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Subduction invasion of the Atlantic by Mediterranean subduction zones
2022<p>Subduction invasion has been referred to as the process by which subduction zones from a subducting ocean invade or trigger subduction initiation in a contiguous ocean. This can, in principle, happen in different ways that can vary from a direct migration by rollback along an oceanic corridor connecting the two oceans (e.g., the ...
João C. Duarte +3 more
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Science, 2018
Geophysics Subduction zones are responsible for the most-damaging and tsunami-generating great earthquakes. Hayes et al. updated their Slab1.0 model to include all seismically active subduction zones, including geometrically complex regions like the Philippines.
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Geophysics Subduction zones are responsible for the most-damaging and tsunami-generating great earthquakes. Hayes et al. updated their Slab1.0 model to include all seismically active subduction zones, including geometrically complex regions like the Philippines.
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2015
In this chapter, we review recent seismic tomography studies of subduction zones and new insights into arc magmatism, seismotectonics and subduction dynamics. Seismic velocity and attenuation tomography clearly reveals subducting slabs as high-velocity and low-attenuation zones, where intermediate-depth and deep earthquakes occur.
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In this chapter, we review recent seismic tomography studies of subduction zones and new insights into arc magmatism, seismotectonics and subduction dynamics. Seismic velocity and attenuation tomography clearly reveals subducting slabs as high-velocity and low-attenuation zones, where intermediate-depth and deep earthquakes occur.
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Tectonophysics, 2013
Abstract The Moho in subduction zones exists in two distinct forms, one associated with the subducting oceanic plate and second with the overriding plate. The seismic expression of both forms is linked to the nature of a landward dipping, low-velocity zone (LVZ) that has been detected in a majority of subduction zones about the globe and that ...
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Abstract The Moho in subduction zones exists in two distinct forms, one associated with the subducting oceanic plate and second with the overriding plate. The seismic expression of both forms is linked to the nature of a landward dipping, low-velocity zone (LVZ) that has been detected in a majority of subduction zones about the globe and that ...
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Subduction zones of the western Mediterranean.
2008Subduction zones of the western Mediterranean have been extensively studied during the last three decades, through their geologic, petrologic, geophysical, kinematic, and structural features. A synthesis of available data, along with their tectonic interpretation, has been published by FACCENNA et alii (2001).
SCHETTINO, Antonio +4 more
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Sediment subduction and frictional sliding in a subduction zone
Geology, 1980New experimental data for the mechanical and thermodynamic properties of clays at high pressure and high temperature are applied to model the frictional sliding in a subduction zone. The model is believed applicable because of the large volume of pelagic sediments that appear to have been subducted with the oceanic plate along active Pacific margins ...
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Subduction Zones in the Oceans
2001The formation of new oceanic crust at mid-ocean ridges requires a complementary mechanism by means of which lithospheric plates are consumed. The required destruction of lithospheric plates takes place in subduction zones located in the oceans and along the margins of some continents.
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2004
Lay people asked to name notable or particularly dangerous volcanoes are likely to come forth with names such as Krakatau, Mt. St. Helens, Pinatubo, Mt. Pelee, Vesuvius or Santorini. These are all volcanoes that have grown above subduction zones, and all have produced catastrophic or at least highly explosive eruptions.
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Lay people asked to name notable or particularly dangerous volcanoes are likely to come forth with names such as Krakatau, Mt. St. Helens, Pinatubo, Mt. Pelee, Vesuvius or Santorini. These are all volcanoes that have grown above subduction zones, and all have produced catastrophic or at least highly explosive eruptions.
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Stress orientations in subduction zones and the strength of subduction megathrust faults
Science, 2015Faults well oriented for failure A deck of cards will remain motionless while pressed on from above, but easily separates when sheared. Similarly, the ease by which geological faults rupture depends on the geometry of the fault relative to the size and direction of stress.
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Metamorphism in subduction zones
1990Subduction zones are associated with the greatest disturbances to the flow of heat from the interior of the Earth. They are also the sites of large departures from isostatic equilibrium in the lithosphere, particularly in the regions where oceanic plates bend to begin their descent into the Earth’s mantle.
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