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Abstract:

Paleomagnetic results from Permian clastic and igneous rocks of the Carapacha Basin of the Gondwáides orogenic zone of central Argentina are mainly consistent with results reported previously from the same zone further east, e.g., in the Sierra de la Ventana. Three lithologic entities were analysed: the lower member and upper member of the Carapacha Formation, and an andesite intrusive into the upper member. The directions of their characteristic remanences are similar, differ significantly from the present field direction, and are post-folding. The in situ magnetization directions are moreover consistent with directions expected for late Permian poles of the APWP for South America. The in situ pole for the lower Carapacha Formation is 70°S, 049°E, A95=1° (San Roberto pole); the pole for the upper Carapacha, combined with similar directions from the intrusive, is 64°S, 005°E, A95=5° (Río Curacó pole). These magnetizations imply that the Carapacha Formation, with a minimum age of early Late Permian (about 260 Ma.), was deformed before the end of the Permian. Structural evidence, as well as paleomagnetic, IRM, and AMS experimental results, support the interpretations. The paleogeographic implications of these results are interpreted as a significant counterclockwise movement of Gondwana between the early and the late Permian. Copyright © The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan: The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences; TERRAPUB.

Registro:

Documento: Artículo
Título:Tectonic implications of post-folding permian magnetizations in the Carapacha Basin, La Pampa province, Argentina
Autor:Tomezzoli, R.N.; Melchor, R.N.; MacDonald, W.D.
Filiación:CONICET-Consejo Nacional de Investigaciones Científicas y Técnicas, Pab. II., C1428EHA Caba, Argentina
Universidad de Buenos Aires, F.C.E. y N., Departamento de Ciencias Geoléogicas, Pab. II., C1428EHA Caba, Argentina
Universidad Nacional de La Pampa, Av. Uruguay 151, 6300 Santa Rosa La Pampa, Argentina
State University of New York, Binghamton, NY 13902-6000, United States
Palabras clave:AMS; Carapacha Basin; Gondwana; Late Paleozoic; Magnetic anisotropy; Paleomagnetism; South America; folding; lithology; magnetic anisotropy; magnetization; orogeny; paleomagnetism; Permian; tectonics; Argentina; Carapacha Basin; La Pampa; South America
Año:2006
Volumen:58
Número:10
Página de inicio:1235
Página de fin:1246
DOI: http://dx.doi.org/10.1186/BF03352619
Título revista:Earth, Planets and Space
Título revista abreviado:Earth Planets Space
ISSN:13438832
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13438832_v58_n10_p1235_Tomezzoli

Referencias:

