Artículo

Este artículo es de Acceso Abierto y puede ser descargado en su versión final desde nuestro repositorio
Consulte la política de Acceso Abierto del editor

Abstract:

A paleomagnetic study, carried out on 9 sites of the La Flecha Formation (facies Los Sapitos, Upper Cambrian, Marjuman-Steptoean) exposed along the la Angostura creek, Precordillera of La Rioja (29.5°S, 68.7°W), permitted to determine two magnetic components. One is postectonic and of low coercivities and unblocking temperatures (A, Dec: 7.5°, Inc: -40.3°, a95: 10.1°, N: 6), being interpreted as a recent remanence of probable viscous origin. A second, pretectonic, component was isolated in seven sites with opposite polarities and is likely carried by magnetite (B, Dec: 206.9°, Inc: 63.3°, a95: 12.8°, N: 7). The paleomagnetic pole position for this component (Lat: 63.8°S, Long: 244.6°E, dp: 15.9°, dm: 20.2°) suggests that the remanence was acquired by the end of the Permian and it is interpreted as produced by the regional remagnetization associated with the San Rafael orogenic phase found in other units of the Precordillera. An analysis of pole positions, type of magnetizations, polarities and geographic distribution of the remagnetized units suggests a pattern of time-space migration of the remagnetization from west to east, between the Early Permian and the Permian-Triassic. This pattern is consistent with a model of remagnetization by migration of fluids expelled from the orogenic area that reached rocks not involved directly in the deformation. The pole position obtained for La Flecha Formation also suggests the lack of major tectonic rotations in the study area since the Permian. © 2005 Asociación Geológica Argentina.

Registro:

Documento: Artículo
Título:The sanrafaelic remagnetization of precordillera in the permian: New evidence
Autor:Rapalini, A.E.; Astini, R.A.
Filiación:Instituto de Geofísica Daniel Valencio (INGEODAV), Departamento de Ciencias Geológicas, Ciudad Universitaria, 1428, Buenos Aires, Argentina
Cátedra de Estratigrafia y Geología Histórica, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Av. Velez Sarsfield 299, 5000, Córdoba, Argentina
Palabras clave:Cambrian; Carbonates; Paleomagnetism; Precordillera; San rafael; Cambrian; carbonate; formation mechanism; geographical distribution; magnetite; orogeny; paleomagnetism; Permian; Permian-Triassic boundary; remagnetization; tectonic rotation; Argentina; La Rioja [Argentina]; Mendoza; Precordillera; San Rafael Massif; South America; Angostura
Año:2005
Volumen:60
Número:2
Página de inicio:290
Página de fin:300
Título revista:Revista de la Asociacion Geologica Argentina
Título revista abreviado:Rev. Asoc. Geol. Argent.
ISSN:00044822
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00044822_v60_n2_p290_Rapalini.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v60_n2_p290_Rapalini

Referencias:

