Crustal attenuation in the Southern Andean retroarc (38°-39°30′ S) determined from tectonic and gravimetric studies: The Lonco-Luán asthenospheric anomaly

The western retroarc of the Southern Andes between 38° and 40° S is formed by a NNW-elongated ridge not associated with stacked thrust sheets. On the contrary, during the last 4-3 Ma this ridge was affected by extensional deformation, regional uplift and related folding on a very broad scale. Receiv...

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Autor principal: Folguera, A.
Otros Autores: Introcaso, Antonio, Giménez, M., Ruiz, F., Martinez, P., Tunstall, C., García Morabito, E., Ramos, V.A
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2007
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100 1 |a Folguera, A. 
245 1 0 |a Crustal attenuation in the Southern Andean retroarc (38°-39°30′ S) determined from tectonic and gravimetric studies: The Lonco-Luán asthenospheric anomaly 
260 |c 2007 
270 1 0 |m Folguera, A.; Laboratorio de Tectónica Andina, Universidad de Buenos Aires, CONICET, Buenos Aires, Argentina; email: andresfolguera2@yahoo.com.ar 
504 |a Araneda, M., Asch, G., Bataylle, K., A crustal model along 39°S from a seismic refraction profile. ISSA 2000 (2003) Revista Geológica de Chile, 30 (1), pp. 83-101 
504 |a Astini, R., Ramos, V.A., Benedetto, J.L., Vaccari, N.E., La Precordillera: un terreno exótico a Gondwana (1996) Actas, V, pp. 293-324. , XIII° Congreso Geológico Argentino and III° Congreso Exploración de Hidrocarburos 
504 |a Basei, M.A.S., Brito Neves, B.B., Varela, R., Teixeira, W., Siga Jr., O., Sato, A.M., Cingolani, C., Isotopic dating on the crystalline basement rocks of the Bariloche region, Río Negro, Argentina (1999) Anales Segemar, 34, pp. 15-18. , II° South American Symposium on Isotope Geology 
504 |a Bettini, F.H., Pautas sobre la cronología estructural en el área del cerro Lotena, cerro Granito y su implicancia en el significado de la dorsal del Neuquén, Provincia de Neuquén (1984) Actas, III, pp. 342-362. , IX° Congreso Geológico Argentino 
504 |a Blakely, R.J., (1995) Potential Theory in Gravity and Magnetic Applications, , Cambridge University Press 
504 |a Brasse, H., Soyer, W., A magnetoteluric study in the Southern Chilean Andes (2001) Geophysical Research Letters, 28 (19), pp. 3757-3760 
504 |a Briggs, J., Machine contouring using minimum curvature (1974) Geophysics, 39, pp. 39-48 
504 |a Burckhardt, C., Profils géologiques transversaux de la Cordillère Argentino-Chilienne (1900) Museo de La Plata, Anales, Sección Geología y Mineralógica, 2, pp. 1-136 
504 |a Chernicoff, C.J., Zappetini, E.O., Delimitación de los terrenos tectono-estratigráficos de la región centro-austral Argentina: evidencias aeromagnéticas (2003) Revista Geológica de Chile, 30 (2), pp. 299-316 
504 |a Chernicoff, J., Zapettini, E., Geophysical evidence for terrane boundaries in South-Central Argentina (2004) Gondwana Research, 7 (4), pp. 1105-1117 
504 |a De Ferraris, C., Edad del Arco o Dorsal Antigua del Neuquén Oriental de acuerdo con la estratigrafía de la zona inmediata (1947) Revista de la Sociedad Geológica Argentina, 2 (3), pp. 256-283 
504 |a Diez Rodríguez, A., Introcaso, A., Perfil transcontinental sudamericano en el paralelo 39°S (1986) Geoacta, 13 (2), pp. 179-201 
504 |a Folguera, A., Ramos, V.A., Hermanns, R.L., Naranjo, J., Neotectonics in the foothills of the southernmost central Andes (37°-38°S): evidence of strike-slip displacement along the Antiñir-Copahue fault zone (2004) Tectonics, 23, pp. TC5008. , 10.1029/2003TC001533 