  • Azcuy, C.L., Caminos, R., Diastrofismo (1987) El Sistema Carbonífero En La República Argentina, pp. 239-251. , in edited by S. Archangelsky, Academia Nacional de Ciencias, Córdoba
  • Cobbold, P.R., Gapais, D., Rossello, E.A., Partitioning of transpressive motions within a sigmoidal foldbelt: The Variscan Sierras Australes, Argentina (1991) Journal of Structural Geology, 13 (7), pp. 743-758
  • Cobbold, P.R., Gapais, D., Rossello, E.A., Milani, E., Szatmari, P., Permo-Triassic intracontinental deformation in SW Gondwana (1992) Inversion Tectonics of the Cape Fold Belt, Karoo and Cretaceous Basins of Southern Africa, pp. 23-26. , in edited by W. Ransome, Balkema, Rotterdam
  • Dalmayrac, B., Laubacher, G., Marocco, R., Martinez, C., Tomasi, P., La chaine hercynienne d'Amerique du Sud. Structure et evolution d'un orogene intracratonique (1980) Sonderdruck A.d. Geol. Rundschau, 69 (1), pp. 1-21. , Stuttgart
  • Dunlop, D.J., Özdemir, Ö., (1997) Rock Magnetism. Fundamentals and Frontiers, p. 573. , Cambridge University Press, Cambridge
  • Du Toit, A., A geological comparison of South America with South Africa (1927), 381, pp. 1-157. , Carnegie Institute of Washington Publications Washington; Embleton, B.J.J., Paleomagnetic results for the Permian of South America and a comparison with the African and Australian data (1970) Geophysical Journal Royal Astronomical Society, 21, pp. 105-118
  • Enkin, J.R., The direction-correction tilt test: An all-purpose tilt/fold test for paleomagnetic studies (2003) Earth and Planetary Science Letters, 212, pp. 151-166
  • Ernesto, M., New Early Triassic Paleomagnetic Pole for South America from the Alto Paraguay Alkaline Province (2005) 2005 Joint Assembly AGU, , New Orleans, USA, Abstracts: GP-41A-08
  • Fisher, R.A., Dispersion on a sphere (1953) Proceedings Royal Society of London, A217, pp. 295-305
  • Gradstein, F., Ogg, J., Smith, A., (2004) A Geologic Time Scale 2004, p. 589. , Cambridge University Press, New York
  • Halls, H.C., A least squares method to find a remanence direction from converging remagnetization circles (1976) Geophysical Journal of the Royal Astronomical Society, 45, pp. 297-304
  • Japas, M.S., La deformación de la cadena plegada de las Sierras Australes de la provincia de Buenos Aires (1989) Anales De La Academia Nacional De Ciencias Exactas Físicas Y Naturales, 40, pp. 193-215. , Buenos Aires
  • Jelinek, K., Characterization of the magnetic fabric of rocks (1981) Tectonophysics, 79, pp. 63-67
  • Kay, S.M., Ramos, V.A., Mpodozis, C., Sruoga, P., Late Paleozoic to Jurassic silicic magmatism at the Gondwana margin: Analogy to the Middle Proterozoic in North America? (1989) Geology, 17, pp. 324-328
  • Keidel, J., La geología de las sierras de la Provincia de Buenos Aires y sus relaciones con las montañas del Cabo y los Andes (1916), 19 (3). , Ministerio de Agricultura Nacional, Anales Dirección Nacional de Geología y Mineria. Buenos Aires; Kirschvink, J.L., The least squares line and plane and the analysis of paleomagnetic data (1980) Geophysical Journal Royal Astronomical Society, 62, pp. 699-718
  • Linares, E., Llambías, E.J., Latorre, C.O., Geología de la provincia de La Pampa, República Argentina y Geocronología de sus rocas metamórficas y eruptivas (1980) Revista De La Asociación Geológica Argentina, 35 (1), pp. 87-146
  • Llambías, J.E., Sato, A.M., El batolito de Colanguil: Transición entre orogénesis y anorogénesis (1995) Revista De La Asociación Geológica Argentina, 50 (1-4), pp. 111-131
  • Llambías, E.J., Melchor, R.N., Tickyj, H., Sato, A.M., Geología del Bloque del Chadileuvú (1996) XIII Congreso Geológico Argentino Y III Congreso De Exploración De Hidrocarburos, Actas V, pp. 417-425. , Buenos Aires
  • López Gamundi, O.R., Conaghan, P.J., Rosello, E.A., Cobbold, P.R., The Tunas Formation (Permian) in the Sierras Australes Foldbelt, east central Argentina: Evidence for syntectonic sedimentation in a foreland basin (1995) Journal of South American Earth Sciences, 8 (2), pp. 129-142
  • Malvicini, L., Delpino, D.H., Metalogénesis de los complejos riolíticos de la provincia geológica Sanrafaelino Pampeana y la Comarca Nordpatagónica, Argentina (1987) X Congreso Geológico Argentino, 5, pp. 63-82. , S. M. de Tucumán
  • McElhinny, N.W., Lock, J., IAGA paleomagnetic databases (1996) Access Surv. Geophys., 17, pp. 575-591
  • McFadden, P.L., A new fold test for paleomagnetic studies (1990) Geophysical Journal International, 103, pp. 163-169
  • McFadden, P.L., McElhinny, N.W., The combined analysis of remagnetization circles and direct observations in paleomagnetism (1988) Geophysical Journal International, 103, pp. 725-729
  • Melchor, R.N., Sedimentología de las unidades paleozoicas aflorantes del centro-oeste de la provincia de La Pampa, Argentina (1995), p. 272. , Universidad Nacional de La Plata. Tesis doctoral inédita La Plata; Melchor, R.N., Redefinición estratigráfica de la Formación Carapacha (Pérmico), Provincia de La Pampa, Argentina (1999) Revista De La Asociación Geológica Argentina, 54, pp. 99-108
  • Melchor, R.N., Llambías, E.J., Descripción de la Hoja Geológica 37661 "Santa Isabel" (2000), p. 48. , Provincia de La Pampa, Servicio Geológico Minero Argentino (unpublished); Melchor, R.N., Césari, S.N., Algunos elementos paleoflorísticos de la Formación Carapacha (Pérmico inferior), provincia de La Pampa, República Argentina (1991) Ameghiniana, 28, pp. 347-352
