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Kinematic interpretation of the Cañamares shear zone (central Iberian zone, Iberian Massif): from late Variscan strike-slip tectonics to Alpine deformation

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  • Author(s): Moreno Martín, Diana; Fernández Rodríguez, Carlos; Díez Fernández, Rubén; Vicente Muñoz, Gerardo De
  • Document Type:
    Electronic Resource
  • Online Access:
    https://hdl.handle.net/20.500.14352/122847
    PID2021-126347NB-I00
    PID2020-112489GB-C22
    Moreno-Martín, D., Fernández, C., Fernández, R. D., & De Vicente, G. (2025). Kinematic interpretation of the Cañamares shear zone (Central iberian zone, iberian massif): From late Variscan strike-slip tectonics to Alpine deformation. Journal of Structural Geology, 199, 105504. https://doi.org/10.1016/j.jsg.2025.105504
  • Additional Information
    • Publisher Information:
      Elsevier 2025-10
    • Abstract:
      The Cañamares shear zone is located at the eastern end of the Spanish-Portuguese Central System, in the Central Iberian Zone of the Iberian Massif. It is a dextral transpressive structure, generated during the third Variscan deformation stage (D3: 318-300 Ma), which was later reworked during the Permian and by Alpine tectonics. Once the local effects of later phases have been eliminated, the kinematic analysis of the Cañamares shear zone shows that it is a structure due to a monoclinic to slightly triclinic flow, with a vorticity dominated by the simple-shearing component (Wk > 0.81). The convergence direction of the blocks separated by the shear zone would have been N160°E to N-S. The convergence direction calculated for the Cañamares shear zone differs from that of other D3 shear zones of the Iberian Massif. A comparison between these vectors would help to better understand the complexities of the final phases of the Variscan Orogeny in Iberia. However, the Cañamares shear zone lies at the core of an Alpine mega-fold and its current orientation does not probably reflect its primary geometry.
      MCIN/AEI/10.13039/501100011033
      Depto. de Geodinámica, Estratigrafía y Paleontología
      Depto. de Mineralogía y Petrología
      Fac. de Ciencias Geológicas
      TRUE
      pub
    • Subject Terms:
      551.24(460); Cañamares shear zone; Central iberian zone; Iberian massif; Variscan tectonics; Convergence direction; Geodinámica; 2506.20 Geología Estructural; journal article; VoR
    • Availability:
      Open access content. Open access content
      Attribution-NonCommercial-NoDerivatives 4.0 International
      http://creativecommons.org/licenses/by-nc-nd/4.0
      open access
    • Note:
      application/pdf
      0191-8141
      English
    • Other Numbers:
      ESRCM oai:docta.ucm.es:20.500.14352/122847
      0191-8141
      10.1016/j.jsg.2025.105504
      1873-1201
      1534325756
    • Contributing Source:
      REPOSITORIO E-PRINTS UNIVERSIDAD COMPLU
      From OAIster®, provided by the OCLC Cooperative.
    • Accession Number:
      edsoai.on1534325756
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