504 |a Folguera, A., Zapata, T., Ramos, V.A., Late Cenozoic Extension and the evolution of the Neuquén Andes (2006) Geological Society of America, Special Paper, 407, pp. 267-285. , Late Cretaceous to Recent Magmatism and Tectonism of the Southern Andean Margin at the Latitude of the Neuquen Basin (36-39°S). Kay S.M., and Ramos V.A. (Eds) 
504 |a Folguera, A., Ramos, V.A., González Díaz, E., Hermanns, R., Miocene to Quaternary deformation of the Guañacos fold-and-thrust belt in the Neuquén Andes between 37° and 37°30′ S (2006) Geological Society of America, Special Paper, 407, pp. 247-266. , Late Cretaceous to Recent Magmatism and Tectonism of the Southern Andean Margin at the Latitude of the Neuquen Basin (36-39° S). Kay S.M., and Ramos V.A. (Eds) 
504 |a Franzese, J., Spalletti, L., Late Triassic-early Jurassic continental extension in southwestern Gondwana: tectonic segmentation and pre-break-up rifting (2001) Journal of South American Earth Sciences, 14, pp. 257-270 
504 |a García Morabito, E., Folguera, A., El alto de Copahue-Pino Hachado y la fosa de Loncopué: un comportamiento tectónico episódico, Andes neuquinos (37°-39°S) (2005) Revista de la Asociación Geológica Argentina, 60 (4), pp. 742-761 
504 |a García Morabito, E., Folguera, A., Melnick, D., Ramos, V., Variabilidad en la actividad del retroarco andino entre 37 y 39°S (2003) X° Congreso Geológico de Chile, , Electronic Files 
504 |a Grow, J.A., Bowin, C.O., Evidence for high density crust and mantle beneath the Chile trench due to the descending lithosphere (1975) Journal of Geophysical Research, 80, pp. 1449-1458 
504 |a Hackney, R., Echtler, H., Franz, G., Götze, H.-J., Lucassen, F., Marchenko, D., Melnick, D., Wienecke, S., The segmented overriding plate and coupling at the south-central Chile margin (2006) The Andes - Active Subduction Orogeny, Frontiers in Earth Sciences, 1, pp. 351-370. , Oncken G., Chong G., Franz P., Giese H.-J., Götze V., Ramos M., and Wigger P. (Eds), Springer Verlag 
504 |a Introcaso, A., Pacino, M.C., Gravity Andean model associated with subduction near 24°25′ South latitude (1988) Revista Geofísica (Madrid), 44, pp. 29-44 
504 |a Introcaso, A., Pacino, M.C., Fraga, H., Gravity, isostasy and Andean crustal shortening between 30° and 35°S latitude (1992) Tectonophysics (Amsterdam), 205 (1-3), pp. 31-48 
504 |a Introcaso, A., Pacino, M., Guspi, F., A gravity chart to quickly evaluate the probable contribution of the lithosphere heating to the isostatic balance of the Central Andes (1997) Bolletin Di Geofisica Teorica ed Applicata, 38 (N1-2), pp. 41-54 
504 |a Isacks, B., Uplift of the Central Andean Plateau and Bending of the Bolivian Orocline (1988) Journal of Geophysical Research, 93 (B4), pp. 3211-3231 
504 |a Jordan, T., Burns, W., Veiga, R., Pángaro, F., Copeland, P., Kelley, S., Mpodozis, C., Extension and basin formation in the Southern Andes caused by increased convergence rate: a Mid-Cenozoic trigger for the Andes (2001) Tectonics, 20, pp. 308-324 
504 |a Kay, S.M., Tertiary to Recent transient shallow subduction zones in the Central and Southern Andes (2002) Actas, III, pp. 282-283. , XV° Congreso Geológico Argentino 
504 |a Kay, S.M., Burns, M., Copeland, P., Upper Cretaceous to Holocene Magmatism over the Neuquén Basin: evidence for transient shallowing of the subduction zone under the Neuquén Andes (36°S to 38°S latitude) (2006) Geological Society of America, Special Paper, 407, pp. 19-60. , Late Cretaceous to Recent Magmatism and Tectonism of the Southern Andean Margin at the Latitude of the Neuquen Basin (36-39°S). Kay S.M., and Ramos V.A. (Eds) 
504 |a Kostadinoff, J., Font de Affolter, G., Cuenca interserrana bonaerense, Argentina (1982) Actas, IV, pp. 105-121. , V° Congreso Latinoamericano de Geología 
