Results 51 to 60 of about 530,755 (252)

The Norfolk Ridge: A Proximal Record of the Tonga‐Kermadec Subduction Initiation

Geochemistry, Geophysics, Geosystems, 2023
Norfolk Ridge bounds the northeastern edge of the continent of Zealandia and is proximal to where Cenozoic Tonga‐Kermadec subduction initiation occurred.
J. Collot, R. Sutherland, S. Etienne, M. Patriat, W. R. Roest, B. Marcaillou, C. Clerc, W. Stratford, N. Mortimer, C. Juan, A. Bordenave, P. Schnurle, D. Barker, S. Williams, S. Wolf, M. Crundwell   +15 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., 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   +127 more
core   +1 more source

Dynamics of intraoceanic subduction initiation: 1. Oceanic detachment fault inversion and the formation of supra-subduction zone ophiolites [PDF]

, 2015
Subduction initiation is a critical link in the plate tectonic cycle. Intraoceanic subduction zones can form along transform faults and fracture zones, but how subduction nucleates parallel to mid-ocean ridges, as in e.g., the Neotethys Ocean during the ...
Wim Spakman, ERC-SINK: Subduction Initiation reconstructed from Neotethyan Kinematics, Mantle dynamics & theoretical geophysics, Maffione, Marco, Marco Maffione, NWO-VIDI: Subduction iniation reconstructed from Neotethyan kinematics (SINK): an integrated geological and numerical study of the driving forces behind plate tectonics, van Hinsbergen, Douwe J.J., Douwe J. J. van Hinsbergen, Oliver Plümper, Structural geology and EM, Morris, Antony, van Hinsbergen, Douwe J J, Maffione, Marco; id_orcid, Plümper, Oliver, Cedric Thieulot, Spakman, Wim, Thieulot, Cedric, Antony Morris, Research Programme in Earth Sciences Utrecht (DES / IVAU)   +18 more
core   +1 more source

Subduction initiation at the corner of small oceanic basin

Geophysical Research Letters, 2023
In Southeast Asia, emerging subduction zones often appear to begin at the corners of small oceanic basins, which have a triangular-indenter continent–ocean boundary geometry. To investigate the influence of a triangular indenter on subduction initiation, we performed a series of three-dimensional numerical simulations with varying indenter angles and ...
Miao Dong, Tianyao Hao, Yue Li, Jian Zhang, Gui Fang   +4 more
openaire   +2 more sources

Anomalous Subduction Initiation: Young Under Old Oceanic Lithosphere

Geochemistry, Geophysics, Geosystems, 2021
When subduction initiates along a transform fault, it is often interpreted that the older and therefore denser oceanic lithosphere should evolve into the downgoing plate.
Lulu Zhang, Sergio Zlotnik, Chun‐Feng Li   +2 more
doaj   +1 more source

Plume-Induced Subduction Initiation: Revisiting Models and Observations

Frontiers in Earth Science, 2021
Subduction initiation induced by a hot and buoyant mantle plume head is unique among proposed subduction initiation mechanisms because it does not require pre-existing weak zones or other forces for lithospheric collapse.
Marzieh Baes, Marzieh Baes, Robert J. Stern, Scott Whattam, Taras V. Gerya, Stephan V. Sobolev, Stephan V. Sobolev   +6 more
doaj   +1 more source

Slow subduction initiation drives fast mantle upwelling and lithosphere formation

, 2021
International audienceSubduction zones are crucial features of Earth"s plate tectonics, yet subduction initiation remains enigmatic and controversial. Herein, we reappraise the timing of formation of the first fragments detached from the leading edge of ...
Kylander-Clark, Alexander, Larson, Kyle, Agard, Philippe, Cottle, John, Button, Mark, Rividi, Nicolas, Bonnet, Guillaume, Soret, Mathieu, Guillaume Bonnet, Mark Button, Mathieu Soret, John Cottle, Nicolas Rividi, Benoit Dubacq, Alexander Kylander-Clark, Philippe Agard, Dubacq, Benoit, Kyle Larson   +17 more
core   +1 more source

Joint Geodynamic‐Geophysical Inversion Suggests Passive Subduction and Accretion of the Ontong Java Plateau

Geophysical Research Letters, 2022
In this study, we for the first time applied a joint geodynamic‐geophysical inversion approach to oceanic plateau subduction models, and compared the subduction style and corresponding topography and Bouguer gravity of two representative subduction ...
Hao Dong, Liming Dai, Lijun Liu, Xiaodian Jiang, Sanzhong Li, Wei Gong, Liangliang Wang, Di Wang, Zhong‐Hai Li, Shengyao Yu   +9 more
doaj   +1 more source

Subduction Duration and Slab Dip

Geochemistry, Geophysics, Geosystems, 2020
The dip angles of slabs are among the clearest characteristics of subduction zones, but the factors that control them remain obscure. Here, slab dip angles and subduction parameters, including subduction duration, the nature of the overriding plate, slab
Jiashun Hu, Michael Gurnis
doaj   +1 more source

Subduction initiation and ophiolite crust: new insights from IODP drilling [PDF]

, 2016
International Ocean Discovery Program (IODP) Expedition 352 recovered a high-fidelity record of volcanism related to subduction initiation in the Bonin fore-arc. Two sites (U1440 and U1441) located in deep water nearer to the trench recovered basalts and
Carvallo, C, Prytulak, J, Godard, M, Li, H, Kurz, W, Whattam, SA, Almeev, R, Kutterolf, S, Avery, AJ, Kirchenbaur, M, Nelson, WR, Shimizu, K, Ryan, JG, Chapman, T, Sager, WW, Robertson, AHF, Michibayashi, K, Shervais, JW, Sakuyama, T, Pearce, J, Morgan, S, Python, M, Reagan, M, Petronotis, K, Christeson, GL, Heaton, DE   +25 more
core   +3 more sources