Navegar

Colección

Datos Estadísticas

Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

The South American palaeomagnetic poles published after the Upper Mantle Conference on Solid Earth Problems held at Buenos Aires in 1970, are summarized. The Late Palaeozoic-Cretaceous section of the South American polar wandering curve is now defined on the basis of twenty palaeomagnetic poles; these poles define five "age groups" at Late Carboniferous, Permo-Carboniferous, Middle Permian, Triassic and Cretaceous times. The comparison of the Late Palaeozoic-Mesozoic sections of the polar wandering curves of South America, Australia and Africa suggests that the former fragmentation of the Gondwana occurred in Late Carboniferous or Permo-Carboniferous times and that the origin of the South Atlantic Ocean took place after the Middle Jurassic (160 m.y.) but before the Early Cretaceous (120 m.y.). © 1974.

Registro:

Documento: Artículo
Título:The South American palaeomagnetic data and the main episodes of the fragmentation of Gondwana
Autor:Valencio, D.A.
Filiación:Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Año:1974
Volumen:9
Número:3
Página de inicio:221
Página de fin:225
DOI: http://dx.doi.org/10.1016/0031-9201(74)90140-X
Título revista:Physics of the Earth and Planetary Interiors
Título revista abreviado:Phys. Earth Planet. Inter.
ISSN:00319201
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319201_v9_n3_p221_Valencio

Referencias:

  • Creer, Mitchell, Abou Deeb, Palaeomagnetism and radiometric age of the Jurassic Chon Aike Formation from Santa Cruz Province (1972) Argentina: Implications for the opening of the South Atlantic, 14, pp. 131-138. , Earth Planet. Sci. Lett
  • Fleck, Mercer, Nairn, Peterson, Chronology of Late Pliocene and Early Pleistocene Glacial and Magnetic Events in Southern Argentina (1972) Earth Planet. Sci. Lett., 16, pp. 15-22
  • Linares, E. and Valencio, D.A., in press. Palaeomagnetism and K/Ar ages of some trachybasaltic dikes from Rio de Los Molinos, Province of Córdoba, República Argentina; MacDonald, Opdyke, Tectonic rotations suggested by palaeomagnetic results from Northern Colombia South America (1972) Journal of Geophysical Research, 77 (29), pp. 5720-5734
  • Mazoires, d'Albuquerque Menor, Roche, Saucier, Saucier, Sial, Etude paléomagnétique de laves de l'île Fernando de Noronha (1971) C.R. Acad. Sci., 273, pp. 551-554. , Paris
  • McElhinny, Briden, Continental drift during the Palaeozoic (1971) Earth Planet. Sci. Lett., 10, p. 407
  • Opdyke, MacDonald, Palaeomagnetism of Late Cretaceous Pocos de Caldas Alkaline Complex, Southern Brazil (1973) Earth Planet. Sci. Lett., 18, pp. 37-44
  • Pacca, I.G. and Valencio, D.A., in press. Preliminary palaeomagnetic study of igneous rocks from Abrolhos Islands, Brazil; Sinito, A.M., in press. Paleomagnetismo de varvitas de la Formación Itú, Brasil: su aporte al conocimiento de la variación secular Neopaleozoica. Thesis, Facultad Ciencias Exactas y Naturales, Univ. Buenos Aires; Thompson, Palaeomagnetic results from the Paganzo Basin of Northwest Argentina (1972) Earth Planet. Sci. Lett., 15, pp. 145-156
  • Thompson, Mitchell, Palaeomagnetic and radiometric evidence for the age of the Lower boundary of the Kiaman Magnetic Interval in South America (1972) Geophysical Journal International, 27, pp. 207-214
  • Valencio, El paleomagnetismo de algunas magmatitas del Triásico Superior (1969) Rev. Asoc. Geol. Argent., 24, pp. 191-198. , Grupo Cacheuta, Provincia de Mendoza, República Argentina, 3
  • Valencio, El paleomagnetismo de una formación magmática del suroeste de la Provincia de Mendoza (1969) Actas IVas. J. Geol. Argent., 2, pp. 375-396
  • Valencio, Working document on Palaeomagnetism (1970) Conf. on Solid-Earth Problems, 1, pp. 100-115. , Buenos Aires, 1970
  • Valencio, Palaeomagnetism of the Lower Cretaceous Vulcanites Cerro Colorado Formation of the Sierra de los Cóndores Group (1972) Earth Planet. Sci. Lett., 16, pp. 370-378. , Province of Córdoba, Argentina
  • Valencio, D.A., in press a. Intercontinental correlation of Late Palaeozoic South American rocks on the basis of their magnetic remanences. Int. Symp. Carboniferous and Permian Systems in South America, São Paulo; Valencio, D.A., in press b. The palaeomagnetism of South American rocks and its significance regarding the fragmentation of Gondwana. Third Int. Gondwana Symp. Canberra; Valencio, Mitchell, Edad Potasio-Argon paleomagnetismo de rocas igneas de las Formaciones Quebrada del Pimiento y Las Cabras, Provincia de Mendoza (1972) Rev. Asoc. Geol. Argent., 27 (2), pp. 170-178
  • Valencio, Vilas, Age of the separation of South America and Africa (1969) Nature, 224 (5213), pp. 1353-1354
  • Valencio, Vilas, Palaeomagnetism of Late Palaeozoic and Early Mesozoic rocks of South America (1972) Earth Planet. Sci. Lett., 15, pp. 75-85
  • Vilas, J.F., in press a. Palaeomagnetism of some igneous rocks of the Middle Jurassic Chon Aike Formation from Estancia La Reconquista, Province of Santa Cruz, Argentina; Vilas, J.F., in press b. Palaeomagnetism of some lava flows of the Lower Cretaceous, Sierra de los Cóndores Group, Province of Córdoba, Argentine

Citas:

---------- APA ----------
(1974) . The South American palaeomagnetic data and the main episodes of the fragmentation of Gondwana. Physics of the Earth and Planetary Interiors, 9(3), 221-225.
http://dx.doi.org/10.1016/0031-9201(74)90140-X
---------- CHICAGO ----------
Valencio, D.A. "The South American palaeomagnetic data and the main episodes of the fragmentation of Gondwana" . Physics of the Earth and Planetary Interiors 9, no. 3 (1974) : 221-225.
http://dx.doi.org/10.1016/0031-9201(74)90140-X
---------- MLA ----------
Valencio, D.A. "The South American palaeomagnetic data and the main episodes of the fragmentation of Gondwana" . Physics of the Earth and Planetary Interiors, vol. 9, no. 3, 1974, pp. 221-225.
http://dx.doi.org/10.1016/0031-9201(74)90140-X
---------- VANCOUVER ----------
Valencio, D.A. The South American palaeomagnetic data and the main episodes of the fragmentation of Gondwana. Phys. Earth Planet. Inter. 1974;9(3):221-225.
http://dx.doi.org/10.1016/0031-9201(74)90140-X