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A U–Pb zircon age (479 ± 5 Ma) from the uppermost layers of the Ollo de Sapo Formation near Viveiro (NW Spain): implications for the duration of rifting-related Cambro-Ordovician volcanism in Iberia

Published online by Cambridge University Press:  15 August 2014

M.A. LOPEZ-SANCHEZ ,
A. IRIONDO ,
A. MARCOS  and
F.J. MARTÍNEZ
M.A. LOPEZ-SANCHEZ*
Affiliation:
Departamento de Geología, Universidad de Oviedo, C/Jesús Arias de Velasco s/n, 33005 Oviedo, Spain
A. IRIONDO
Affiliation:
Centro de Geociencias, Universidad Nacional Autónoma de México, Querétaro 76230, México
A. MARCOS
Affiliation:
Departamento de Geología, Universidad de Oviedo, C/Jesús Arias de Velasco s/n, 33005 Oviedo, Spain
F.J. MARTÍNEZ
Affiliation:
Departamento de Geología, Universidad Autónoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
*
†Author for correspondence: [email protected]
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Abstract

The uppermost metavolcanic layer of the Cambro-Ordovician Ollo de Sapo Formation, the largest accumulation of pre-Variscan igneous rocks in the Iberian Peninsula, have been dated in its northernmost part using U–Pb SHRIMP-RG zircon age techniques at 479.0 ± 4.7 Ma. The age obtained is the youngest age found so far in the metavolcanic facies of Ollo de Sapo Formation and represents the cessation of the rifting-related Cambro-Ordovician Ollo de Sapo volcanism at the northernmost tip of the Iberian Peninsula. Our results show that the Cambro-Ordovician volcanism in the NW of the Iberian Peninsula is not as short-lived as previously thought and confirm the correlation between the Cambro-Ordovician volcanic sequences that crop out in the Central Iberian Zone and the French Southern Armorican Massif. Finally, our study suggests that the cessation of the Cambro-Ordovician volcanism along the Ibero-Armorican Arc was synchronic or, less probably, slightly diachronic with younger ages towards the north (in present-day geographical coordinates).

Keywords

Cambro-Ordovician volcanismOllo de Sapo FormationIberian Massifnorthern Gondwana break-upU–Pb SHRIMP-RG zircon dating
Type
Original Articles
Information
Geological Magazine , Volume 152 , Issue 2 , March 2015 , pp. 341 - 350
Copyright
Copyright © Cambridge University Press 2014 