  • Aceñolaza, F.G., Miller, H., Toselli, A.J., Proterozoic-Early Paleozoic evolution in western South America-a discussion (2002) Tectonophysics, 354, pp. 121-137
  • Astini, R.A., Stratigraphie evidence supporting the rifting, drifting and collision of the Laurentian Precordillera terrane of western Argentina (1998) The Proto-Andean Margin of Gondwana, 142, pp. 11-33. , Pankhurst, R.J. and Rapela, C.W, eds, Geological Society of London Special Publication
  • Astini, R.A., Vaccari, N.B., Sucesión evaporítica del Cámbrico Inferior de la Precordillera: Significado geológico (1996) Revista de la Asociación Geológica Argentina, 51, pp. 97-106
  • Astini, R.A., Rapalini, A.E., (2003) Discussion to Proterozoic - Early Paleozoic evolution in western South America - a, 366, pp. 143-148. , discussion. Tectonophysics
  • Astini, R.A., Benedetto, J.L., Vaccari, N.B., The early Paleozoic evolution of the Argentine Precordillera as a Laurentian rifted, drifted and collided terrane: A geodynamic model (1995) Geological Society of America Bulletin, 107, pp. 253-273
  • Azcuy, C.L., Caminos, R., Diastrofismo (1987) El Sistema Carbonifero en la República, pp. 239-252. , Argentina, Ed. S. Archangelsky, Academia Nacional de Ciencias, Córdoba
  • Baldis, B., Peralta, S., Villegas, C., Esquematizaciones de una posible transcurrencia del Terrane Precordillera (1989) Proyecto IGCP 270, Correlación Geológica, 5, pp. 81-100. , Tucumán
  • Baldis, B.A., Bordonaro, O., Beresi, M., Uliarte, E., Zona de dispersión estromatolítica en la secuencia calcáreo dolomítica del Paleozoico Inferior de San Juan (1981) Actas 8° Congreso Geológico, 2, pp. 419-434. , Argentino
  • Benedetto, J.L., La hipótesis de la aloctonía de la Precordillera Argentina: Un test estratigráfico y biogeográfico (1993) Actas 12° Congreso Geológico, 3, pp. 375-384. , Argentino
  • Benedetto, J.L., 1998. Early Palaeozoic brachiopods and associated shelly faunas from western Gondwana: their bearing on the geodynamic history of the pre-Andean margin. En.- Pankhurst, R.J. y Rapela, C.W. (eds.) The Proto-Andean Margin of Gondwana. Geological Society of London Special Publication 142: 57-83; Bobbio, M.L., Rapalini, A.E., Vilas, J.F., Estudio paleomagnético preliminar de la Formación Hoyada Verde, Precordillera de San Juan: Un ejemplo de remagnetización sintectónica (1990) Revista Geológica de Chile, 17 (2), pp. 191-200
  • Bowring, S.A., Erwin, D.H., A new look at evolutionary rates in deep time: Uniting paleontology and high-precision geochronology (1998) GSA Today, 8 (9), pp. 1-8
  • Buggisch, W., Bachtadse, V., Von Gosen, W., The Middle Carboniferous glaciation of the Argentine Pecordillera (San Juan - Mendoza) - new data to basin evolution and palaeomagnetism (1993) Zbl. Geol. Palaont, H 1 2 (TEIL I), pp. 287-307
  • Butler, R.F., (1992) Paleomagnetism: Magnetic domains to geologic terranes, , Blackwell Scientific Publications, Boston, 319 p
  • Caminos, R. y Azcuy, C.L., 1996. Tectonismo y diastrofismo. 3. Fases diastróficas neopaleozoicas. En Archangelsky, S. (Ed.), El sistema Pérmico en la Rep. Argentina y en la Rep. Oriental del Uruguay. Academia Nacional de Ciencias, 265-274, Córdoba; Cañas, F.L., Análisis de las facies carbonáticas de la Formación Los Sapitos (Cámbrico?- Tremadociano) en la quebrada del Río Guancacol, La Rioja (1986) Actas Primeras Jornadas sobre Geología de la Precordillera, pp. 271-276. , San Juan
  • Cañas, F.L., Facies perimareales del Cámbrico inferiro en el área de Guandacol (La Rioja) (1988) Actas 2° Reunion Argentina de Sedimentologia, pp. 46-50
  • Cañas, F.L., Biolititos microbianos (microbialitos) del Cámbrico tardío, Formación Los Sapitos, Precordillera de La Rioja (1990) Actas de la 3° Reunion Argentina de Sedimentología, pp. 81-86. , San Juan
  • Cañas, F.L., Early Ordovician carbonate platform facies of the Argentine Precordillera; restricted shelf to open platform evolution (1995) Ordovician Odyssey, 77, pp. 221-224. , Cooper, J.D, Droser, M.L. y Finney, S.C, eds, The Pacific Section Society for Sedimentary Geology, Book
  • Cañas, F.L., Facies and sequences of the Late Cambrian-Early Ordovician carbonates of the Argentine Precordillera: A stratigraphic comparison with Laurentian platforms (1999) Laurentia-Gondwana connections before Pangea, pp. 43-62. , Ramos, V.A. y Keppie, D, eds, Geological Society of America Special Paper 336
  • Cortés, J.M., Kleiman, L.E., La orogenia sanrafaélica en los Andes de Mendoza (1999) Actas 14° Congreso Geológico, 1, p. 31. , Argentine
  • Cristallini, E.O., Ramos, V.A., Thick-skinned and thin-skinned thrusting in La Ramada fold and thrust belt : Crustal evolution of the High Andes of San Juan, Argentina (32° SL) (2000) Tectonophysics, 317, pp. 205-235
