Results 61 to 70 of about 8,127 (242)
Horizontal mantle flow controls subduction dynamics
Scientific Reports, 2017 It is generally accepted that subduction is driven by downgoing-plate negative buoyancy. Yet plate age –the main control on buoyancy– exhibits little correlation with most of the present-day subduction velocities and slab dips. “West”-directed subduction
E. Ficini +3 more
doaj +1 more source
Fault‐Controlled Permeability: A Key Parameter in Geothermal Electricity Production Assessment
Terra Nova, EarlyView.ABSTRACT Geothermal energy is central to the global green energy transition, but its development has long focused on regions with positive thermal anomalies. Through a semi‐quantitative global‐scale review and spatial analysis of 361 geothermal sites, we show that 56.2% of global geothermal electricity production occurs in regions with thermal ...
Vincent Roche, Gaétan Milesi
wiley +1 more source
Reawakening of large earthquakes in south central Chile: The 2016 Mw 7.6 Chiloé event
Geophysical Research Letters, 2017 On 25 December 2016, the Mw 7.6 Chiloé earthquake broke a plate boundary asperity in south central Chile near the center of the rupture zone of the Mw 9.5 Valdivia earthquake of 1960. To gain insight on decadal‐scale deformation trends and their relation
S. Ruiz +7 more
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Plate coupling and strain in the far western Aleutian arc modeled from GPS data
Geophysical Research Letters, 2017 The Aleutian and Kuril‐Kamchatka arcs meet at a triple junction of the Pacific (PAC), Bering (BER), and North American (NAM) plates. We invert GPS observations from the westernmost Aleutian (Komandorsky) Islands and Kamchatka for the fault locking depth ...
Mikhail G. Kogan +7 more
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Do submesoscale frontal processes ventilate the oxygen minimum zone off Peru?
Geophysical Research Letters, 2016 The Peruvian upwelling system encompasses the most intense and shallowest oxygen minimum zone (OMZ) in the ocean. This system shows pronounced submesoscale activity like filaments and fronts.
S. Thomsen +5 more
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Ophiolites in the Central Asian Orogenic Belt record Cambrian subduction initiation processes
Communications Earth & EnvironmentSubduction initiation remains elusive because no present example exists. Ophiolites formed over nascent subduction zones in the past provide the key to constraining the processes of subduction initiation.
Mingshuai Zhu +10 more
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Onset of double subduction controls plate motion reorganisation
Nature CommunicationsFace-to-face double subduction systems, in which two oceanic plates subduct toward each other, are essential elements of plate tectonics. Two subduction zones in such systems are typically uneven in age and their spatially and temporally variable ...
Kuidi Zhang, Jie Liao, Taras Gerya
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Tomographic Imaging of Slab Segmentation and Deformation in the Greater Antilles
Geochemistry, Geophysics, Geosystems, 2018 We present a new tomographic P wave model of the upper mantle in the east Caribbean region. The model was built using 3‐D finite frequency sensitivity kernels and ~20,000 teleseismic P and PP traveltime residuals from 535 events recorded across 130 ...
Cooper W. Harris +2 more
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Frontiers in Earth Science, 2020 The Calabrian Arc subduction, southern Italy, is a critical structural element in the geodynamic evolution of the central Mediterranean basin. It is a narrow, northwest-dipping slab bordered to the southwest by the Alfeo Fault System (AFS) and to the ...
Francesco Emanuele Maesano +2 more
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Geochemistry, Geophysics, GeosystemsIn the regime of plate tectonics, the subduction of an oceanic plate generally terminates with the collision and accretion of continental terranes. Then, a new subduction zone may form in the neighboring oceanic plates, which is defined as the terrane ...
Fengyuan Cui, Zhong‐Hai Li
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