Results 31 to 40 of about 497,770 (261)

Eocene initiation of the Cascadia subduction zone: A second example of plume-induced subduction initiation? [PDF]

Geosphere, 2019
Includes supplementary material.The existing paradigm for the major ca. 56-48 Ma subduction zone reorganization in the Pacific Northwest of North America is that: (1) the Siletzia large igneous province erupted offshore to the west of North America ...
Robert J. Stern, Trevor A. Dumitru
openaire   +2 more sources

Formation of the Xigaze Metamorphic Sole under Tibetan continental lithosphere reveals generic characteristics of subduction initiation

Communications Earth & Environment, 2023
Metamorphic soles found under allochthonous oceanic lithosphere, or ophiolites, are interpreted as derived from lower plate oceanic crust material accreted to upper plate mantle during intraoceanic subduction initiation.
Carl Guilmette, Douwe J. J. van Hinsbergen, Matthijs A. Smit, Antoine Godet, François Fournier-Roy, Jared P. Butler, Marco Maffione, Shun Li, Kip Hodges   +8 more
doaj   +1 more source

Ocean-continent subduction cannot be initiated without preceding intra-oceanic subduction!

Frontiers in Earth Science, 2022
The formation of new subduction zones is a key element of plate tectonics and the Wilson cycle, and many different controlling mechanisms have been proposed to initiate subduction.
Alexander Koptev, Sierd Cloetingh, Taras Gerya, Pietro Sternai, Svetlana Botsyun   +4 more
doaj   +1 more source

Influence of magma-poor versus magma-rich passive margins on subduction initiation [PDF]

, 2022
International audienceWe present a new numerical modelling study of subduction initiation at (hyper-extended) magma-poor and magma-rich continental passive margins.
Auzemery, Antoine, Willingshofer, E., Auzemery, A., Porkoláb, K., Duretz, Thibault, Duretz, T., Yamato, Philippe, Yamato, P., Matenco, L.   +8 more
core   +1 more source

Plume‐Induced Sinking of Intracontinental Lithospheric Mantle: An Overlooked Mechanism of Subduction Initiation?

Geochemistry, Geophysics, Geosystems, 2021
Although many different mechanisms for subduction initiation have been proposed, only few of them are viable in terms of consistency with observations and reproducibility in numerical experiments.
Sierd Cloetingh, Alexander Koptev, István Kovács, Taras Gerya, Anouk Beniest, Ernst Willingshofer, Todd A. Ehlers, Nevena Andrić‐Tomašević, Svetlana Botsyun, Paul R. Eizenhöfer, Thomas François, Fred Beekman   +11 more
doaj   +1 more source

On the initiation of subduction zones

pure and applied geophysics, 1989
Analysis of the relation between intraplate stress fields and lithospheric rheology leads to greater insight into the role that initiation of subduction plays in the tectonic evolution of the lithosphere. Numerical model studies show that if after a short evolution of a passive margin (time span a few tens of million years) subduction has not yet ...
Cloetingh, S.A.P.L., Tankard, A.J., Welsink, H., Jenkins, H.   +3 more
openaire   +3 more sources

Origin and consequences of western Mediterranean subduction, rollback, and slab segmentation [PDF]

, 2014
The western Mediterranean recorded subduction rollback, slab segmentation and separation. Here we address the questions of what caused Oligocene rollback initiation, and how its subsequent evolution split up an originally coherent fore arc into circum ...
Vissers, R.L.M., Structural geology and EM, ERC-SINK: Subduction Initiation reconstructed from Neotethyan Kinematics, Mantle dynamics & theoretical geophysics, van Hinsbergen, D.J.J., Spakman, W.   +5 more
core   +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

Effects of rheological stratification and elasticity of lithosphere on subduction initiation

Frontiers in Earth Science, 2022
The breaking and bending of rigid and elastic lithosphere was probably essential for the initiation of plate subduction, although how this occurred is still poorly understood.
Ikuo Katayama, Masaki Yoshida, Ken-ichi Hirauchi   +2 more
doaj   +1 more source

Can subduction initiation at a transform fault be spontaneous? [PDF]

Solid Earth, 2020
We present an extensive parametric exploration of the feasibility of “spontaneous” subduction initiation, i.e., lithospheric gravitational collapse without any external forcing, at a transform fault (TF).
D. Arcay, S. Lallemand, S. Abecassis, F. Garel   +3 more
doaj   +1 more source