Hostname: page-component-848d4c4894-4hhp2 Total loading time: 0 Render date: 2024-05-11T12:45:18.145Z Has data issue: false hasContentIssue false
  • English
  • Français

First geochemical and geochronological characterization of Late Cretaceous mesosilicic magmatism in Gastre, Northern Patagonia, and its tectonic relation to other coeval volcanic rocks in the region

Published online by Cambridge University Press:  25 June 2018

CLAUDIA ZAFFARANA ,
SILVIA LAGORIO ,
DARÍO ORTS ,
ALICIA BUSTEROS ,
DIEGO SILVA NIETO ,
RAÚL GIACOSA ,
VÍCTOR RUIZ GONZÁLEZ ,
BÁRBARA BOLTSHAUSER ,
CARLA PUIGDOMENECH NEGRE  and
RUBÉN SOMOZA
...Show all authors
CLAUDIA ZAFFARANA*
Affiliation:
Universidad Nacional de Río Negro, Sede Alto Valle-Valle Medio. Av. Julio A. Roca 1242 General Roca (8332), Pcia. de Río Negro, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB, Buenos Aires, Argentina
SILVIA LAGORIO
Affiliation:
Servicio Geológico Minero Argentino (SEGEMAR), Av. General Paz 5445, B1650WAB, Buenos Aires, Argentina
DARÍO ORTS
Affiliation:
Universidad Nacional de Río Negro, Sede Alto Valle-Valle Medio. Av. Julio A. Roca 1242 General Roca (8332), Pcia. de Río Negro, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB, Buenos Aires, Argentina
ALICIA BUSTEROS
Affiliation:
Servicio Geológico Minero Argentino (SEGEMAR), Av. General Paz 5445, B1650WAB, Buenos Aires, Argentina
DIEGO SILVA NIETO
Affiliation:
Servicio Geológico Minero Argentino (SEGEMAR), Av. General Paz 5445, B1650WAB, Buenos Aires, Argentina
RAÚL GIACOSA
Affiliation:
Universidad Nacional de Río Negro, Sede Alto Valle-Valle Medio. Av. Julio A. Roca 1242 General Roca (8332), Pcia. de Río Negro, Argentina Servicio Geológico Minero Argentino (SEGEMAR), Av. General Paz 5445, B1650WAB, Buenos Aires, Argentina
VÍCTOR RUIZ GONZÁLEZ
Affiliation:
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB, Buenos Aires, Argentina Departamento de Geología de la FCEyN, Universidad de Buenos Aires, Intendente Güiraldes 2160, Ciudad Universitaria, C1428EGA, Buenos Aires, Argentina
BÁRBARA BOLTSHAUSER
Affiliation:
Universidad Nacional de Río Negro, Sede Alto Valle-Valle Medio. Av. Julio A. Roca 1242 General Roca (8332), Pcia. de Río Negro, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB, Buenos Aires, Argentina
CARLA PUIGDOMENECH NEGRE
Affiliation:
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB, Buenos Aires, Argentina Departamento de Geología de la FCEyN, Universidad de Buenos Aires, Intendente Güiraldes 2160, Ciudad Universitaria, C1428EGA, Buenos Aires, Argentina
RUBÉN SOMOZA
Affiliation:
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB, Buenos Aires, Argentina Departamento de Geología de la FCEyN, Universidad de Buenos Aires, Intendente Güiraldes 2160, Ciudad Universitaria, C1428EGA, Buenos Aires, Argentina
MIGUEL HALLER
Affiliation:
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB, Buenos Aires, Argentina Universidad Nacional de la Patagonia San Juan Bosco, Puerto Madryn, Argentina
*
†Author for correspondence: czaffarana@unrn.edu.ar
Get access Rights & Permissions [Opens in a new window]

Abstract

This work characterizes Late Cretaceous calc-alkaline volcanic rocks in Gastre, Northern Patagonia, Argentina. These newly found porphyritic rocks bear an 40Ar–39Ar amphibole age of ~ 74–76 Ma, a subduction-type geochemical signature and a deep, garnet-bearing source. Extruded in a stage of low magmatic activity in the Northern Patagonian Andes (~ 41–44° S), they could represent an eastward migration of the Late Cretaceous magmatic arc that was associated with a regional compressive deformational stage in the South American margin.

