydration mechanism on continental crust recycling are analyzed through a 2D finite element thermo-mechanical model. Oceanic slab dehydration and consequent mantle wedge hydration are implemented using a dynamic method. Hydration is accomplished by lawsonite and serpentine breakdown; topography is treated as a free surface ...
arxiv +1 more source