What's down there? The structures, materials and environment of deep-seated slow slip and tremor
WM Behr, R Bürgmann - Philosophical Transactions of …, 2021 - royalsocietypublishing.org
Deep-seated slow slip and tremor (SST), including slow slip events, episodic tremor and
slip, and low-frequency earthquakes, occur downdip of the seismogenic zone of numerous …
slip, and low-frequency earthquakes, occur downdip of the seismogenic zone of numerous …
Rupture of wet mantle wedge by self-promoting carbonation
More than one teramole of carbon per year is subducted as carbonate or carbonaceous
material. However, the influence of carbonation/decarbonation reactions on seismic activity …
material. However, the influence of carbonation/decarbonation reactions on seismic activity …
Transient permeability of a deep‐seated subduction interface shear zone
J Muñoz‐Montecinos, WM Behr - Geophysical Research Letters, 2023 - Wiley Online Library
Slow slip and tremor is observed along many subduction margins and is commonly linked to
fluid pressure variations and migration. Accurate estimates of porosity and permeability …
fluid pressure variations and migration. Accurate estimates of porosity and permeability …
Methane-hydrogen-rich fluid migration may trigger seismic failure in subduction zones at forearc depths
Metamorphic fluids, faults, and shear zones are carriers of carbon from the deep Earth to
shallower reservoirs. Some of these fluids are reduced and transport energy sources, like …
shallower reservoirs. Some of these fluids are reduced and transport energy sources, like …
Deformation mechanisms of blueschist facies continental metasediments may offer insights into deep episodic tremor and slow slip events
Exhumed fossil subduction zones are archives of the deformation conditions and
mechanisms from depths not directly accessible. Microstructural analysis of samples …
mechanisms from depths not directly accessible. Microstructural analysis of samples …
Permeability of subducted oceanic crust revealed by eclogite-facies vugs
S Angiboust, T Raimondo - Geology, 2022 - pubs.geoscienceworld.org
We report the finding of rare eclogite-facies vugs forming millimeter-to centimeter-sized
pockets in meta-ophiolites from the western European Alps. Euhedral garnet crystals …
pockets in meta-ophiolites from the western European Alps. Euhedral garnet crystals …
Pervasive fluid-rock interaction in subducted oceanic crust revealed by oxygen isotope zoning in garnet
Dehydration reactions in the subducting slab liberate fluids causing major changes in rock
density, volume and permeability. Although it is well known that the fluids can migrate and …
density, volume and permeability. Although it is well known that the fluids can migrate and …
Understanding subduction infancy to mature subduction in Southwest Japan via the self-consistent formation of a weak slab interface
The weak slab interface controls long-term subduction dynamics. A weak hydrous layer at
the slab interface promotes mechanical decoupling between the forearc mantle and the …
the slab interface promotes mechanical decoupling between the forearc mantle and the …
[HTML][HTML] Tectonic pressure gradients during viscous creep drive fluid flow and brittle failure at the base of the seismogenic zone
L Menegon, Å Fagereng - Geology, 2021 - pubs.geoscienceworld.org
Fluid-pressure cycles are commonly invoked to explain alternating frictional and viscous
deformation at the base of the seismogenic crust. However, the stress conditions and …
deformation at the base of the seismogenic crust. However, the stress conditions and …
Field‐based evidence for intra‐slab high‐permeability channel formation at eclogite‐facies conditions during subduction
Fluid release from subducting oceanic lithosphere is a key process for subduction zone
geodynamics, from controlling arc volcanism to seismicity and tectonic exhumation …
geodynamics, from controlling arc volcanism to seismicity and tectonic exhumation …