Keywords

subduction magmatismslab shallowingcompressive deformationTres Picos PrietoChile Ridge
Type
Rapid Communication
Information
Geological Magazine , Volume 156 , Issue 7 , July 2019 , pp. 1285 - 1294
Copyright
Copyright © Cambridge University Press 2018 

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

Allard, J. O., Giacosa, R. & Paredes, J. M. 2011. Relaciones estratigráficas entre la Formación los Adobes (Cretácico inferior) y su sustrato Jurásico: implicancias en la evolución tectónica de la cuenca de Cañadón Asfalto, Chubut, Argentina. In XVIII Congreso Geológico Argentino (eds Leanza, H. A., Franchini, M., Impiccini, A., Pettinari, G., Sigismondi, M., Pons, J. & Tunik, M.), pp. 988–9. Neuquén.Google Scholar
Aragón, E., Castro, A., Giacosa, R., Rodríguez, C., D'Eramo, F., Pinotti, L., Díaz-Alvarado, J., Aguilera, Y., Cavarozzi, C., Demartis, M., Hernando, I. R., Fuentes, T. & Ribot, A. 2017. El Batolito Munro: magmatismo post-orogénico paleoceno en el rift de los Patagónides: Patagonia Extrandina. In XX Congreso Geológico Argentino, Simposio 12 (eds Ibañez, L., Grosse, P. & Báez, M.), pp. 13–18. Asociación Geológica Argentina.Google Scholar
Aragón, E., D'Eramo, F. D., Castro, A., Pinotti, L., Brunelli, D., Rabbia, O., Rivalenti, G., Varela, R., Spakman, W., Demartis, M., Cavarozzi, C. E., Aguilera, Y. E., Mazzucchelli, M. & Ribot, A. 2011. Tectono-magmatic response to major convergence changes in the North Patagonian suprasubduction system; the Paleogene subduction – transcurrent plate margin transition. Tectonophysics 509, 218–37.CrossRefGoogle Scholar
Aragón, E. & Mazzoni, M. 1997. Geología y estratigrafía del complejo volcánico piroclástico del río Chubut medio (Eoceno), Chubut. Argentina. Revista de la Asociación Geológica Argentina 52, 243–56.Google Scholar
Aragón, E., Pinotti, L., Eramo, F. D., Castro, A., Rabbia, O., Coniglio, J., Demartis, M., Hernando, I., Cavarozzi, C. E. & Aguilera, Y. E. 2013. The Farallon-Aluk ridge collision with South America: implications for the geochemical changes of slab window magmas from fore- to back-arc. Geoscience Frontiers 4, 377–88.CrossRefGoogle Scholar
Bouhier, V. E., Franchini, M. B., Caffe, P. J., Maydagán, L., Rapela, C. W. & Paolini, M. 2017. Petrogenesis of volcanic rocks that host the world-class Ag–Pb Navidad District, North Patagonian Massif: comparison with the Jurassic Chon Aike Volcanic Province of Patagonia, Argentina. Journal of Volcanology and Geothermal Research 338, 101–20.CrossRefGoogle Scholar
Cande, S. & Leslie, R. 1986. Late Cenozoic tectonics of the southern Chile Trench. Journal of Geophysical Research 91 (B1), 471–96.CrossRefGoogle Scholar
Castro, A., Moreno-Ventas, I., Fernández, C., Vujovich, G., Gallastegui, G., Heredia, N., Martino, R. D., Becchio, R., Corretgé, L. G., Díaz-Alvarado, J., Such, P., García-Arias, M., & Liu, D. 2011. Petrology and SHRIMP U–Pb zircon geochronology of Cordilleran granitoids of the Bariloche area, Argentina. Journal of South American Earth Sciences 32, 508–30.CrossRefGoogle Scholar
Conrad, C. P., Wu, B., Smith, E. I., Bianco, T. A. & Tibbetts, A. 2010. Shear-driven upwelling induced by lateral viscosity variations and asthenospheric shear: a mechanism for intraplate volcanism. Physics of the Earth and Planetary Interior 178, 162–75.CrossRefGoogle Scholar
