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Abstract:

A paleomagnetic study in Upper Pliensbachian-Lower Toarcian rocks of Extra-Andinian Patagonia was carried out. Characteristic magnetizations isolated from three sections pass the tilt test. The resulting Early Jurassic paleomagnetic pole (PP) (Long. = 129.4°E, Lat. = 75.5°S, A95 = 6.8°, N = 13, K = 38.7, R = 12.7), together with other reliable Jurassic PPs of cratonal South America defines a hitherto undocumented Jurassic track of apparent polar wander path (APWP). This track suggests recurrent movement of South America with high velocity during the Lower Jurassic. A comparison among the Jurassic PPs of Gondwana continents suggests that APWP can account for a great part of the differences observed between northwestern and southern African Jurassic paleopoles.

Registro:

Documento: Artículo
Título:Paleomagnetism of the Lower Jurassic Lepa and Osta Arena formations, Argentine Patagonia
Autor:Vizán, H.
Filiación:Laboratorio Daniel A. Valencio, Fac. de Ciencias Exactas y Naturales, Ciudad Universitaria, C.P. 1428, Buenos Aires, Argentina
School of Earth Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
Palabras clave:Jurassic; paleomagnetism; Argentina
Año:1998
Volumen:11
Número:4
Página de inicio:333
Página de fin:350
DOI: http://dx.doi.org/10.1016/S0895-9811(98)00018-2
Título revista:Journal of South American Earth Sciences
Título revista abreviado:J. South Am. Earth Sci.
ISSN:08959811
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v11_n4_p333_Vizan

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Citas:

---------- APA ----------
(1998) . Paleomagnetism of the Lower Jurassic Lepa and Osta Arena formations, Argentine Patagonia. Journal of South American Earth Sciences, 11(4), 333-350.
http://dx.doi.org/10.1016/S0895-9811(98)00018-2
---------- CHICAGO ----------
Vizán, H. "Paleomagnetism of the Lower Jurassic Lepa and Osta Arena formations, Argentine Patagonia" . Journal of South American Earth Sciences 11, no. 4 (1998) : 333-350.
http://dx.doi.org/10.1016/S0895-9811(98)00018-2
---------- MLA ----------
Vizán, H. "Paleomagnetism of the Lower Jurassic Lepa and Osta Arena formations, Argentine Patagonia" . Journal of South American Earth Sciences, vol. 11, no. 4, 1998, pp. 333-350.
http://dx.doi.org/10.1016/S0895-9811(98)00018-2
---------- VANCOUVER ----------
Vizán, H. Paleomagnetism of the Lower Jurassic Lepa and Osta Arena formations, Argentine Patagonia. J. South Am. Earth Sci. 1998;11(4):333-350.
http://dx.doi.org/10.1016/S0895-9811(98)00018-2