1887
Volume 29, Issue 4
  • E-ISSN: 1365-2117

Abstract

Abstract

The distribution and structure of the Mesozoic and Cenozoic cover within the central part of the North Iberian Margin (Bay of Biscay) is analysed based on a dense set of 2D seismic reflection lines and logs. The integration of well data allows the recognition of seven seismostratigraphic units and the construction of a surface that illustrates the 3D morphology of this area at the time of the Jurassic rifting. The study zone comprises what is known as Le Danois Bank, a basement high, and the Asturian Basin, one of the sedimentary basins originated during the Iberian rifting at the end of the Paleozoic. Its development continued with the oceanisation of the Bay of Biscay as a failed arm of the Atlantic rift; later, during the Cenozoic, a drastic change in tectonic regime induced the partial closure of Biscay and building up the Cantabrian−Pyrenean chain along the northern border of Iberia. This compressional period left its imprint in the Asturian Basin sediments in the form of a mild inversion and general uplift. The geometry of the basin bottom appears as an asymmetric bowl thinning out towards the edges, with a main E‐W depocenter, separated by E‐W striking faults from a secondary one. Those bounding faults show twisted trends in the north, interpreted as a consequence of the compressional period, when a transfer zone in a N‐S direction formed between the two E‐W striking deformation fronts in Biscay. This study shows that the transfer zone extends further to the west, reaching the longitude of Le Danois Bank. The maximum thickness of the filling within the Asturian Basin is estimated in more than 10 km, deeper than assessed in previous studies. The recognition of frequent halokynetic structures at this longitude is another observation worth to remark. Based on this study, it is suggested that the basin formed on top of a distal basement block of stretched crust limiting with the hyperextended rifted domain of Biscay. This location largely conditioned its deformation during the late compression.

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2016-03-24
2024-03-29
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References

  1. Alonso, J.L., Pulgar, J.A., García‐Ramos, J.C. & Barba, P. (1996) Tertiary basins and alpine tectonics in the Cantabrian Mountains, NW Spain. In: Tertiary Basins of Spain: The Stratigraphic Record of Crustal Kinematics (Ed. by P.F.Friend , C.J.Dabrio ), pp. 214–227. Cambridge University Press, Cambridge.
    [Google Scholar]
  2. Álvarez‐Marrón, J., Pérez‐Estaún, A., Dañobeitia, J.J., Pulgar, J.A., Martínez‐Catalán, J.R., Marcos, A., Bastida, F., Arribas, P.A., Aller, J., Gallart, J., Banda, E., Comas, M.C. & Córdoba, D. (1996) Seismic Structure of the northern continental margin of Spain from ESCIN Deep seismic profiles. Tectonophysics, 264, 153–174.
    [Google Scholar]
  3. Álvarez‐Marrón, J., Rubio, E. & Torné, M. (1997) Subduction‐related structures in the North Iberian Margin. J. Geophys. Res., 102, 22497–22511.
    [Google Scholar]
  4. Ayarza, P., Martínez‐Catalan, J.R., Gallart, J., Pulgar, J.A. & Dañobeitia, J.J. (1998) Estudio Sísmico de la Corteza Ibérica Norte 3.3: A seismic image of the Variscan crust in the hinterland of the NW Iberian Massif. Tectonics, 17, 171–186.
    [Google Scholar]
  5. Boillot, G. & Malod, J. (1988) The north and north‐west Spanish continental margin: A review. Rev. Soc. Geol. España, 1(3–4), 295–316.
    [Google Scholar]
  6. Boillot, G., Dupeuble, P.A. & Malod, J. (1979) Subduction and tectonics on the continental margin off northern Spain. Mar. Geol., 32, 53–70.
    [Google Scholar]
  7. Capdevila, R., Boillot, G., Lepvrier, C., Malod, J.A. & Mascle, G. (1980) Metamorphic and plutonic rocks from the Le Danois Bank (North Iberian Margin). C. R. Hebd. Seances Acad. Sci. D, 291, 317–320.