Demant, A., Suárez, M. & De La Cruz, R. 2007. Geochronology and petrochemistry of Late Cretaceous– (?) Paleogene volcanic sequences from the eastern central Patagonian Cordillera (45°–45° 40′ S). Revista Geológica de Chile 34, 3–21.CrossRefGoogle Scholar
Echaurren, A., Folguera, A., Gianni, G., Orts, D., Tassara, A., Encinas, A., Giménez, M. & Valencia, V. 2016. Tectonic evolution of the North Patagonian Andes (41°–44° S) through recognition of syntectonic strata. Tectonophysics 677, 99–114.CrossRefGoogle Scholar
Echaurren, A., Oliveros, V., Folguera, A., Ibarra, F., Creixell, C. & Lucassen, F. 2017. Early Andean tectonomagmatic stages in north Patagonia: insights from field and geochemical data. Journal of the Geological Society, London 174, 405–21.CrossRefGoogle Scholar
Espinoza, F., Morata, D., Polvé, M., Bellen, H., Cotten, J., De La Cruz, R. & Guivel, C. 2005. Petrogenesis in Meseta Chile Chico, southern Patagonia, Chile: evidence for the participation of two slab windows. Lithos 85, 315–43.CrossRefGoogle Scholar
Folguera, A. & Ramos, V. A. 2011. Repeated eastward shifts of arc magmatism in the Southern Andes: a revision to the long-term pattern of Andean uplift and magmatism. Journal of South American Earth Sciences 32, 531–46.CrossRefGoogle Scholar
Franchi, M. R. & Page, R. F. N. 1980. Los basaltos cretácicos y la evolución magmática del Chubut occidental. Revista de la Asociación Geológica Argentina 35 (2), 208–29.Google Scholar
García Morabito, E. & Ramos, V. A. 2012. Andean evolution of the Aluminé fold and thrust belt, Northern Patagonian Andes (38° 30′–40° 30′ S). Journal of South American Earth Sciences 38, 13–30.CrossRefGoogle Scholar
Gianni, G., Navarrete, C., Orts, D., Tobal, J., Folguera, A. & Giménez, M. 2015. Patagonian broken foreland and related synorogenic rifting: the origin of the Chubut Group Basin. Tectonophysics 649, 81–99.CrossRefGoogle Scholar
Iannelli, S. B., Litvak, V. D., Fernández Paz, L., Folguera, A., Ramos, M. E. & Ramos, V. A. 2017. Evolution of Eocene to Oligocene arc-related volcanism in the North Patagonian Andes (39–41° S), prior to the break-up of the Farallon plate. Tectonophysics 696–697, 70–87.CrossRefGoogle Scholar
Karlstrom, L., Lee, C. T. A. & Manga, M. 2014. The role of magmatically driven lithospheric thickening on arc front migration. Geochemistry, Geophysics, Geosystems, 15, 2655–75.CrossRefGoogle Scholar
Le Bas, M. J., Lemaître, R. W., Streckeisen, A. & Zanettin, B. 1986. A chemical classification of volcanic rocks based on the total alkali-silica diagram. Journal of Petrology 27, 745–50.CrossRefGoogle Scholar
McDonough, W. F. & Sun, S. S. 1995. The composition of the Earth. Chemical Geology 120, 223–53.CrossRefGoogle Scholar
Page, R. & Page, S. 1993. Petrología y significado tectónico del Jurásico volcánico del Chubut Central. Revista de la Asociacion Geologica Argentina 48, 41–58.Google Scholar
Pankhurst, R. J., Weaver, S. D., Hervé, F. & Larrondo, P. 1999. Mesozoic–Cenozoic evolution of the North Patagonian batholith in Aysen, southern Chile. Journal of the Geological Society, London 156, 673–94.CrossRefGoogle Scholar
Ramos, V. A. & Kay, S. M. 1992. Southern Patagonian plateau basalts and deformation: backarc testimony of ridge collisions. Tectonophysics 205, 261–82.CrossRefGoogle Scholar
Rapela, C. W., Spalletti, L. A., Merodio, J. C. & Aragón, E. 1988. Temporal evolution and spatial variation of early Tertiary volcanism in the Patagonian Andes (40° S–42° 30′ S). Journal of South American Earth Sciences 1, 75–88.CrossRefGoogle Scholar
