Controls on subduction reorganization in the Hellenic margin, eastern Mediterranean

In subduction modeling, interactions between the down‐going slab and neighboring plates are often neglected. Here, we have modeled the interactions between a subducting and an upper plate and show that, in such a system, subducting plate advance towards the stationary margin accommodates convergence...

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Podrobná bibliografie
Vydáno v:	Geophysical research letters Ročník 37; číslo 14
Hlavní autoři:	Capitanio, F. A., Zlotnik, S., Faccenna, C.
Médium:	Journal Article Publikace
Jazyk:	angličtina
Vydáno:	Washington, DC Blackwell Publishing Ltd 01.07.2010 American Geophysical Union John Wiley & Sons, Inc
Témata:	74 Mechanics of deformable solids 74S Numerical methods Anàlisi numèrica Boundary conditions Classificació AMS Continental dynamics Earth sciences Earth, ocean, space Exact sciences and technology Geophysics Hellenic Lower mantle Marine geology Matemàtiques i estadística Models, Teoria dels Mètodes numèrics Numerical methods and algorithms Oceanography Plate tectonics subduction Àrees temàtiques de la UPC East Mediterranean Mediterranean Sea models lower mantle penetration Thick plate Modeling Convergence subduction style transient phenomena tectonics boundary conditions slabs trenches
ISSN:	0094-8276, 1944-8007
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Popis
Shrnutí:	In subduction modeling, interactions between the down‐going slab and neighboring plates are often neglected. Here, we have modeled the interactions between a subducting and an upper plate and show that, in such a system, subducting plate advance towards the stationary margin accommodates convergence. When interactions with the lower mantle are included in this system, deeper penetration of the slab allows transient increases in subduction rates and weakening in the upper plate. However this does not last long enough to mobilize the trench away from the upper plate. The constraints imposed by the convergence of major plates are more effective in reorganizing the tectonic style, by hampering, or even locking, the subducting plate motions resulting in sustained rollback and back‐arc opening over large time periods. A comparison with the tectonics of the Hellenic margin suggests that such boundary conditions might be the key to the reorganization of plate motions in this area.
Bibliografie:	ark:/67375/WNG-5C7W9PKN-X istex:60899126D040BDAA295B3AE42B43F92586844057 ArticleID:2010GL044054 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 14
ISSN:	0094-8276 1944-8007
DOI:	10.1029/2010GL044054