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References

Arce-duarte, J. M., Fernández-Tomás, J. & Monteserín-López, V. 1977. Mapa geológico de España, scale 1:50.000, 2nd series, no. 2, Cillero. Madrid, Instituto Geológico y Minero de España, 47 pp, 1 fold map.Google Scholar
Arias, D., Farias, P. & Marcos, A. 2002. Estratigrafía y estructura del Antiforme de Ollo de Sapo en el área de Viana do Bolo-A Gudiña (Provincia de Orense, NO de España): nuevos datos sobre la posición estratigráfica de la Formación porfiroide Ollo de Sapo. Trabajos de Geología 23, 9–19.Google Scholar
Ballèvre, M., Fourcade, S., Capdevila, R., Peucat, J.J., Cocherie, A. & Mark Fanning, C. 2012. Geochronology and geochemistry of the Ordovician felsic volcanism in the Southern Armorican Massif (Variscan belt, France): Implications for the breakup of Gondwana. Gondwana Research 21, 1019–36.CrossRefGoogle Scholar
Bastida, F., Marcos, A., Marquínez, J., Pérez-Estaún, A. & Pulgar, J. A. 1984. Mapa Geológico de España, scale 1:200.000, 1st edition, no 1, La Coruña. Madrid, Instituto Geológico y Minero de España, 155 pp, 1 fold map.Google Scholar
Bea, F., Montero, P., González-Lodeiro, F. & Talavera, C. 2007. Zircon inheritance reveals exceptionally fast crustal magma generation processes in Central Iberia during the Cambro-Ordovician. Journal of Petrology 48, 2327–39.CrossRefGoogle Scholar
Bea, F., Montero, P., Talavera, C. & Zinger, T. 2006. A revised Ordovician age for the Miranda do Douro orthogneiss, Portugal. Zircon U-Pb ion-microprobe and LA-ICPMS dating. Geologica Acta 4, 395–401.Google Scholar
Black, L. P., Kamo, S. L., Allen, C. M., Davis, D. W., Aleinikoff, J. N., Valley, J. W., Mundil, R., Campbell, I. H., Korsch, R. J., Williams, I. S. & Foudoulis, C. 2004. Improved 206Pb/238U microprobe geochronology by the monitoring of a trace-element-related matrix effect; SHRIMP, ID-TIMS, ELA-ICP-MS and oxygen isotope documentation for a series of zircon standards. Chemical Geology 205, 115–40.CrossRefGoogle Scholar
Castiñeiras, P., Navidad, M., Liesa, M., Carreras, J. & Casas, J. M. 2008. U–Pb zircon ages (SHRIMP) for Cadomian and Early Ordovician magmatism in the Eastern Pyrenees: new insights into the pre-Variscan evolution of the northern Gondwana margin. Tectonophysics 461, 228–39.CrossRefGoogle Scholar
Charlier, B., Wilson, C., Lowenstern, J., Blake, S., Van Calsteren, P. & Davidson, J. 2005. Magma generation at a large, hyperactive silicic volcano (Taupo, New Zealand) revealed by U–Th and U–Pb systematics in zircons. Journal of Petrology 46, 3–32.CrossRefGoogle Scholar
Deloule, E., Alexandrov, P., Cheilletz, A., Laumonier, B. & Barbey, P. 2002. In situ U-Pb zircon ages for early Ordovician magmatism in the Eastern Pyrénées, France: the Canigou orthogneiss. International Journal of Earth Sciences 91, 398–405.CrossRefGoogle Scholar
Denele, Y., Barbey, P., Deloule, E., Pelleter, E., Olivier, Ph. & Gleizes, G. 2009. Middle Ordovician U–Pb age of the Aston and Hospitalet orthogneissic laccoliths: their role in the Variscan evolution of the Pyrenees. Bulletin de la Societe Geologique de France 180, 209–21.CrossRefGoogle Scholar
Díez-Montes, A. 2007. La Geología del Dominio Ollo de Sapo en las comarcas de Sanabria y Terra do Bolo. Ph.D. thesis, University of Salamanca. Published thesis.Google Scholar
Díez-Montes, A., Martínez-Catalán, J. R. & Bellido-Mulas, F. 2010. Role of the Ollo de Sapo massive felsic volcanism of NW Iberia in the Early Ordovician dynamics of northern Gondwana. Gondwana Research 17, 363–76.CrossRefGoogle Scholar
Farias, P., Gallastegui, G., González-Lodeiro, F., Marquínez, J., Martín-Parra, L. M., Martínez-Catalán, J. R., de Pablo-Maciá, L. R. & Rodríguez-Fernández, L. R. 1987. Aportaciones al conocimiento de la litoestratigrafía y estructura de Galicia Central. Memórias da Facultade de Ciências. Universidade do Porto 1, 411–31.Google Scholar
Fernández-Suárez, J., Gutiérrez-Alonso, G., Jenner, G. A. & Tubrett, M. N. 1999. Crustal sources in Lower Palaeozoic rocks from NW Iberia: insights from laser ablation U-Pb ages of detrital zircons. Journal of the Geological Society of London 156, 1065–68.CrossRefGoogle Scholar