Rolando, A. P., Hartmann, L. A., Santos, J. O. S., Fernandez, R. R. & Etcheverry, R. O. 2002. SHRIMP zircon U ± Pb evidence for extended Mesozoic magmatism in the Patagonian Batholith and assimilation of Archean crustal components. Journal of South American Earth Sciences 15, 267–83.CrossRefGoogle Scholar
Savignano, E., Mazzoli, S., Arce, M., Franchini, M., Gautheron, C., Paolini, M. & Zattin, M. 2016. (Un)coupled thrust belt-foreland deformation in the northern Patagonian Andes: new insights from the Esquel-Gastre sector (41° 30′–43° S). Tectonics 35, 2636–56.CrossRefGoogle Scholar
Schellart, W. P., Freeman, J., Stegman, D. R., Moresi, L. & May, D. 2007. Evolution and diversity of subduction zones controlled by slab width. Nature 446, 308–11.CrossRefGoogle ScholarPubMed
Seton, M., Müller, R. D., Zahirovic, S., Gaina, C., Torsvik, T., Shephard, G., Talsma, A., Gurnis, M, Turner, M, Maus, S. & Chandler, M. 2012. Global continental and ocean basin reconstructions since 200 Ma. Earth-Science Reviews 113, 212–70.CrossRefGoogle Scholar
Somoza, R. & Zaffarana, C. B. 2008. Mid-Cretaceous polar standstill of South America, motion of the Atlantic hotspots and the birth of the Andean cordillera. Earth and Planetary Science Letters 271, 267–77.CrossRefGoogle Scholar
Spagnuolo, M. G., Folguera, A., Litvak, V., Vera, E. A. R. & Ramos, V. A. 2012. Late Cretaceous arc rocks in the Andean retroarc region at 36.5° S: evidence supporting a Late Cretaceous slab shallowing. Journal of South American Earth Sciences 38, 44–56.CrossRefGoogle Scholar
Stern, C. R. 2004. Active Andean volcanism: its geologic and tectonic setting. Revista Geológica de Chile 31, 161–206.CrossRefGoogle Scholar
Suárez, M., De La Cruz, R., Bell, M. & Demant, A. 2010. Cretaceous slab segmentation in southwestern Gondwana. Geological Magazine 147, 193–205.CrossRefGoogle Scholar
Sun, S. S. & McDonough, W. F. 1989. Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. In Magmatism in the Ocean Basins (eds Saunders, A. D. & Norry, M. J.), pp. 313–45. Geological Society of London, Special Publication no. 42.Google Scholar
Whitney, D. L. & Evans, B. W. 2010. Abbreviations for names of rock-forming minerals. American Mineralogist 95: 185–7.CrossRefGoogle Scholar
Winchester, J. A. & Floyd, P. A. 1977. Geochemical discrimination of different magma series and their differentiation products using immobile elements. Chemical Geology 20, 325–43.CrossRefGoogle Scholar
Zaffarana, C. B., Lagorio, S. L. & Somoza, R. 2012. Paleomagnetism and geochemistry from the Upper Cretaceous Tres Picos Prieto locality (43° S), Patagonian Plateau Basalts. Andean Geology 39, 53–66.CrossRefGoogle Scholar
Zaffarana, C. B. & Somoza, R. 2012. Paleomagnetism and 40Ar–39Ar dating from Lower Jurassic rocks in Gastre, central Patagonia: further data to explore tectonomagmatic events associated to Gondwana breakup. Journal of the Geological Society, London 169, 371–9.CrossRefGoogle Scholar
Supplementary material: File

Zaffarana et al. supplementary material 1

Supplementary Table

Download Zaffarana et al. supplementary material 1(File)
File 19.3 KB
Supplementary material: File

Zaffarana et al. supplementary material 1

Supplementary Table

Download Zaffarana et al. supplementary material 1(File)
File 15.9 KB