    [Google Scholar]
  8. Ercilla, G., Casas, D., Estrada, F., Vázquez, J.T., Iglesias, J., García, M., Gómez, M., Acosta, J., Gallart, J., Maestro‐González, A. & MARCONI Team (2008) Morphosedimentary features and recent depositional architectural model of the Cantabrian continental margin. Mar. Geol., 247, 61–83. doi:10.1016/j.margeo.2007.09.009.
    [Google Scholar]
  9. Fernández‐Viejo, G. (1997) Estructura cortical de la Cordillera Cantábrica y su transición a la Cuenca del Duero a partir de datos de sísmica de reflexión/refracción de gran ángulo. PhD Thesis, University of Barcelona, Spain.
  10. Fernández‐Viejo, G., Gallart, J., Pulgar, J.A., Gallastegui, J., Dañobeitia, J.J. & Córdoba, D. (1998) Crustal transition between continental and oceanic domains along the North Iberian margin from wide angle seismic and gravity data. Geophys. Res. Lett., 25, 4249–4252.
    [Google Scholar]
  11. Fernández‐Viejo, G., Gallastegui, J., Pulgar, J.A. & Gallart, J. (2011) The MARCONI reflection seismic data: A view into the eastern part of the Bay of Biscay. Tectonophysics, 508, 34–41. doi:10.1016/j.tecto.2010.06.020.
    [Google Scholar]
  12. Fernández‐Viejo, G., Pulgar, J.A., Gallastegui, J. & Quintana, L. (2012) The fossil accretionary wedge of the Bay of Biscay: Critical wedge analysis on depth‐migrated seismic sections and geodynamic implications. J. Geol., 120, 315–331. doi:10.1086/664789.
    [Google Scholar]
  13. Ferrer, O., Roca, E., Benjumea, B., Muñoz, J.A., Ellouz, N. & MARCONI Team (2008) The deep seismic reflection Marconi‐3 Profile: Role of extensional Mesozoic structure during the Pyrenean contractional deformation at the eastern part of the Bay of Biscay. Mar. Petrol. Geol., 25, 714–730. doi:10.1016/j.marpetgeol.2008.06.002.
    [Google Scholar]
  14. Fügenschuh, B., Froitzheim, R., Capdevila, R. & Boillot, G. (2003) Offshore granulites from the Bay of Biscay margins: Fission tracks constrain a Proterozoic to Tertiary thermal history. Terra Nova, 15, 337–342.
    [Google Scholar]
  15. Gallastegui, J. (2000) Estructura cortical de la cordillera y margen continental cantábricos: perfiles ESCI‐N. Trabajos Geol., 22, 1–223.
    [Google Scholar]
  16. Gallastegui, J., Pulgar, J.A. & Gallart, J. (2002) Initiation of an active margin at the North Iberian continent‐ocean transition. Tectonics, 21, 15‐1–15‐14. doi: 10.1029/2001TC901046.
    [Google Scholar]
  17. García‐Mondéjar, J. (1989) Strike‐slip subsidence of the Basque‐Cantabrian basin of northern Spain and its relationship to Aptian‐Albian opening of Bay of Biscay. In: Extensional Tectonics and Stratigraphy of the North Atlantic Margins (Ed. by A.J.Tankard & H.R.Balkwill ), AAPG Mem., ANN. Assoc. of Pet. Geol. Tulsa, Oklahoma, 46, 395–409.
    [Google Scholar]
  18. Gutiérrez‐Claverol, M. & Gallastegui, J. (2002) Prospección de hidrocarburos en la plataforma continental asturiana. Trabajos Geol., 23, 21–34.
    [Google Scholar]
  19. Hudek, M.R. & Jackson, M.P.A. (2007) Terra Infirma: Understanding salt tectonics. Earth Sci. Rev., 82, 1–28. doi:10.1016/j.earscirev.2007.01.001.
    [Google Scholar]
  20. Jammes, S., Manatschal, G., Lavier, L. & Masini, E. (2009) Tectonosedimentary evolution related to extreme crustal thinning ahead of a propagating ocean: Example of the western Pyrenees. Tectonics, 28, TC4012. doi: 10.1029/2008TC002406.
