Results 11 to 20 of about 1,920 (208)

Structural and rheological evolution of the Laramide subduction channel in southern California [PDF]

open access: yesSolid Earth, 2017
The Pelona Schist in the San Gabriel Mountains, southern California, formed in the Laramide subduction channel, exhibits multiple phases of deformation/metamorphism and provides valuable insights into the rheological properties of the subduction channel.
H. Xia, J. P. Platt
doaj   +5 more sources

Evidence for a serpentinized plate interface favouring continental subduction [PDF]

open access: yesNature Communications, 2020
The dynamics of continental subduction is largely controlled by the rheological properties of rocks involved along the subduction channel. Here, the authors reveal a prominent, yet previously undetected, low-velocity body beneath the Western Alps, along ...
Liang Zhao   +12 more
doaj   +2 more sources

Resubduction of lawsonite eclogite within a serpentinite-filled subduction channel [PDF]

open access: yesContributions to Mineralogy and Petrology, 2020
Data source: Supplementary material, https://doi.org/10.1007/s00410-020-01712-1Translating burial and exhumation histories from the petrological and geochronological record of high-pressure assemblages in subduction channels is key to understanding ...
Zack, T.   +6 more
core   +3 more sources

Forced Return Flow Deep in the Subduction Channel, Syros, Greece [PDF]

open access: yesTectonics, 2020
We present the results of a detailed structural study in the Cycladic Blueschist Unit at Fabrika on Syros Island, Greece, and discuss their significance for tectonic processes at the subduction interface.
Uwe Ring   +7 more
core   +4 more sources

Large megathrust earthquakes in cold mantle wedge corners under lawsonite blueschist facies [PDF]

open access: yesNature Communications
Giant megathrust earthquakes typically occur above the upper-plate Moho or the 350°C isotherm in warm subduction zones. However, large earthquakes also occur within the mantle wedge corner at 35-55 km depth at cold subduction zones, such as the Kermadec,
Hao Zhang   +5 more
doaj   +2 more sources

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   +2 more sources

The Monviso ophiolitic massif (Western Alps), a section through a serpentinite subduction channel. [PDF]

open access: yesJournal of the Virtual Explorer, 2004
The exhumation of subducted lithosphere requires a mechanically weak zone at the interface between the subduction plane and the rigid overlying mantle peridotites with a viscosity greater than 10 20 Pa.s.
Schwartz, S.   +4 more
core   +5 more sources

Pre‐Subduction Architecture Controls Coherent Underplating During Subduction and Exhumation (Nevado‐Filábride Complex, Southern Spain)

open access: yesGeochemistry, Geophysics, Geosystems, 2023
The interplay between structural and metamorphic processes operating along the deep plate interface in subduction zones remains elusive as much of the geologic record is recycled into the mantle.
Eirini M. Poulaki   +2 more
doaj   +2 more sources

Stress heterogeneities in exhumed high-pressure rocks shed light on deep subduction interface transient coupling [PDF]

open access: yesNature Communications
Stress distribution and creep mechanisms along modern subduction interfaces remain poorly understood, due to the lack of high-resolution constraints on the rheology of the heterogeneous plate interface and associated fluid distribution in the so-called ...
Yawei Wu   +5 more
doaj   +2 more sources

High‐Pressure Transformations and Stability of Ferromagnesite in the Earth's Mantle

open access: yesGeophysical Monograph Series, Page 105-113., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Eglantine Boulard   +2 more
wiley  

+9 more sources

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