Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-25T08:19:43.814Z Has data issue: false hasContentIssue false
  • English
  • Français

A revised Aquitanian age for the emplacement of the Ronda peridotites (Betic Cordilleras, southern Spain)

Published online by Cambridge University Press:  09 September 2010

J. J. ESTEBAN ,
J. CUEVAS ,
J. M. TUBÍA ,
S. SERGEEV  and
A. LARIONOV
J. J. ESTEBAN*
Affiliation:
Departamento de Geodinámica, Facultad de Ciencia y Tecnología, Universidad del País Vasco, apartado 644, 48080 Bilbao, Spain
J. CUEVAS
Affiliation:
Departamento de Geodinámica, Facultad de Ciencia y Tecnología, Universidad del País Vasco, apartado 644, 48080 Bilbao, Spain
J. M. TUBÍA
Affiliation:
Departamento de Geodinámica, Facultad de Ciencia y Tecnología, Universidad del País Vasco, apartado 644, 48080 Bilbao, Spain
S. SERGEEV
Affiliation:
Centre of Isotopic Research, VSEGEI, 199106 St Petersburg, Russia
A. LARIONOV
Affiliation:
Centre of Isotopic Research, VSEGEI, 199106 St Petersburg, Russia
*
†Author for correspondence: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

The hot emplacement of the Ronda peridotites (Betic Cordilleras) developed a dynamothermal aureole and partial melts that led to the intrusion of granite dykes in the peridotites. Previous geochronological data place rather broad limits for this event between 22 and 19 Ma. Analyses of neocrystalline zircon rims from large zircon populations yield a U–Pb SHRIMP age of 22.3±0.7 Ma for the dynamothermal aureole formation, and intrusion ages of granite dykes between 22.6±1.8 and 21.5±3.8 support that conclusion. Therefore, these new ages provide a more robust constraint on the hot emplacement of the Ronda peridotites at middle crustal levels.

Keywords

Betic CordillerasRonda peridotitesanatexisdykeU–Pb SHRIMP
Type
Rapid Communication
Information
Geological Magazine , Volume 148 , Issue 1 , January 2011 , pp. 183 - 187
Copyright
Copyright © Cambridge University Press 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Black, L. P., Kamo, S. L., Allen, C. M., Aleinikoff, J. N., Davis, D. W., Korsch, R. J. & Foudoulis, C. 2003. TEMORA 1: a new zircon standard for Phanerozoic U–Pb geochronology. Chemical Geology 200, 155–70.CrossRefGoogle Scholar
Cuevas, J., Esteban, J. J. & Tubía, J. M. 2006. Tectonic implications of the granite dyke swarm in the Ronda peridotites (Betic Cordilleras, Southern Spain). Journal of the Geological Society, London 163, 631–40.CrossRefGoogle Scholar
Esteban, J. J., Sánchez-Rodríguez, L., Seward, D., Cuevas, J. & Tubía, J. M. 2004. Late thermal history of the Ronda area, southern Spain. Tectonophysics 398, 81–92.CrossRefGoogle Scholar
Esteban, J. J., Cuevas, J., Vegas, N. & Tubía, J. M. 2008. Deformation and kinematics in a melt-bearing shear zone from the Western Betic Cordilleras (Southern Spain). Journal of Structural Geology 30, 380–93.CrossRefGoogle Scholar
Larionov, A. N., Andreichev, V. A. & Gee, D. G. 2004. The Vendian alkaline igneous suite of the northern Timan: ion microprobe U–Pb zircon ages of gabbros and syenite. In The Neoproterozoic Timanide Orogen of Eastern Baltica (eds Gee, D. G. & Pease, V. L.), pp. 69–74. Geological Society of London, Memoir no. 30.Google Scholar
Lundeen, M. T. 1978. Emplacement of the Ronda peridotite, Sierra Bermeja, Spain. Geological Society of America Bulletin 89, 172–80.2.0.CO;2>CrossRefGoogle Scholar
Ludwig, K. R. 2001. SQUID 1.02: A user manual, a geochronological for Microsoft Excel. Berkeley Geochronology Center Special Publication, Berkeley, USA.Google Scholar
Ludwig, K. R. 2003. User's Manual for Isoplot/Ex, Version 3.00, A Geochronological Toolkit for Microsoft Excel. Berkeley Geochronology Center Special Publication, Berkeley, USA.Google Scholar
Monié, P., Torres-Roldán, R. L. & García-Casco, A. 1994. Cooling and exhumation of the Western Betic Cordilleras, 40Ar/39Ar thermochronological constraints on a collapsed terrane. Tectonophysics 238, 353–79.CrossRefGoogle Scholar
Navarro-Vilá, F. & Tubía, J. M. 1983. Essai d'une nouvelle differentiation des Nappes Alpujarrides dans le secteur occidental des Cordillères Bétiques (Andalousie, Espagne). Comptes Rendus de l'Académie des Sciences, Paris 296, 111–14.Google Scholar
Priem, H. N. A., Boelrijk, N. A. I. M., Hebeda, E. H., Oen, I. S., Verdurmen, E. A. Th. & Verschure, R. H. 1979. Isotopic dating of the emplacement of the ultramafic masses in the Serrania de Ronda. Contributions to Mineralogy and Petrology 70, 103–9.CrossRefGoogle Scholar
Sánchez-Rodríguez, L. 1998. Pre-Alpine and Alpine evolution of the Ronda ultramafic Complex and its country-rocks (Betic chain): U–Pb SHRIMP and fission-track dating. Published thesis, ETH, Zürich, 170 pp.Google Scholar
Sánchez-Rodríguez, L. & Gebauer, D. 2000. Mesozoic formation of pyroxenites and gabbros in the Ronda area (southern Spain), followed by Early Miocene subduction metamorphism and emplacement into the middle crust: U–Pb sensitive high-resolution ion microprobe dating of zircon. Tectonophysics 316, 19–44.CrossRefGoogle Scholar
Sosson, M., Morillon, A. C., Bourgois, J., Féraud, G., Poupeau, G. & Saint-Marc, P. 1998. Late exhumation stages of the Alpujarride Complex (western Betic Cordilleras, Spain): new thermochronological and structural data on Los Reales and Ojen nappe. Tectonophysics 285, 253–73.CrossRefGoogle Scholar
Stacey, 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
Steiger, R. H. & Jäger, E. 1977. Subcommission on geochronology: convention on the use of decay constants in geo- and cosmochronology. Earth and Planetary Science Letters 36, 359–62.CrossRefGoogle Scholar
Tubía, J. M. 1988. Estructura de los Alpujárrides occidentales: cinemática y condiciones de emplazamiento de las peridotitas de Ronda. Publicaciones Especiales del Boletín Geológico y Minero 98, 124 pp.Google Scholar
Tubía, J. M. & Cuevas, J. 1986. High-temperature emplacement of the Los Reales peridotite nappe (Betic Cordilleras, Spain). Journal of Structural Geology 8, 473–82.CrossRefGoogle Scholar
Tubía, J. M., Cuevas, J. & Gil Ibarguchi, J. I. 1997. Sequential development of the metamorphic aureole beneath the Ronda peridotites and its bearing on the tectonic evolution of the Betic Chain (Spain). Tectonophysics 279, 227–52.CrossRefGoogle Scholar
Supplementary material: PDF

Esteban supplementary material

Appendix.pdf

Download Esteban supplementary material(PDF)
PDF 83.5 KB