    [Google Scholar]
  21. Jammes, S., Lavier, L. & Manatschal, G. (2010) Extreme crustal thinning in the Bay of Biscay and the Western Pyrenees: From observations to modeling. Geochem. Geophys. Geosyst., 11, Q10016. doi:10.1029/2010GC003218.
    [Google Scholar]
  22. Lavier, L. & Manatschal, G. (2006) A mechanism to thin the continental lithosphere at magma‐poor margins. Nature, 440, 324–328.
    [Google Scholar]
  23. Malod, J.A., Boillot, G., Capdevila, R., Dupeuble, P.A., Lepvrier, C., Mascle, G., Muller, C. & Taugordeau‐Lantz, J. (1982) Subduction and tectonics on the continental margin off northern Spain: Observations with the submersible Cyanna. In: Trench‐fore Arc Geology (Ed. by J.K.Legger ), Geol. Soc. Spec. Publ., 10, pp. 309–315.
    [Google Scholar]
  24. Marillier, F., Tomassino, A., Patriat, P. & Pinet, B. (1988) Deep structure of the Aquitaine shelf: Constraints from expanding spread profiles on the ECORS bay of Biscay transect. Mar. Petrol. Geol., 5, 65–74. doi:10.1016/0264‐8172(88)90040‐2.
    [Google Scholar]
  25. Montadert, L., DE Charpal, O., Robert, D., Guennoc, G. & Sibuet, J.C. (1979) Northeast Atlantic passive continental margin: Rifting and subsidence processes. In: Deep Drilling Results in the Atlantic Ocean Continental Margin and Paleoenvironment (Ed. by M.Talwani , W.Hay & W.B.H.Ryan ), Am. Geophys. Un., Washington D.C., 3, 154–186.
    [Google Scholar]
  26. Peron‐Pinvidic, G. & Manatschal, G. (2009) The final evolution at deep magma‐poor passive margins from Iberia‐Newfoundland: A new point of view. Int. J. Earth Sci., 98, 1581–1597.
    [Google Scholar]
  27. Pulgar, J.A., Gallart, J., Fernández‐Viejo, G., Pérez‐Estaún, A., Álvarez‐Marrón, J. & ESCIN Group (1996) Seismic image of the Cantabrian Mountains in the western extension of the Pyrenees from integrated ESCIN reflection and refraction data. Tectonophysics, 264, 1–19.
    [Google Scholar]
  28. Pulgar, J.A., Alonso, J.L., Espina, R.G. & Marín, J.A. (1999) La deformación alpina en el basamento varisco de la Zona Cantábrica. Trabajos Geol. Univ. Oviedo, 21, 283–294.
    [Google Scholar]
  29. Quintana, L. (2012) Extensión e inversión tectónica en el sector central de la Región Vasco‐Cantábrica PhD Thesis, University of Oviedo, Spain.
  30. Quintana, L., Alonso, J.L., Pulgar, J.A. & Rodríguez‐Fernández, L.R. (2006) Transpressional inversion in an extensional transfer zone (the Saltacaballos fault, northern Spain). J. Struct. Geol., 28, 2038–2048. doi:10.1016/jsg.2006.06.013.
    [Google Scholar]
  31. Rat, P. (1988) The Basque‐Cantabrian basin between the Iberian and European plates some facts but still many problems. Rev. Soc. Geol. Esp., 1, 328–348.
    [Google Scholar]
  32. Riaza, C. (1996) Inversión estructural en la cuenca mesozoica del offshore asturiano. Revisión de un modelo exploratorio. Geogaceta, 20, 169–171.
    [Google Scholar]
  33. Roca, E., Muñoz, J.A., Ferrer, O. & Ellouz, N. (2011) The role of the Bay of Biscay Mesozoic extensional structure in the configuration of the Pyrenean orogen: Constraints from the MARCONI deep seismic reflection survey. Tectonics, 30, 1–33. doi:10.1029/2010TC002735.
    [Google Scholar]
  34. Roest, W.R. & Srivastava, S.P. (1991) Kinematics of the plate boundaries between Eurasia, Iberia and Africa in the North Atlantic form the Late Cretaceous to the present. Geology, 19, 613–616. doi:10.1130/0091‐7613.
