Results 21 to 30 of about 61,955 (243)

Origin and consequences of western Mediterranean subduction, rollback, and slab segmentation [PDF]

open access: yes, 2014
The western Mediterranean recorded subduction rollback, slab segmentation and separation. Here we address the questions of what caused Oligocene rollback initiation, and how its subsequent evolution split up an originally coherent fore arc into circum ...
Vissers, R.L.M.   +5 more
core   +1 more source

Kinematic Boundary Conditions Favouring Subduction Initiation at Passive Margins Over Subduction at Mid-oceanic Ridges [PDF]

open access: yes, 2021
International audienceWe perform numerical modelling to simulate the shortening of an oceanic basin and the adjacent continental margins in order to discuss the relationship between compressional stresses acting on the lithosphere and the time dependent ...
Beekman, F.   +8 more
core   +1 more source

Complex anisotropy beneath the Peruvian flat slab from frequency-dependent, multiple-phase shear wave splitting analysis [PDF]

open access: yes, 2013
Flat or shallow subduction is a relatively widespread global occurrence, but the dynamics remain poorly understood. In particular, the interaction between flat slabs and the surrounding mantle flow has yet to be studied in detail.
Long, Maureen D., Eakin, Caroline M.
core   +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 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

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

What Controls Maximum Magnitudes of Giant Subduction Earthquakes?

open access: yesGeochemistry, 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
doaj   +1 more source

Slab pull, slab weakening, and their relation to deep intra-slab seismicity [PDF]

open access: yes, 2005
Subduction zone seismicity is highly variable. Great earthquakes occur at few subduction zones around the world, with significant variation in size and frequency of deep events. Interactions between overriding and subducting plates and slab pull strength
Lithgow‐bertelloni, Carolina   +8 more
core   +1 more source

A record of spontaneous subduction initiation in the Izu–Bonin–Mariana arc [PDF]

open access: yes, 2015
The initiation of tectonic plate subduction into the mantle is poorly understood. If subduction is induced by the push of a distant mid-ocean ridge or subducted slab pull, we expect compression and uplift of the overriding plate. In contrast, spontaneous
Arculus, Richard J.   +128 more
core   +2 more sources

Recent Crustal Deformation in West-Central South America [PDF]

open access: yes, 2003
I use interferometric synthetic aperture radar (InSAR) to create maps of crustal deformation along the coast and within the volcanic arc of central South America. I image deformation associated with six subduction zone earthquakes, four volcanic centers,
Pritchard, Matthew Earl
core   +1 more source

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