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dc.contributor.authorZlotnik, Sergio
dc.contributor.authorJiménez-Munt, Ivone
dc.contributor.authorFernández Gómez, Manel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2017-06-14T10:13:23Z
dc.date.available2017-06-14T10:13:23Z
dc.date.issued2014-02-15
dc.identifier.citationZlotnik, S., Jiménez-Munt, I., Fernandez, M. Coupled mantle dripping and lateral dragging controlling the lithosphere structure of the NW-Moroccan margin and the Atlas Mountains: A numerical experiment. "Lithos", 15 Febrer 2014, vol. 189, p. 16-27.
dc.identifier.issn0024-4937
dc.identifier.urihttp://hdl.handle.net/2117/105402
dc.description.abstractRecent studies integrating gravity, geoid, surface heat flow, elevation and seismic data indicate a prominent lithospheric mantle thickening beneath the NW-Moroccan margin (LAB >200 km-depth) followed by thinning beneath the Atlas Domain (LAB about 80 km-depth). Such unusual configuration has been explained by the combination of mantle underthrusting due to oblique Africa-Eurasia convergence together with viscous dripping fed by asymmetric lateral mantle dragging, requiring a strong crust-mantle decoupling. In the present work we examine the physical conditions under which the proposed asymmetric mantle drip and drag mechanism can reproduce this lithospheric configuration. We also analyse the influence of varying the kinematic boundary conditions as well as the mantle viscosity and the initial lithosphere geometry. Results indicate that the proposed drip-drag mechanism is dynamically feasible and only requires a lateral variation of the lithospheric strength. The further evolution of the gravitational instability can become either in convective removal of the lithospheric mantle, mantle delamination, or subduction initiation. The model reproduces the main trends of the present-day lithospheric geometry across the NW-Moroccan margin and the Atlas Mountains, the characteristic time of the observed vertical movements, the amplitude and rates of uplift in the Atlas Mountains and offers an explanation to the Miocene to Pliocene volcanism. An abnormal constant tectonic subsidence rate in the margin is predicted. (C) 2013 Elsevier B.V. All rights reserved.
dc.format.extent12 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Modelització matemàtica
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshDynamics, Rigid
dc.subject.lcshNumerical analysis
dc.subject.otherMoroccan margin
dc.subject.otherContinental passive margin
dc.subject.otherAtlas Mountains
dc.subject.otherLithospheric structure
dc.subject.otherNumerical modelling
dc.titleCoupled mantle dripping and lateral dragging controlling the lithosphere structure of the NW-Moroccan margin and the Atlas Mountains: A numerical experiment
dc.typeArticle
dc.subject.lemacDinàmica de cossos rígids
dc.subject.lemacAnàlisi numèrica
dc.contributor.groupUniversitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria
dc.identifier.doi10.1016/j.lithos.2013.10.016
dc.description.peerreviewedPeer Reviewed
dc.subject.amsClassificació AMS::70 Mechanics of particles and systems::70E Dynamics of a rigid body and of multibody systems
dc.subject.amsClassificació AMS::65 Numerical analysis::65C Probabilistic methods, simulation and stochastic differential equations
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0024493713003320?via%3Dihub#ks0005
dc.rights.accessOpen Access
local.identifier.drac13065805
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/MICINN//DPI2011-27778-C02-02/ES/DESARROLLO Y ANALISIS DEL METODO PGD PARA PROCESOS DE CONFORMADO TERMOPLASTICO/
local.citation.authorZlotnik, S.; Jiménez-Munt, I.; Fernandez, M.
local.citation.publicationNameLithos
local.citation.volume189
local.citation.startingPage16
local.citation.endingPage27


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