Fernández-Suárez, J., Gutiérrez-Alonso, G., Jenner, G. A. & Tubrett, M. N. 2000. New ideas on the Proterozoic-Early Palaeozoic evolution of NW Iberia: insights from U-Pb detrital zircon ages. Precambrian Research 102, 185–206.CrossRefGoogle Scholar
Gutiérrez-Alonso, G., Fernández-Suárez, J., Gutiérrez-Marco, J. C., Corfu, F., Brendan-Murphy, J. & Suárez, M. 2007. U-Pb depositional age for the upper Barrios Formation (Armorican Quartzite facies) in the Cantabrian zone of Iberia: Implications for stratigraphic correlation and paleogeography. In The Evolution of Rheic Ocean: From Avalonian-Cadomian Active Margin to Alleghenian-Variscan Collision. (eds Nance, R. D., Kraft, P. & Zulauf, G.), pp. 287–96. Geological Society of America, Special Paper no. 423.Google Scholar
Julivert, M., Fontbote, J., Ribeiro, A. & Conde, I. 1972 a. Mapa tectónico de la Península Ibérica y Baleares. Instituto Geológico y Minero de España, Madrid. pp. 246–65.Google Scholar
Julivert, M., Marcos, A. & Truyols, J. 1972 b. L’evolution paleogeographique du NW de l’Espagne pendant l’Ordovicien-Silurien. Bulletin de la Société Géologique et Minéralogique de Bretagne 4, 1–7.Google Scholar
Lancelot, J. R., Allegret, A. & Iglesias-Ponce-de-León, M. 1985. Outline of Upper Precambrian and Lower Palaeozoic evolution of the Iberian Peninsula according to U-Pb dating of zircons. Earth and Planetary Science Letters 74, 325–37.CrossRefGoogle Scholar
Lotze, F. 1945. Zur Gliederung der Varisziden der Iberischen Meseta. Geotekton Forsch 6,78–92.Google Scholar
Ludwig, K. R. 2001. SQUID, version 1.02, A User's Manual. Berkeley Geochronology Center, Special Publication no. 2, 17 pp.Google Scholar
Ludwig, K. R. 2012. ISOPLOT, version 3.75. A geochronological toolkit for Microsoft Excel. Berkeley Geochronology Center, Special Publication no. 5, 75 pp.Google Scholar
Marcos, A. 1973. Las series del Paleozoico inferior y la estructura herciniana del occidente de Asturias (NW de España). Trabajos de Geología 6, 1–113.Google Scholar
Marcos, A., Bastida, F., Martínez-Catalán, J. R., Gutiérrez-Marco, J. C. & Pérez-Estaún, A. 2004. Estratigrafía y paleogeografía de la Zona Asturccidental-leonesa. In: Geología de España (ed. Vera, J. A.), pp. 49–54. SGE-IGME, Madrid.Google Scholar
Martínez, F. J., Iriondo, A., Dietsch, C., Aleinikoff, J. N., Peucat, J. J., Cirés, J., Reche, J. & Capdevila, R. 2011. U-Pb SHRIMP-RG zircon ages and Nd signature of lower Paleozoic rifting-related magmatism in the Variscan basement of the Eastern Pyrenees. Lithos 127, 10–23.CrossRefGoogle Scholar
Martínez-Catalán, J. R., Gutiérrez-Marco, J. C., Hacar, M. P., Barros-Lorenzo, J. C., Gonzále-Clavijo, E. & González-Lodeiro, F. 2004. Dominio del Ollo de Sapo: Estratigrafía, secuencia preorogénica del Ordovícico-Devónico. In Geología de España (ed. Vera, J. A.), pp. 72–75. SGE-IGME, Madrid.Google Scholar
Martínez-Catalán, J. R., Hacar-Rodríguez, M. P., Villar-Alonso, P., Pérez-Estaún, A. & González-Lodeiro, F. 1992. Lower Paleozoic extensional tectonics in the limit between the West Asturian-leonese and Central Iberian Zones of the Variscan Fold-Belt in NW Spain. Geologische Rundschau 81, 545–60.CrossRefGoogle Scholar
Montero, P., Bea, F., González-Lodeiro, F., Talavera, C. & Whitehouse, J. 2007. Zircon ages of the metavolcanic rocks and metagranites of the Ollo de Sapo Domain in central Spain: implications for the Neoproterozoic to Early Palaeozoic evolution of Iberia. Geological Magazine 144, 963–76.CrossRefGoogle Scholar
Montero, P., Talavera, C., Bea, F., Lodeiro, F. G. & Whitehouse, M. J. 2009. Zircon geochronology of the Ollo de Sapo Formation and the age of the Cambro-Ordovician Rifting in Iberia. The Journal of Geology 117, 174–91.CrossRefGoogle Scholar
Navidad, M. 1978. Las series glandulares ‘Ollo de Sapo’ en los sectores nord-occidental y centro-oriental del Macizo Ibérico. Estudios Geológicos 34, 511–56.Google Scholar
Navidad, M., Peinado, M. & Casillas, R. 1992. El magmatismo pre-Hercínico del Centro Penínsular (Sistema Central español). In Paleozoico Inferior de Iberoamérica (eds Gutiérrez-Marco, J. C., Saavedra, J. & Rábano, I.), pp. 485–494. Cáceres: Universidad de Extremadura.Google Scholar