504 |a Kostadinoff, J., Gregori, D., Raniolo, A., Configuración geofísica-geológica del sector norte de la Provincia de Río Negro (2005) Revista de la Asociación Geológica Argentina, 60 (2), pp. 368-376 
504 |a Lara, L., Rodríguez, C., Moreno, H., Pérez de Arce, H., Geocronología K-Ar y geoquímica del volcanismo plioceno superior-pleistoceno de los Andes del sur (39°-42°S) (2001) Revista Geológica de Chile, 28 (1), pp. 67-90 
504 |a Lara, L., Folguera, A., Plio-Quaternary narrowing of the volcanic arc at Southern Andes (37°-41°S), southwestern margin of Neuquén Basin: geochronologic and field tectonic data evaluated (2006) Geological Society of America, Special Paper, 407, pp. 299-315. , Late Cretaceous to Recent Magmatism and Tectonism of the Southern Andean Margin at the Latitude of the Neuquen Basin (36-39°S). Kay S.M., and Ramos V.A. (Eds) 
504 |a Lüth, S., Wigger, P., A crustal model along 39°S from a seismic refraction profile-ISSA 2000 (2003) Revista Geológica de Chile, 30 (1), pp. 83-101 
504 |a Melnick, D., Folguera, A., Rosenau, M., Echtler, H., Potent, S., Tectonics from the Northern Segment of the Liquiñe-Ofqui fault system (37°-39°S), Patagonian Andes (2002) V International Symposium of Andean Geodynamics, Abstracts, pp. 413-416 
504 |a Melnick, D., Folguera, A., Hechtler, H., Charlet, F., Buttner, O., DeBatist, M., The Lago del Laja fault system: active intraarc orogenic collapse in the Southern Central Andes (37°15′ S) (2003) X° Congreso Geológico de Chile, , Electronic Files 
504 |a Melnick, D., Rosenau, M., Folguera, A., Echtler, H., Neogene Tectonics of the Western flank of the Neuquén Andes, 37°-39°30′ S (2006) Geological Society of America, Special Paper, 407, pp. 73-95. , Late Cretaceous to Recent Magmatism and Tectonism of the Southern Andean Margin at the Latitude of the Neuquen Basin (36-39°S). Kay S.M., and Ramos V.A. (Eds) 
504 |a Mosquera, A., Ramos, V.A., Intraplate deformation in the Neuquen Embayment (2006) Geological Society of America, Special Paper, 407, pp. 97-123. , Evolution of An Andean Margin: Tectonic and Magmatic View from the Andes to the Neuquén Basin (35°-39°S). Kay S.M., and Ramos V.A. (Eds) 
504 |a Muñoz, J., Stern, C., The Quaternary volcanic belt of the Southern continental margin of South America: transverse structural and petrochemical variations across the segment between 38°S and 39°S (1988) Journal of South American Earth Sciences, 1, pp. 147-162 
504 |a Muñoz Bravo, J., Stern, C., Bermúdez, A., Delpino, D., Dobbs, M.F., Frey, F.A., El volcanismo plio-cuaternario a través de los 38° y 39°S de los Andes (1989) Revista de la Asociación Geológica Argentina, 44, pp. 270-286 
504 |a Pacino, M., The Andean elevation in Argentina-Chile at 39°S from gravity data (1997) Geoacta, 22, pp. 91-102 
504 |a Pesce, A., Evolución volcano-tectónica del complejo efusivo Copahue-Caviahue y su modelo geotérmico preliminar (1989) Revista de la Asociación Geológica Argentina, 44 (1-4), pp. 307-327 
504 |a Ploszkiewicz, J.V., Orchuela, I.A., Vaillard, J.C., Viñes, R.F., Compresión y desplazamiento lateral en la zona de Falla Huincul: estructuras asociadas, provincia del Neuquén (1984) Actas, II, pp. 163-169. , IX° Congreso Geológico Argentino 
504 |a Ramos, V.A., Estructura (1977) Geología y Recursos Naturales de la Provincia del Neuquén. VII° Congreso Geológico Argentino, Relatorio, 1, pp. 9-24. , Rolleri E.O. (Ed) 
504 |a Ramos, V.A., Patagonia: ¿Un continente paleozoico a la deriva? (1984) Actas, II, pp. 311-325. , IX° Congreso Geológico Argentino 
