Results from the ESCI-N3.3 marine deep seismic profile along the Cantabrian continental margin

  1. J. R. Martínez Catalán 1
  2. P. Ayarza Arribas 1
  3. J. A. Pulgar 2
  4. A. Pérez Estaún 3
  5. J. Gallart 3
  6. A. Marcos 2
  7. F. Bastida 2
  8. J. Álvarez-Marrón 4
  9. F. González Lodeiro 5
  10. J. Aller 2
  11. J. J. Dañobeitia 3
  12. E. Banda 3
  13. D. Córdoba 6
  14. M. C. Comas 4
  1. 1 Universidad de Salamanca
    info

    Universidad de Salamanca

    Salamanca, España

    ROR https://ror.org/02f40zc51

  2. 2 Universidad de Oviedo
    info

    Universidad de Oviedo

    Oviedo, España

    ROR https://ror.org/006gksa02

  3. 3 Instituto de Ciencias de la Tierra Jaume Almera
    info

    Instituto de Ciencias de la Tierra Jaume Almera

    Barcelona, España

    ROR https://ror.org/01nsd7y51

  4. 4 Instituto Andaluz de Ciencias de la Tierra
    info

    Instituto Andaluz de Ciencias de la Tierra

    Granada, España

    ROR https://ror.org/00v0g9w49

  5. 5 Universidad de Granada
    info

    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

  6. 6 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

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Journal:
Revista de la Sociedad Geológica de España

ISSN: 0214-2708

Year of publication: 1995

Volume: 8

Issue: 4

Pages: 341-354

Type: Article

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More publications in: Revista de la Sociedad Geológica de España

Abstract

The seismic profile ESCI-N3.3, sub-perpendicular to the strike of the Variscan structures, has imaged the offshore continuation of the central section of the NW lberian Massif. This study describes its main geological features and proposes tectonic interpretations based on geological information and constrained by available refraction/wide-angle reflection data. The main results include the identification of two Mesozoic-Cenozoic sedimentary basins, the occurrence of mid-crustal dipping events related to the fold and thrust tectonics of the Westasturian-Leonese Zone and the possible existence of a crustal-scale basal detachment for this zone. The reflectivity is generally high at lower crustal levels. In addition, dipping events appearing below the reflective lower crust might bear upon Alpine subduction zones.

Data source: Dialnet