Results 11 to 20 of about 30,385 (227)

Along-Strike Variation in Accretion, Non-accretion, and Subduction Erosion Recorded in Rocks of the Jurassic-Neogene Convergent Plate Margin of California

open access: yesFrontiers in Earth Science, 2022
Post-subduction dextral faulting was restored to evaluate the spatial distribution of units of the Franciscan subduction complex of California that formed as a result of subduction accretion. The Franciscan and related rocks of western California exhibit
John Wakabayashi
doaj   +1 more source

Evolution of Subduction Cusps From the Perspective of Trench Migration and Slab Morphology

open access: yesFrontiers in Earth Science, 2021
The geometries of trenches vary worldwide due to continuous plate boundary reorganization. When two trenches intersect to generate a corner, a subduction cusp is formed.
Hui Zhao   +5 more
doaj   +1 more source

Geodynamic modeling on subduction-spreading interaction and implications for the South China Sea and surrounding regions

open access: yesGeosystems and Geoenvironment, 2023
The convergent subduction zones and the divergent spreading ridges are essential tectonic units that are widely distributed in the South China Sea and the surrounding regions, governing the regional tectonic evolution.
Jie Liao   +5 more
doaj   +1 more source

Ocean-continent subduction cannot be initiated without preceding intra-oceanic subduction!

open access: yesFrontiers in Earth Science, 2022
The formation of new subduction zones is a key element of plate tectonics and the Wilson cycle, and many different controlling mechanisms have been proposed to initiate subduction.
Alexander Koptev   +4 more
doaj   +1 more source

Aseismic ridge subduction and flat subduction: Insights from three-dimensional numerical models

open access: yesEarth and Planetary Physics, 2023
Flat subduction can significantly influence the distribution of volcanism, stress state, and surface topography of the overriding plate. However, the mechanisms for inducing flat subduction remain controversial.
Hui Zhao, Wei Leng
doaj   +1 more source

Natural observations of subduction initiation: Implications for the geodynamic evolution of the Paleo-Asian Ocean

open access: yesGeosystems and Geoenvironment, 2022
Initiation of new subduction zones is an integral part of Earth's plate tectonics regime. It is generally accepted that the negative buoyancy of sufficiently old oceanic lithosphere provides the primary driving force for subduction initiation.
Gaoxue Yang   +6 more
doaj   +1 more source

Subduction Duration and Slab Dip

open access: yesGeochemistry, 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
doaj   +1 more source

Control of Subduction Zone Age and Size on Flat Slab Subduction

open access: yesFrontiers in Earth Science, 2020
Flat slab subduction is an enigmatic style of subduction where the slab attains a horizontal orientation for up to several hundred kilometers below the base of the overriding plate.
Wouter Pieter Schellart
doaj   +1 more source

Subduction and Hydrogen Release: The Case of Bolivian Altiplano

open access: yesGeosciences, 2023
Natural hydrogen is known to be generated in the crust by water/rock interactions, especially the oxidation of iron-rich rock or radiolysis. However, other sources, especially deeper ones, exist. In the context of subduction, the dehydration of the slab,
Isabelle Moretti   +3 more
doaj   +1 more source

TerraceM-2: A Matlab® Interface for Mapping and Modeling Marine and Lacustrine Terraces

open access: yesFrontiers 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
doaj   +1 more source

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