Folded, shear zones, thrusts and deformation mechanisms in the Cuevas de Cañart basin (Iberian Chain)
DOI:
https://doi.org/10.55407/geogaceta100870Keywords:
Iberian Chain, deformation mechanisms, drag fold, foliation, folded thrustAbstract
The sequence in the development of structures in the Cuevas de Cañart (CC) syncline (Linking zone in the Iberian Chain), provides an opportunity to understand the distribution of deformation mechanisms in thrusts at shallow crustal levels. The CC basin shows three different structural trends that resulted in the folding of structures with Iberian direction (NW-SE), by subsequent folds showing an E W direction. The third structural trend, NE-SW, is dominant in the area. The two studied structures are folded thrusts that, at present day, appear as strike slip faults, parallel or slightly oblique to bedding. Both of them become thrusts after restoring of the second folding stage. The present beds attitudes help to decipher the different mechanisms involved in the deformation along the stratigraphic column: the shallow-dipping thrust in the upper part of the sequence is linked to drag folds in both walls, whereas in the lower part (100 m below, approximately) deformation is resolved by means of a well-developed solution cleavage and brittle faults. The final stages of deformation probably involved the re-activation of some of these faults.
References
Alonso, J. L. A. (1986). Estructura y evolución tectonoestratigráfica de la Región del Manto del Esla (Zona Cantábrica, NW de España). Tesis Doctoral, Univ. de Oviedo.
Antolín-Tomás, B., Liesa, C. L., Casas, A. y Gil-Peña, I. (2007). Revista de la Sociedad Geológica de España, 20(3-4), 351-365.
Calvín-Ballester, P. y Casas, A. (2014). Geological Society, London, Special Publications, 394(1), 39-52. https://doi.org/10.1144/SP394.3
Canérot, J. (1974). Recherches géologiques aux confins des chaînes ibérique et catalane (Espagne). Tesis Doctoral, Univ. de Toulouse.
de Paz-Álvarez, M. I., Llana-Fúnez, S., y Alonso, J. L. (2021). Journal of Structural Geology, 142, 104230. https://doi.org/10.1016/j.jsg.2020.104230
Anderson, E. M. (1951) The dynamics of faulting and dyke formation with applications to Britain. Oliver & Boyd, Edinburgo. Ferrill, D. A., Smart, K. J., Cawood, A. J., y Morris, A. P. (2021). Journal of Structural Geology, 148, 104362. https://doi.org/10.1016/j.jsg.2021.104362
Gil Imaz, A. (1999). La estructura de la Sierra de Cameros: deformación dúctil y su significado a escala cortical. Tesis Doctoral, Univ. de Zaragoza.
Gil Imaz, A., y Pocoví Juan, A. (1994). Revista de la Sociedad Geológica de España, 7(1), 91-113.
González, A. (1989). Análisis tectosedimentario del Cenozoico del borde SE de la depresión del Ebro (sector bajoaragonés) y cubetas ibéricas marginales. Tesis Doctoral, Univ. de Zaragoza.
González, A., Pardo, G., Villena, J. y Martínez, B., (1985). Trabajos de Geología 15, 169-177.
Guimerà Rosso, J. J. (2018). Geologica Acta, 16(4), 0427-438. 10.1344/GeologicaActa2018.16.4.6
Guimerà, J. (1984). Geological Magazine, 121(5), 413-420. https://doi.org/10.1017/S0016756800029940
Izquierdo-Llavall, E., Aldega, L., Cantarelli, V., Corrado, S., Gil-Peņa, I., Invernizzi, C., y Casas, A. M. (2013). Tectonophysics, 608, 303-318. https://doi.org/10.1016/j.tecto.2013.09.027
Liesa, C.L, Casas-Sainz, A.M:, Aurell, M., Simón, J.L., Soria, A.R. (2023). Basin Research, 35 (1), 295-335 https://doi.org/10.1111/bre.12713
Liesa, C. L. y Simón, J. L. (2009). Tectonophysics, 474(1-2), 144-159. https://doi.org/10.1016/j.tecto.2009.02.002
Liesa, C. L., Simón, J. L., y Casas, A. M. (2018). Revista de la Sociedad Geológica de España 31 (2), 23-50.
Millán, H., Pocoví A., y Casas, A. (1995). Revista de la Sociedad Geológica de España, 8(1-2), 73-90.
Steel Hart, L., Casas, A. y Simón, J.L. (en revisión). Journal of structural Geology.
Vernet, E., Casas-Sainz, A. M., Román-Berdiel, T., Marcén, M. y Osácar, M. C. (2019). Journal of Iberian Geology, 45, 111-127. https://doi.org/10.1007/s41513-018-0090-2
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2024 Lourenço Steel Hart, Antonio Casas
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Until the year 2023 the author assigned the copyright to the Sociedad Geológica de España, but from 2024 the author retains the copyright and grants the Sociedad Geológica de España the right of first publication and non-exclusive distribution of each article in all current or future media, while transferring, also non-exclusively, the commercial rights for the distribution of the printed version of Geogaceta. On the other hand, the articles, from the year 2023, are available simultaneously with their publication, under the Creative Commons CC BY-NC-SA 4.0 license, which allows copying, transforming the work, but if any transformation is distributed, the new work must be distributed under the same license, and never for commercial purposes, while acknowledging the authorship and original publication in GEOGACETA, so that the only role of copyright is to give authors control over the integrity of their works and the right to be properly acknowledged and cited.