    [Google Scholar]
  35. Ruiz, M. (2007) Caracterització structural I sismotectònica de la litosfera en el domini Pirenaico‐Cantàbric a partir de mètodes de sísmica active I passive. University of Barcelona, Spain. 354 pp.
  36. Sibuet, J.C., Srivastava, S.P. & Spakman, W. (2004) Pyrenean orogeny and plate kinematics. J. Geophys. Res., B08104, 109, 1–18, doi: 10.1029/2003JB002514.
    [Google Scholar]
  37. Soler, R., López‐Vilchez, J. & Riaza, C. (1981) Petroleum geology of the Bay of Biscay. In: Petroleum Geology of the Continental Shelf of North‐West Europe (Ed. by L.V.Illing , G.D.Hobson ), pp. 474–482. Institute of Petroleum, London.
    [Google Scholar]
  38. Thinon, I., Fidalgo‐González, L., Réhault, J.P. & Olivet, J.L. (2001) Déformations pyrénéennes dans le golfe de Gascogne. C. R. Acad. Sci. Paris Sci. Terre et des Planètes/Earth Planet. Sci., 332, 561–568.
    [Google Scholar]
  39. Thinon, I., Réhault, J.P. & Fidalgo‐González, L. (2002) La coverture sédimentaire syn‐rift de la marge Nord‐Gascogne et du Bassin armoricain (golfe de Gascogne): à partir de nouvelles données de sismique réflexion. Bull. Soc. Geol. Fr., 173, 515–522.
    [Google Scholar]
  40. Thinon, I., Matias, L., Réhault, J.P., Hirn, A., Fidalgo‐González, L. & Avedik, F. (2003) Deep Structure of the Armorican Basin (Bay of Biscay): A review from Norgasis seismic reflection and refraction data. J. Geol. Soc., 160, 99–116.
    [Google Scholar]
  41. Tugend, J., Manatschal, G., Kusznir, N.J., Masini, E., Mohn, G. & Thinon, I. (2014a) Formation and deformation of hyperextended rift systems: Insigths from rift domain mapping in the Bay of Biscay‐Pyrenees. Tectonics, 33, 1239–1276. doi:10.1002/2014TC003529.
    [Google Scholar]
  42. Tugend, J., Manatschal, G., Kusznir, N.J. & Masini, E. (2014b) Characterizing and identifying structural domains at rifted continental margins: Application to the Bay of Biscay margins and its Western Pyrenean fossil remnants. In: Sedimentary Basins and Crustal Processes at Continental Margins: From Modern Hyper‐extended Margins to Deformed Ancient Analogues. J. Geol. Soc. London. Spec. Pub., 413, 171–203. doi: 10.1144/SP413.3.
    [Google Scholar]
  43. Van Rooij, D., Iglesias, J., Hernández‐Molina, F.J., Ercilla, G., Gómez‐Ballesteros, M., Casas, D., Llave, E., de Hauwere, A., García‐Gil, S., Acosta, J. & Henriet, J.P. (2010) The Le Danois Contourite Depositional System: Interactions between the Mediterranean outflow water and the upper Cantabrian slope (North Iberian margin). Mar. Geol., 274, 1–20. doi:10.1016/j.margeo.2010.03.001).
    [Google Scholar]
  44. Vergés, J. & García‐Senz, J. (2001) Mesozoic evolution and Cenozoic inversion of the Pyrenean rift. In: Peri‐Tethyan Rift/Wrench Basins and Passive Margins (Ed. by P.A.Ziegler , W.Cavazza & A.H.F.Robertson ), Peri‐Tethys Mem., 6, Mem. Mus. Natl. Hist. Nat., Paris, 186, 187–212.
    [Google Scholar]
  45. Vissers, R.L.M. & Meijer, P.T.H. (2012) Iberian plate kinematics and alpine collision in the Pyrenees. Earth Sci. Rev., 114, 61–83. doi: 10.1016/j.earscirev.2012.05.001.
    [Google Scholar]
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