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dc.contributor.authorMuñoz, J.A.
dc.contributor.authorHardy, S.
dc.contributor.authorVidal-Royo, O.
dc.contributor.authorKoyi, H.
dc.contributor.authorCardozo, Nestor
dc.coverage.spatialSpain, Pyrenees, Pico del Águilanb_NO
dc.identifier.citationVidal-Royo, O. et al. (2013) Structural evolution of Pico del Águila anticline (External Sierras, southern Pyrenees) derived from sandbox, numerical and 3D structural modelling techniques. Acta Geologica, 11(1), 1-26nb_NO
dc.description.abstractThis paper reports on the integration of different modelling techniques to construct a unified conceptual model of structural evolution of the Pico del Águila anticline (External Sierras, southern Pyrenees, Spain). The structure is well-known example of a detachment fold, which exhibits a N-S structural trend, perpendicular to the general structural trend of the southern Pyrenees (mainly E-W). Based on field observations of an unevenly distributed Triassic décollement, analogue modelling shows how to generate orogen-perpendicular structures which may result in transverse anticlines. The models show how contrasts between high and low friction patches in the basal décollement led to the formation of structures at high angle, centered over the high friction areas. Numerical models investigate the effect of a complex mechanical stratigraphy, characterized by an interlayering of competent and incompetent layers, plus syn-kinematic sedimentation in the fold growth. Based on field data and seismic interpretations, a 3D reconstruction and sequential geomechanical restoration of the Pico del Águila anticline suggests the coexistence of multiple folding mechanisms occurring simultaneously in different units and structural domains of the fold, leading to a complex strain pattern that can not be assessed by simplistic kinematic 2D approaches. By integrating the models with previous data in the region, the benefits and drawbacks of each modelling technique are discussed and an integrated model of structural evolution for the Pico del Águila anticline is presented. This enables a better comprehension of the structure as well as of the processes that drove the evolution of the N-S detachment anticlines in the External Sierras of the southern Pyrenees.nb_NO
dc.publisherUniversitat de Barcelonanb_NO
dc.rightsNavngivelse-DelPåSammeVilkår 4.0 Internasjonal*
dc.subjectanalogue modellingnb_NO
dc.subjectnumerical modellingnb_NO
dc.subject3D reconstructionnb_NO
dc.subjectgeomechanical restorationnb_NO
dc.subjectdetachment anticlinenb_NO
dc.titleStructural evolution of Pico del Águila anticline (External Sierras, southern Pyrenees) derived from sandbox, numerical and 3D structural modelling techniquesnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Geofag: 450nb_NO
dc.source.journalActa Geologicanb_NO

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