Evidence of a microplate in the Southern Andes?

Paleomagnetic poles for Late Paleozoic-Early Mesozoic rocks exposed in stable and possible mobile zones of Western Argentina are reported. They suggest two interpretations. One of the interpretations suggests that a mobile zone situated at about 32.1°South 69.3°West, in the Central Andes, rotated ab...

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Autor principal: Valencio, D.A
Otros Autores: Vilas, J.F.A
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1985
Acceso en línea:Registro en Scopus
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245 1 0 |a Evidence of a microplate in the Southern Andes? 
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506 |2 openaire  |e Política editorial 
504 |a Athavale, Rao, Rao, Paleomagnetic results from two basic volcanic formations in the western Himalayas and a Phanerozoic polar wandering curve for India (1980) Geophys. J. Roy. astr. Soc., 60, pp. 419-433 
504 |a Embleton, A review of the paleomagnetism of Australia and Antartica. Paleo-reconstructions of the Continents (1980) Am. Geophys. Union, 2, pp. 77-92. , M.W. McElhinny, D.A. Valencio 
504 |a McElhinny, Embleton, Daly, Pozzi, Paleomagnetic evidence for the location of Madagascar in Gondwanaland (1976) Geology, 4, pp. 455-457 
504 |a Nur, Ben-Avrhaham, Speculations on mountain building and the lost Pacifica Continent (1980) J. Phys. Earth, 26, pp. 521-537. , Suppl 
504 |a Schomaker, Waser, Marsh, Bergman, To fit a plane or a line to a set of points by least squares (1959) Acta Crystallographica, 12, pp. 600-604 
504 |a Valencio, Paleogeografía del Gondwana a partir de datos paleomagnéticos. II Congreso Latinoamericano de Geología (1973) Caracas, Venezuela, 1, pp. 162-195 
504 |a Valencio, Mitchell, Edad postasio-argón y paleomagnetismo de rocas ígneas de las formaciones Quebrada del Pimiento y Las Cabras (1972) Provincia de Mendoza, 27, pp. 170-178. , Rev. Asoc. Geol. Arg 
504 |a Valencio, Vilas, Paleomagnetism of Late Paleozoic and Early Mesozoic rocks of South America (1972) Earth Planet. Sci. Lett., 15, pp. 75-85 
504 |a Valencio, D. A. and Vilas, J. F., Paleomagnetism and K-Ar age determinations of Late Paleozoic-Early Mesozoic rocks of Western Argentina, in press; Vilas, Reconstrucción y evolución del continente Gondwana (1976) Geoacta, 9 (1), pp. 93-108 
504 |a Vilas, Paleomagnetism of South American rocks and the dynamics processes related with the fragmentation of western Gondwana (1980) Paleoreconstructions of the Continents, 2, pp. 106-114. , M.W. McElhinny, D.A. Valencio, American Geophys. Union 
504 |a Vilas, Valencio, Paleomagnetism of South American rocks and the Gondwana Continent (1977) Fourth Internat. Gondwana Symposium, pp. 923-930. , Calcutta, Papers, II 
504 |a Vilas, Valencio, Paleomagnetism of South American rocks and the age of the South Atlantic (1978) Rev. Brasil. Geociéncias, B, 1, pp. 3-10 
504 |a Wensink, The paleomagnetism of the Speckled Sandstone of Early Permian age from the Salt Range, Pakistan (1975) Tectonophysics, 26, pp. 281-292 
520 3 |a Paleomagnetic poles for Late Paleozoic-Early Mesozoic rocks exposed in stable and possible mobile zones of Western Argentina are reported. They suggest two interpretations. One of the interpretations suggests that a mobile zone situated at about 32.1°South 69.3°West, in the Central Andes, rotated about 60° clockwise after Late Paleozoic time. The other interpretation suggests that at least the Andean zone between 32.1° and 31.7° South is allochthonous and was situated in the Pacific, at tropical latitudes, in the Late Paleozoic. On this interpretation the accretion of this microplate to South America ocurred in Permo-Triassic times. © 1985.  |l eng 
593 |a Departamento de Ciencias Geológicas, Ciudad Universitaria, Pabellón 2, 1428 Buenos Aires, Argentina 
700 1 |a Vilas, J.F.A. 
773 0 |d 1985  |g v. 2  |h pp. 183-192  |k n. 2-3  |p J. Geodyn.  |x 02643707  |t Journal of Geodynamics 
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