148682 20250123145734.0 doi 10.1016/j.tecto.2013.02.027 sideral 81459 ART-2013-81459 eng Ramón, M. (orcid)0000-0001-7771-6873 A computed tomography approach for understanding 3D deformation patterns in complex folds 2013 Access copy available to the general public Unrestricted Analog models are an important tool for understanding complexly folded and faulted geological structures. In this paper, we propose the use of X-ray computed tomography to accurately reconstruct the geometry of analog models using an orthogonal reference system and to completely characterize deformation patterns within the modeled structure in 3D. The rheology and radiological contrast of various different materials have been studied showing that EVA sheets are a good choice to model buckling layers. After considering various possibilities to define the reference system, we opted to screen-print two orthogonal sets of parallel lines on the surfaces using minium (lead tetroxide). The model was then built with gOcad using a series of CT slices that can be closely spaced. This kind of model allows us to reconstruct the volume distribution of strain ellipsoids and can be very accurate and useful to ascertain the orientation of folded lineations in complex structures as well as to characterize the expected deformation on the surfaces. We have built a simple analog model inspired in the Balzes Anticline (located in the External Sierras, Southern Pyrenees) to illustrate the potential of the technique and to analyze the deformation patterns of this complex curved fold that has accommodated significant magnitudes of vertical axis rotation during its formation. info:eu-repo/grantAgreement/ES/DGA/PI165-09 info:eu-repo/grantAgreement/ES/MICINN/CGL-2006-2289-BTE info:eu-repo/grantAgreement/ES/MICINN/CGL-2009-14214 info:eu-repo/grantAgreement/ES/MICINN/PTA2007-0282 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.866 2013 GEOCHEMISTRY & GEOPHYSICS 18 / 80 = 0.225 2013 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Pueyo, E. L. Universidad de Zaragoza (orcid)0000-0002-0504-2352 Rodríguez-Pintó, A. Ros, L. H. Universidad de Zaragoza (orcid)0000-0003-2367-0536 Pocoví, A. Universidad de Zaragoza (orcid)0000-0003-3197-4177 Briz, J. L. Universidad de Zaragoza (orcid)0000-0001-5940-9837 Ciria, J. C. Universidad de Zaragoza (orcid)0000-0002-0048-3036 1010 770 Universidad de Zaragoza Dpto. Pediatría Radiol.Med.Fís Área Radiol. y Medicina Física 5007 035 Universidad de Zaragoza Dpto. Informát.Ingenie.Sistms. Área Arquit.Tecnología Comput. 2000 428 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Geodinámica Interna 5007 075 Universidad de Zaragoza Dpto. Informát.Ingenie.Sistms. Área Ciencia Comput.Intelig.Ar 593 (2013), 57-72 Tectonophysics Tectonophysics 0040-1951 2608951 http://zaguan.unizar.es/record/148682/files/texto_completo.pdf Postprint 918581 http://zaguan.unizar.es/record/148682/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:148682 articulos driver 2025-01-23-14:55:09 ARTICLE