  • Melchor, R.N., Césari, S.N., Permian floras from Carapacha Basin, La Pampa Province, central Argentina. Description and importance (1997) Geobios, 30 (5), pp. 607-633
  • Pascholati, E.M., Possibilidade de interferencias termais do magnetismo Juro-cretácico na analise paleomagnética do Grupo Itarare (1983) Atlas Do 4 Simposio Regional De Geologia, SBG, pp. 211-222. , Sao Paulo
  • Ramos, V.A., Patagonia: Un continente paleozoico a la deriva? (1984) 9° Congreso Geológico Argentino, Actas II, pp. 311-325. , S. C. Bariloche, Buenos Aires
  • Ramos, V.A., Tectonics of the Late Proterozoic Early Paleozoic: A collisional history of Southern South America (1988) Episodes, 11 (3), pp. 168-174. , Ottawa
  • Rapalini, A.E., Tarling, D.H., Multiple magnetizations in the Cambrian-Ordovician carbonate platform of the Argentine Pre-cordillera and their tectonic implications (1993) Tectonophysics, 227, pp. 49-62
  • Rapalini, A.E., Tarling, D.H., Turner, P., Flint, S., Vilas, J.F., Paleomagnetism of the Carboniferous Tepuel Group, central Patagonia, Argentina (1994) Tectonics, 13 (5), pp. 1277-1294
  • Rapalini, A.E., Fazzito, S., Orué, D., A new Late Permian paleomagnetic pole for stable South America: The Independencia Group, eastern Paraguay (2006) Earth Planets Space, 58, pp. 1247-1253. , this issue
  • Rapela, C.W., Pankhurst, R.J., Llambías, E.J., Labudía, C., Artabe, A., "Gondwana" magmatism of Patagonia: Inner cordilleran calc-alkaline batholiths and bimodal volcanic provinces (1996) Proceedings Third International Symposium on Andean Geodynamics, pp. 791-794. , Saint Malo
  • Sellés Martinez, J., The structure of Sierras Australes (Buenos Aires, Argentina). An example of folding in a transpressive environment (1989) Journal of South America Earth Science, 2 (4), pp. 317-329
  • Sinito, A.M., Valencio, D.A., Vilas, J.F., Paleomagnetism of a sequence of Upper Paleozoic-Lower Mesozoic red beds from Argentina (1979) Geophysical Journal Royal Astronomical Society, 58, pp. 237-247
  • Tarling, D.H., Hrouda, F., (1993) The Magnetic Anisotropy of Rocks, p. 217. , edited by Chapman & Hall, London, Sel 8 Hn
  • Tickyj, H., Estructura y petrología del basamento cristalino de la región centro - Sur de la provincia de La Pampa, Argentina (1999), p. 228. , Tesis Doctoral. Universidad Nacional de La Plata La Plata, Unpublished; Tickyj, H., Llambías, E.J., Sato, A.M., El basamento cristalino de la región sur-oriental de la provincia de La Pampa: Extensión austral del Oróeno Famatiniano de Sierras Pampeanas (1999) 14th Congreso Geológico Argentino, Actas 1, pp. 160-163
  • Tomezzoli, R.N., Further paleomagnetic results from the Sierras Australes fold and thrust belt, Argentina (2001) Geophysical Journal International, 147, pp. 356-366
  • Tomezzoli, R.N., Paleogeography of Southwest Gondwana boundary during the Upper Paleozoic (2005) Eos Trans. AGU, 86 (18). , Jt. Assem. Suppl., Abstract GP41A-03
  • Tomezzoli, R.N., Vilas, J.F., Paleomagnetismo y fábrica magnética en afloramientos cercanos a las Sierras Australes de la Provincia de Buenos Aires (López Lecube y González Chaves) (1997) Revista Asoc. Geol. Argentina, 52 (4), pp. 419-432
  • Tomezzoli, R.N., Vilas, J.F., Paleomagnetic constraints on age of deformation of the Sierras Australes thrust and fold belt, Argentina (1999) Geophysical Journal International, 138, pp. 857-870
  • Tomezzoli, R.N., Melchor, R.N., Estudio paleomagnético preliminar en el miembro superior de la Formacion Carapacha, provincia de La Pampa. 19° Reunión de la Asociación Argentina de Geofísicos y Geodestas. 1as (1997) Jornadas De Catastro Minera, 1, pp. 106-110. , San Juan
  • Tomezzoli, R.N., MacDonald, W.D., Tickyj, H., Composite magnetic fabrics from S-C granitic gneiss of Cerro de los Viejos, La Pampa province, Argentina (2003) Journal of Structural Geology, 25 (2), pp. 159-169
  • Tomezzoli, R.N., Kleiman, L., Salvarredi, J., Terrizzano, C., Cristallini, E.O., Paleogeographic evolution of the Southwest Gondwana boundary during the late Paleozoic (2005) Paleomagnetism of the Lower Choiyoi Volcanics in the San Rafael Block, Mendoza, Argentina, pp. 730-733. , ISAG. Extended Abstracts, Barcelona
  • Valencio, D.A., Vilas, J.F., Mendia, J.E., Paleomagnetism of a sequence of red beds of the middle and the upper sections of Paganzo Group (Argentina) and the correlation of upper Paleozoic-lower Mesozoic rocks (1977) Geophysical Journal Royal Astronomical Society, 51, pp. 59-74
  • Van der Voo, R., The reliability of paleomagnetic data (1990) Tectonophysics, 184, pp. 1-9
  • Van der Voo, R., (1993) Paleomagnetism of the Atlantic, Tethys and Lapetus Oceans, p. 411. , Cambridge University Press
  • Veevers, J.J., Powell, C.McA., Collinson, J.W., López Gamundí, O.R., Synthesis, in Permian-Triassic Basins and Foldbelts along the Panthalassan Margin of Gondwanaland (1994) Geol. Soc. of America. Memoir, 184, pp. 331-354. , edited by J. J. Veevers and McA. Powell
  • Zijderveld, A.C., Demagnetization of rocks: Analysis of results (1967) Methods in Paleomagnetism, pp. 254-286. , in edited by D. W. Collinson, K. M. Creer, and S. K. Runcorn, Elsevier Amsterdam

