Results 31 to 40 of about 1,254,333 (184)

Numerical modelling of seismic wave propagation along the plate contact of the Hellenic Subduction Zone���the influence of a deep subduction channel [PDF]

Geophysical Journal International, 2009
SUMMARY We model seismic wave propagation from intermediate depth earthquakes in a subduction zone using a 2-D Chebyshev pseudospectral method. Particular attention is directed to the influence of a deep, low-viscosity subduction channel on top of the plate contact where metamorphic rocks may be exhumed by forced return flow.
Essen, K., Braatz, M., Ceranna, L., Friederich, W., Meier, T.   +4 more
openaire   +3 more sources

Integrated thermodynamic and thermomechanical numerical modeling: A useful method for studying deep Earth water and carbon cycling

Geosystems and Geoenvironment, 2022
The plate tectonic evolution controls the mass and energy circulation between the Earth's surface and interior, during which the volatiles (e.g., water and carbon) could also accompany the tectonic up- and down-wellings.
Zhong-Hai Li
doaj   +1 more source

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

, 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

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

, 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, Carolina Lithgow-bertelloni, Bilek, Susan L., Bilek, SL, Conrad, CP, Susan L. Bilek, Clinton P. Conrad, Lithgow-Bertelloni, C, Conrad, Clinton P.   +8 more
core   +1 more source

Chlorine isotope constraints on fluid‐rock interactions during subduction and exhumation of the Zermatt‐Saas ophiolite

Geochemistry, Geophysics, Geosystems, 2013
Chlorine isotope compositions of high‐pressure (∼2.3 GPa) serpentinite, rodingite, and hydrothermally altered oceanic crust (AOC) differ significantly from high‐ and ultrahigh‐pressure (> 3.2 GPa) metasedimentary rocks in the Aosta region, Italy ...
J. Selverstone, Z. D. Sharp
doaj   +1 more source

Shear‐Velocity Structure and Dynamics Beneath the Sicily Channel and Surrounding Regions of the Central Mediterranean Inferred From Seismic Surface Waves

Geochemistry, Geophysics, Geosystems, 2022
The evolution of the Sicily Channel Rift Zone (SCRZ) is thought to accommodate the regional tectonic stresses of the Calabrian subduction system. Much of the observations we have today are either limited to the surface or to the upper crust or deeper ...
M. R. Agius, F. Magrini, G. Diaferia, E. D. Kästle, F. Cammarano, C. Faccenna, F. Funiciello, M. van derMeijde   +7 more
doaj   +1 more source

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

, 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., Sena, Clara, Gurnis, M., Ivan P. Savov, Loudin, L.C., Kusano, Y., van der Land, C., Bogus, K.A., Jiang, F, Gene M. Yogodzinski, Hamada, Morihisa, Li, He, Loudin, LC, Kender, Sev, Drab, Laureen, Marco Maffione, Meffre, Sebastién, Savov, Ivan P., Hickey-Vargas, Rosemary, Yuki Kusano, do Monte Guerra, R, Neuhaus, Martin, Guerra, RDM, Alexandre N. Bandini-Maeder, Ishizuka, Osamu, Richard J. Arculus, Mohammed H. Aljahdali, Maffione, M, Barth, A.P., Aljahdali, MH, Rosemary Hickey-Vargas, Bandini, A.N., Savov, IP, Hickey-Vargas, R, Marsaglia, K.M., Guerra, Rodrigo do Monte, McCarthy, A., Rodrigo do Monte Guerra, Kanayama, K, van der Land, C, Jiang, F., Maffione, M., Kender, S., Hickey-Vargas, R., Morihisa Hamada, Kara A. Bogus, Bogus, Kara A., Meffre, S., Zhang, Z., Zhang, Z, Zhang, Zhaohui, Tepley, Frank J., III, TFJ, Ishizuka, O, Kusano, Yuki, Anders McCarthy, Andrew P. Barth, Tepley III, F.J., Gurnis, M, Bogus, KA, Hamada, N., Meffre, S, Aljahdali, Mohammed H., Arculus, RJ, Kusano, Y, Morris, A., Zhaohui Zhang, Philipp A. Brandl, do Monte Guerra, R., Maffione, Marco; id_orcid, Brandl, PA, Neuhaus, M, Ishizuka, O., do Monte Guerra, Rodrigo, Lorne C. Loudin, Drab, L, Clara Sena, Frank J. Tepley III, Osamu Ishizuka, Yogodzinski, G.M., Hamada, M, Kyoko Kanayama, Brandl, Philipp A., He Li, Sev Kender, Bandini-Maeder, Alexandre N., Tepley, FJ, McCarthy, A, Sena, C, McCarthy, Anders, Martin Neuhaus, Gurnis, Michael, Kanayama, Kyoko, Kanayama, K., Barth, Andrew P., Jiang, Fuqing, Tepley III, Frank J., Mantle dynamics & theoretical geophysics, ERC-SINK: Subduction Initiation reconstructed from Neotethyan Kinematics, Maffione, Marco, Savov, I.P., Li, H, Kathleen M. Marsaglia, Yogodzinski, GM, Bandini-Maeder, AN, Marsaglia, KM, Michael Gurnis, Kender, S, van der Land, Cees, Laureen Drab, Arculus, R., Sena Da Silva, C.E., Morris, A, Sebastién Meffre, van, der Land C, Ma ffione, M, Yogodzinski, Gene M., Fuqing Jiang, Loudin, Lorne C., Cees van der Land, Morris, Antony, Barth, AP, Tepley III, FJ, Brandl, P.A., Marsaglia, Kathleen M., Li, H., Aljahdali, M.H., Tepley, Frank J., III, Antony Morris   +128 more
core   +2 more sources

Accretion versus erosion and sediment transfer balance near the subduction interface

Comptes Rendus. Géoscience
The nature and amount of sediment transferred from one plate to the other near the subduction interface partly determines the tectonic and seismogenic regime of a margin.
Lallemand, Serge, Peyret, Michel, Arcay, Diane, Heuret, Arnauld   +3 more
doaj   +1 more source

Mantle Flow Pattern Associated With the Patagonian Slab Window Determined From Azimuthal Anisotropy

Geophysical Research Letters, 2022
Geological processes in Southern Patagonia are affected by the Patagonian slab window, formed by the subduction of the Chile Ridge and subsequent northward migration of the Chile Triple Junction.
Walid Ben‐Mansour, Douglas A. Wiens, Hannah F. Mark, Raymond M. Russo, Andreas Richter, Eric Marderwald, Sergio Barrientos   +6 more
doaj   +1 more source

Shallow Depth, Substantial Change: Fluid-Metasomatism Causes Major Compositional Modifications of Subducted Volcanics (Mariana Forearc)

Frontiers in Earth Science, 2022
Mass transfer at shallow subduction levels and its ramifications for deeper processes remain incompletely constrained. New insights are provided by ocean island basalt (OIB) clasts from the Mariana forearc that experienced subduction to up to ∼25–30 km ...
Elmar Albers, John W. Shervais, Christian T. Hansen, Yuji Ichiyama, Patricia Fryer   +4 more
doaj   +1 more source