Nourse, J. A., Premo, W. R., Iriondo, A. & Stahl, E. R. 2005. Contrasting Proterozoic basement complexes near the truncated margin of Laurentia, northwestern Sonora–Arizona international border region. In The Mojave-Sonora Megashear Hypothesis: Development, Assessment and Alternatives (eds Anderson, T. H., Nourse, J. A., McKee, J. W. & Steiner, M. B.), pp. 123–82. Geological Society of America, Special Paper no. 393.Google Scholar
Ortega, L., Carracedo, M., Larrea, F. J. & Gil-Ibarguchi, J. I. 1996. Geochemistry and tectonic environment of volcanosedimentary rocks from the Ollo de Sapo Formation (Iberian Massif, Spain). In Petrology and Geochemistry of Magmatic Suites of Rocks in the Continental and Oceanic Crust (ed. Demaiffe, D.), pp. 277–90. Tervuren: Royal Museum for Central Africa.Google Scholar
Parga-Pondal, I., Matte, P. & Capdevila, R. 1964. Introduction à la géologie de l’Ollo de Sapo’, formation porphyroide anté-silurienne du Nord-Ouest de l’Espagne. Notas y Comunicaciones del Instituto Geológico y Minero de España 76, 119–53.Google Scholar
Parga-Pondal, I., Parga-Peinador, J., vegas, R. & Marcos, A. 1982. Mapa Xeolóxico de Macizo Hespérico e. 1:500.000. Publicaciones del Área de Xeoloxía e Minería. Seminario de estudos galegos, Edificio de Castro, A Coruña.Google Scholar
Pérez-Estaún, A., Bastida, F., Martínez-Catalán, J. R., Gutiérrez-Marco, J. C., Marcos, A. & Pulgar, J. A. 1990. West Asturian-leonese Zone: Stratigraphy. In Pre-Mesozoic Geology of Iberia (eds Dallmeyer, R. D. & Martínez, E.), pp. 92–102. Springer-Verlag, Berlin, Heidelberg.CrossRefGoogle Scholar
Reche, J., Martínez, F. J. & Arboleya, M. L. 1998. Low- to medium-pressure Variscan metamorphism in Galicia (NW Spain): evolution of a kyanite-bearing synform and associated bounding antiformal domains. In What Drives Metamorphism and Metamorphic Reactions? (eds Treloar, P. J. & O’Brien, P. J.,), pp. 61–79. Geological Society of London, Special Publication no. 138.Google Scholar
Riemer, W. 1963. Entwicklung des Paläozoikums in der Südlichen Provinz Lugo (Spanien). Neues Jahrbuch für Geolgie und Paläontologie, Abhandlungen 117, 273–85.Google Scholar
Shapiro, S. S. & Wilk, M. B. 1965. An analysis of variance test for normality (complete samples). Biometrika 52, 591–611.CrossRefGoogle Scholar
Stacey, J. S. & Kramers, J. D. 1975. Approximation of terrestrial Lead isotope evolution by a two-stage model. Earth and Planetary Science Letters 26, 207–21.CrossRefGoogle Scholar
Valverde-Vaquero, P. & Dunning, G. R. 2000. New U-Pb ages for Early Ordovician magmatism in Central Spain. Journal of the Geological Society of London 157, 15–26.CrossRefGoogle Scholar
Viallete, Y., Casquet, C., Fúster, J. M., Ibarrola, E., Navidad, M., Peinado, M. & Villaseca, C. 1986. Orogenic granitic magmatism of pre-Hercynian age in the Spanish Central System (S.C.S.). Terra Cognita 6, 143.Google Scholar
Viallete, Y., Casquet, C., Fúster, J. M., Ibarrola, E., Navidad, M., Peinado, M. & Villaseca, C. 1987. Geochronological study of orthogneisses from the Sierra de Guadarrama (Spanish Central System). Neues Jahrbuch für Mineralogie, Monatshefte 10, 465–79.Google Scholar
Welch, B. L. 1947. The generalization of “Student's” problem when several different population variances are involved. Biometrika 34, 28–35.Google ScholarPubMed
Wendt, I. & Carl, C. 1991. The statistical distribution of the mean squared weighted deviation. Chemical Geology: Isotope Geoscience section 86: 275–85.Google Scholar
Wildberg, H. G., Bischoff, L. & Baumann, A. 1989. U-Pb ages of zircons from meta-igneous and metasedimentary rocks of the Sierra de Guadarrama: implications for the Central Iberian crustal evolution. Contributions to Mineralogy and Petrology 103, 253–62.CrossRefGoogle Scholar
Williams, I. S. 1998. U-Th-Pb geochronology by ion microprobe. In Applications of Microanalytical Techniques to Understanding Mineralizing Processes (eds McKibben, M. A. & Shanks, W. C.), pp. 1–35. Society of Economic Geologist, Littleton, Colorado, Reviews in Economic Geology 7.Google Scholar