504 |a Ramos, V.A., The birth of Southern South America (1989) American Scientist, 77, pp. 444-450 
504 |a Ramos, V.A., Evolución tectónica de la plataforma continental (1996) Geología y Recursos Naturales de la Plataforma Continental Argentina, pp. 385-404. , Ramos V.A., and Turic M.A. (Eds), Asociación Geólogica Argentina e Instituto Argentino del Petróleo, Buenos Aires 
504 |a Ramos, V.A., Estructura del sector occidental de la faja plegada y corrida del Agrio, Cuenca Neuquina, Argentina (1998) Actas, II, pp. 105-110. , IX° Congreso Latinoamericano de Geología 
504 |a Ramos, V.A., Cuyania, an exotic block to Gondwana: review of a historical success and the present problems (2004) Gondwana Research, 7 (4), pp. 1009-1026 
504 |a Ramos, V.A., Folguera, A., The Andes of Neuquen (36°S-38°S): Evidence of Cenozoic transtension along the arc (1999) IV Geodynamic Symposium, Actas, pp. 606-609 
504 |a Ramos, V.A., Folguera, A., Tectonic evolution of the Andes of Neuquén: constraints derived from the magmatic arc and foreland deformation (2006) Geological Society, London, Special Publications, 252, pp. 15-35. , The Neuquén Basin: a Case Study in Sequence Stratigraphy and Basin Dynamics. Veiga G.D., Spalletti L., Howell J.A., and Schwarz E. (Eds) 
504 |a Ramos, V.A., Jordan, T.E., Allmendinger, R.W., Kay, S.M., Cortés, J.M., Palma, M.A., Chilenia: Un terreno alóctono en la evolución paleozoica de los Andes Centrales (1984) Actas, II, pp. 84-106. , IX° Congreso Geológico Argentino 
504 |a Silver, P., Russo, R., Lithgow-Bertelloni, C., Coupling of South American and African plate motion and plate deformation (1998) Science, 279 (5347), pp. 60-63. , 10.1126/science.279.5347.60 
504 |a Tassara, A., Swain, C., Hackney, R., Kirby, J., Elastic thickness structure of South America estimated using wavelets and satellite-derived gravity data (2007) Earth and Planetary Science Letters, 253, pp. 17-36 
504 |a Tunstall, C., Geología de la caldera de Pino Hachado (2005) Trabajo Final de Licenciatura, , Universidad de Buenos Aires (inédito), Buenos Aires 70 pp 
504 |a Tunstall, C., Folguera, A., Control estructural me el desarrollo de una concentración anómala de calderas en los Andes de Neuquén: Complejo Volcánico Pino Hachado (38°30′ S-71°O) (2005) Revista de la Asociación Geológica Argentina, 60 (4), pp. 731-741 
504 |a Tunstall, C., Folguera, A., Ramos, V.A., Retroarc extensión associated with reactivation of basement structures and retroarc volcanism (38°30′ S-71° W) (2006) Abstract Programs, 68. , Backbone of the Americas. Patagonia to Alaska. 3-6 abril. Geological Society of America and Co-convened by Asociación Geológica Argentina 
504 |a Varela, R., Basei, M.A.S., Brito Neves, B.B., Sato, A.M., Teixeira, W., Cingolani, C.A., Siga Jr., O., Isotopic study of igneous and metamorphic rocks of Comallo-Paso Flores, Río Negro, Argentina (1999) Anales Segemar, 34, pp. 148-151. , II South American Symposium on Isotope Geology 
504 |a Vergani, G., Tankard, A.J., Belotti, H.J., Welsnik, H.J., Tectonic evolution and Paleogeography of the Neuquén Basin (1995) AAPG Memoir, Tulsa, 62, pp. 383-402. , Petroleum Basins of South America. Tankard A.J., Suárez S.R., and Welsnik H.J. (Eds) 
504 |a Von Gosen, W., Thrust tectonics in the North Patagonian Massif (Argentina): implications for a Patagonia plate (2003) Tectonics, 22 (1), p. 1005. , 10.1029/2001ITC901039 
504 |a Yuan, X., Asch, G., Bataile, K., Bohm, M., Echtler, H., Kind, R., Onchen, O., Wölbern, I., Deep seismic images of the Southern Andes (2006) Geological Society of America, Special Paper, 407, pp. 61-72. , Late Cretaceous to Recent Magmatism and Tectonism of the Southern Andean Margin at the Latitude of the Neuquen Basin (36-39°S). Kay S.M., and Ramos V.A. (Eds) 