Citas:

---------- APA ----------
Tomezzoli, R.N., Melchor, R.N. & MacDonald, W.D. (2006) . Tectonic implications of post-folding permian magnetizations in the Carapacha Basin, La Pampa province, Argentina. Earth, Planets and Space, 58(10), 1235-1246.
http://dx.doi.org/10.1186/BF03352619
---------- CHICAGO ----------
Tomezzoli, R.N., Melchor, R.N., MacDonald, W.D. "Tectonic implications of post-folding permian magnetizations in the Carapacha Basin, La Pampa province, Argentina" . Earth, Planets and Space 58, no. 10 (2006) : 1235-1246.
http://dx.doi.org/10.1186/BF03352619
---------- MLA ----------
Tomezzoli, R.N., Melchor, R.N., MacDonald, W.D. "Tectonic implications of post-folding permian magnetizations in the Carapacha Basin, La Pampa province, Argentina" . Earth, Planets and Space, vol. 58, no. 10, 2006, pp. 1235-1246.
http://dx.doi.org/10.1186/BF03352619
---------- VANCOUVER ----------
Tomezzoli, R.N., Melchor, R.N., MacDonald, W.D. Tectonic implications of post-folding permian magnetizations in the Carapacha Basin, La Pampa province, Argentina. Earth Planets Space. 2006;58(10):1235-1246.
http://dx.doi.org/10.1186/BF03352619