  • Dalla Salda, L., Cingolani, C., Varela, R., Early Paleozoic orogenic belt of the Andes in southwestern South America: Result of Laurentia-Gondwana collision? (1992) Geology, 20, pp. 617-620
  • Dalziel, I.W.D., Neoproterozoic-Paleozoic geography and tectonics: Review, hypothesis, environmental speculation (1997) Geological Society of America Bulletin, 109, pp. 16-42
  • Dávila, F.M., Astini, R.A., Schmidt, C.J., Unraveling 470 m.y. of shortening in the Central Andes and documentation of Type 0 superposed folding (2003) Geology, 3, pp. 275-278
  • Furque, G., Descripción geológica de la Hoja 16b, Cerro La Bolsa (1972) Dirección Nacional de Geología y Minería, Boletin, 125. , 69 p
  • (1999) Geological Time Scale, , http://www.geosociety.org/science/timescale/timescl.htm, Geological Society of America
  • Gonzalez Bonorino, F., Gonzalez Bonorino, G., Precordillera de Cuyo y Cordillera Frontal en el Paleozoico temprano: Terrenos bajo sospecha de ser autóctonos (1991) Revista Geológica de Chile, 18, pp. 97-107
  • Henry, B., Rouvier, H., Goff, M., Leach, D., Macquar, J.C., Thibieroz, J., Lewchuk, M.T., Palaeomagnetic dating of widespread remagnetization on the southeastern border of the French Massif Central and implications for fluid flow and Mississipi Valley-type mineralization (2001) Geophysical Journal International, 145, pp. 368-380
  • Hervé, F., Godoy, E., Parada, M.A., Ramos, V., Rapela, C., Mpodozis, C., Davidson, J., A general view on the Chilean-Argentine Andes, with emphasis on their early history (1987) Geodynamics Series, 18, pp. 97-113. , Monger, J. y Francheteau, J, Eds, Circum-Pacific Orogenic Belts and Evolution of the Pacific Basin, American Geophysical Union, Geological Society of America
  • Irving, E., Nomenclature in magnetic stratigraphy (1971) Geophysical Journal of the Royal astronomical Society, 24, pp. 529-531
  • Katz, B., Elmore, R.D., Cogoini, M., Ferry, S., Widespread chemical remagnetization : Orogenic fluids or burial diagenesis of clays? (1998) Geology, 26, pp. 603-606
  • Keller, M., Buggisch, W., Lehnert, O., The stratigraphical record of the Argentine Precordillera and its plate-tectonic background (1998) The Proto-Andean Margin of Gondwana, 142, pp. 35-56. , Pankhurst, R.J. y Rapela, C.W, eds, Geological Society of London Special Publication
  • Keller, M., Cañas, F.L., Lehnert, O., Vaccari, N.E., The Upper Cambrian and Lower Ordovician of the Precordillera (western Argentina): Some stratigraphic reconsiderations (1994) Newsletters on Stratigraphy, 31, pp. 115-132
  • Kirschvink, J.L., The least-squares and plane and the analysis of paleomagnetic data (1980) Geophysical Journal of the Royal astronomical Society, 67, pp. 699-718
  • Lopez Gamundi, O., Espejo, I., Conaghan, P. y Powell, C. Mc. A., 1994. Southern South America. En Veevers, J. y Powell, C. Me.A. (Eds.). Permian-Triassic Pangean Basins and Fold Belts along the Panthalassan margin of western Gondwanaland, Geological Society of America, Memoir, 184: 281-329; Lopez Gamundi, O., Azcuy, C.L., Cuerda, A., Valencio, D.A., Vilas, J.F., Cuencas Río Blanco y Calingasta-Uspallata (1987) El Siste-ma Carbonifero en la República, pp. 102-132. , Argentina, Ed. S. Archangelsky, Academia Nacional de Ciencias, Córdoba
  • Mahlburg Kay, S.M., Orrell, S., Abruzzi, J.M., Zircon and whole rock Nd-Pb isotopic evidence for a Grenville age and Laurentian origin for the basement of the Precordilleran terrane in Argentina (1996) Journal of Geology, 104, pp. 637-648
  • McCabe, C., Elmore, R.D., The occurrence and origin of Late Paleozoic remagnetization in the sedimentary rocks of North America (1989) Reviews of Geophysics, 27 (4), pp. 471-494
  • McElhinny, M.W., Statistical significance of the fold test in palaeomagnetism (1964) Geophysical Journal of the Royal astronomical Society, 8, pp. 338-340
  • Miller, J.D., Kent, D.V., Regional trends in the timing of Alleghanian remagnetization in the Appalachians (1988) Geology, 16, pp. 588-591
  • Mpodozis, C., Mahlburg Kay, S., Provincias magmáticas ácidas y evolución tectónica del Gondwana: Andes Chilenos (28-31°S) (1990) Revista Geológica de Chile, 17 (2), pp. 153-180
  • Oliver, J., Fluids expelled tectonically from orogenic belts: Their role in hydrocarbon migration and other geologic phenomena (1986) Geology, 14, pp. 99-102
  • Oliver, J., The spots and stains of plate tectonics (1992) Earth Science Reviews, 32, pp. 77-106
  • Opdyke, N.D., Channell, J.E.T., (1996) Magnetic Stratigraphy, , Academic Press, 346 p, San Diego
  • (1998) The Proto-Andean Margin of Gondwana, 142. , Pankhurst, R.J. y Rapela, C.W, eds, Geological Society of London Special Publication, 383 p