504 |a Zambrano, J., Cuencas sedimentarias en el subsuelo de la Provincia de Buenos Aires y zonas adyacentes (1969) Revista de la Asociación Geológica Argentina, 29 (4), pp. 443-469 
504 |a Zapata, T.R., Folguera, A., Tectonic evolution of the Andean Fold and Thrust Belt, south of the Barrancas River, Neuquén Basin, Argentina (2005) Geological Society, London, Special Publications, 252, pp. 37-56. , The Neuquén Basin: A Case Study in Sequence Stratigraphy and Basin Dynamics. Veiga G.D., Spalletti L., Howell J.A., and Schwarz E. (Eds) 
504 |a Zapata, T., Brissón, I., Dzelalija, F., The role of basement in the Andean fold and thrust belt of the Neuquén Basin (1999) Thrust Tectonics, Proceedings, pp. 122-124 
506 |2 openaire  |e Política editorial 
520 3 |a The western retroarc of the Southern Andes between 38° and 40° S is formed by a NNW-elongated ridge not associated with stacked thrust sheets. On the contrary, during the last 4-3 Ma this ridge was affected by extensional deformation, regional uplift and related folding on a very broad scale. Receiver function analysis shows that the drainage divide area and adjacent retroarc lie over an attenuated crust. Expected crustal thickness at these latitudes is around 38 km, whereas in this part of the retroarc the thickness is less than 32 km. The causes for such attenuation have been linked to a moderate steepening of the subducted Nazca plate beneath the South American plate, which is suggested by a westward shift and narrowing of the magmatic arc during the last 4 to 5 Ma. Gravimetric studies show that the upper plate did not react homogeneously to slab steepening, but ancient sutures and lithospheric discontinuities deeply buried under Mesozoic to Cenozoic sequences in the retroarc were locally reactivated. These processes resulted in an asthenospheric anomaly that correlates at the surface with the area of Pliocene to Quaternary doming, widespread extension and three radial troughs. Two of the troughs have accommodated substantial amounts of extension, but the third was probably aborted at an early stage. Moreover, the presence of an anomalous concentration of calderas and large volcanic centers over the proposed asthenospheric anomaly, and their age distribution, may indicate minor migration of the asthenospheric anomaly between 4 and 2 Ma through the western South American plate. © 2007 Elsevier B.V. All rights reserved.  |l eng 
593 |a Laboratorio de Tectónica Andina, Universidad de Buenos Aires, CONICET, Buenos Aires, Argentina 
593 |a Instituto de Física de Rosario, Facultad de Ciencias Exactas, Ingeniería y Agrimensura, Universidad Nacional de Rosario, Argentina 
593 |a Instituto Geofísico Sismológico Ing. F. S. Volponi, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de San Juan, Argentina 
651 4 |a SOUTH AMERICA 
690 1 0 |a ANDEAN GRAVITY 
690 1 0 |a ASTHENOSPHERIC ANOMALIES 
690 1 0 |a RETROARC EXTENSION 
690 1 0 |a RETROARC VOLCANISM 
690 1 0 |a THERMAL UPLIFT 
690 1 0 |a ASTHENOSPHERE 
690 1 0 |a CENOZOIC 
690 1 0 |a CRUSTAL STRUCTURE 
690 1 0 |a CRUSTAL THICKNESS 
690 1 0 |a DEFORMATION 
690 1 0 |a EXTENSIONAL TECTONICS 
690 1 0 |a FOLDING 
690 1 0 |a GRAVIMETRY 
690 1 0 |a MESOZOIC 
690 1 0 |a NAZCA PLATE 
690 1 0 |a SLAB 
690 1 0 |a TECTONIC PLATE 
690 1 0 |a THRUST 
690 1 0 |a UPLIFT 
690 1 0 |a INDICATOR MINOR 
700 1 |a Introcaso, Antonio 
700 1 |a Giménez, M. 
700 1 |a Ruiz, F. 
700 1 |a Martinez, P. 
700 1 |a Tunstall, C. 
700 1 |a García Morabito, E. 
700 1 |a Ramos, V.A. 
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