  • Prezzi, C., Vizán, H., Rapalini, A.E., Capítulo 12. Marco Paleogeográfico (2001) El Sistema Triásico en la, pp. 255-267. , Artabe, A, Morel, E. y Zamuner, A, Eds, Argentina
  • Ramos, V.A., Sudamérica: Un mosaico de continentes y océanos (1995) Ciencia Hoy, 6, pp. 24-29
  • (1999) Laurentia - Gondwana connections before Pangea, , Ramos, V.A. y Keppie, D, eds, Geological Society of America, Special Paper, 336: 276p
  • Rapalini, A.E., Evidencias de un evento de remagnetización regional en Precordillera asociado a la Fase San Rafael (1993) Actas 12° Congreso Geológico, 3, pp. 415-422. , Argentino, Mendoza
  • Rapalini, A.E., Astini, R.A., Primera evidencia paleomagnética del origen lauréntico de la Precordillera (1997) Actas 2° Jornadas de Geología de la Precordillera, pp. 60-65. , San Juan
  • Rapalini, A.E., Astini, R.A., Paleomagnetic confirmation of the Laurentian origin of the Argentine Precordillera (1998) Earth & Planetary Science Letters, 155, pp. 1-14
  • Rapalini, A.E., Cingolani, C.A., First late Ordovician paleomagnetic pole for the Cuyania (Precordillera) terrane of western Argentina: A microcontinent or a Laurentian plateau? (2004) Gondwana Research, 7 (4), pp. 1089-1104
  • Rapalini, A.E., Mena, M., Rotación tectónica antihoraria de la Formación Del Salto (Pérmico Inferior), provincia de San Juan, Argentina (2001) Revista de la Asociación Geológica Argentina, 56 (4), pp. 494-502
  • Rapalini, A.E., Tarling, D.H., Multiple magnetizations in the Cambro-Ordovician carbonate platform of the Argentine Precordillera and their tectonic implications (1993) Tectonophysics, 227, pp. 49-62
  • Rapalini, A.E., Vilas, J.F., Tectonic rotations in the Late Palaeozoic continental margin of Southern South America, determined and dated by palaeomagnetism (1991) Geophysical Journal International, 107, pp. 333-351
  • Rapalini, A.E., Bordonaro, O., Berquo, T.S., Paleomagnetic study of Cambrian-Ordovician rocks in the Eastern Precordillera of Argentina: Some constraints on the Andean uplift of this block (2000) Tectonophysics, 326, pp. 173-184
  • Thomas, W., Astini, R.A., The Argentine Precordillera: A traveler from the Ouachita embayment of North American Laurentia (1996) Science, 273, pp. 752-757
  • Thomas, W., Astini, R.A., Simple-shear conjugate rift margins of the Argentine Precordillera and the Ouachita embayment of North American Laurentia (1999) Geological Society of America Bulletin, 111, pp. 1069-1079
  • Thomas, W.A., Astini, R.A., Ordovician accretion of the Argentine Precordillera terrane to Gondwana: A review (2003) Journal of South American Earth Sciences, 16, pp. 67-79
  • Tomezzoli, R., Further paleomagnetic results from the Sierras Australes fold and thrust belt, Argentina (2001) Geophysical Journal International, 147, pp. 356-366
  • Truco, S., Rapalini, A.E., New evidence of a widespread Permian remagnetizing event in the central andean zone of Argentina (1996) 3rd International Symposium on Andean Geodynamics, pp. 799-802. , Actas:, St. Malo
  • Vaccari, N.E., (1994) Trilobitofaunas Cambro-Ordovícicas de las facies calcáreas del norte de la Precordillera (Provincias de San Juan y La Rioja), , Tesis Doctoral, Universidad Nacional de Córdoba inédita, 271 p
  • Valencio, D.A., (1980) El magnetismo de las rocas, , Eudeba, Buenos Aires, 351 p
  • von Gosen, W., Structural evolution of the Argentine Precordillera: The Rio San Juan section (1992) Journal of Structural Geology, 14 (6), pp. 643-667

Citas:

---------- APA ----------
Rapalini, A.E. & Astini, R.A. (2005) . The sanrafaelic remagnetization of precordillera in the permian: New evidence . Revista de la Asociacion Geologica Argentina, 60(2), 290-300.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v60_n2_p290_Rapalini [ ]
---------- CHICAGO ----------
Rapalini, A.E., Astini, R.A. "The sanrafaelic remagnetization of precordillera in the permian: New evidence " . Revista de la Asociacion Geologica Argentina 60, no. 2 (2005) : 290-300.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v60_n2_p290_Rapalini [ ]
---------- MLA ----------
Rapalini, A.E., Astini, R.A. "The sanrafaelic remagnetization of precordillera in the permian: New evidence " . Revista de la Asociacion Geologica Argentina, vol. 60, no. 2, 2005, pp. 290-300.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v60_n2_p290_Rapalini [ ]
---------- VANCOUVER ----------
Rapalini, A.E., Astini, R.A. The sanrafaelic remagnetization of precordillera in the permian: New evidence . Rev. Asoc. Geol. Argent. 2005;60(2):290-300.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v60_n2_p290_Rapalini [ ]