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Abstract:

The main objective of this paper is to show that the distribution of transitional palaeomagnetic data recorded at 250 Ma are in agreement with simulated data that depend on the sampling site, using a model that considers features of the Present Earth magnetic field. The analysis was performed comparing simulated reversals with the Permo-Triassic polarity transition recorded in the Siberian Trap Basalts. The palaeomagnetic data were corrected according to the Palaeo-latitude and Palaeo-longitude of Siberia (absolute reconstruction) at 250 Ma using hotspot tracks. To obtain the motion of Siberia relative to hotspots from the Present time back to 250 Ma, three different Pangaea models were considered (Pangaea A, Pangaea A2, Pangaea B). In spite of the uncertainties associated with the use of hotspot frameworks and Pangaea configurations, both the modelled and recorded data show a remarkable fit when absolute reconstructions of Pangaea A and A2 configurations are performed. The agreement between both simulated and recorded data suggests that similar features to that of the Present Earth magnetic field could have been involved in reversals since the Permo-Triassic.

Registro:

Documento: Artículo
Título:Analysis of a Permo-Triassic polarity transition in different absolute reconstructions of Pangaea, considering a model with features of the present Earth magnetic field
Autor:Vizán, H.; Van Zele, M.A.
Filiación:Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Departamento de Ciencias Geológicas, Universidad de Buenos Aires, Pabellón II, 1er piso, C1428EGA Buenos Aires, Argentina
Palabras clave:Absolute reconstruction; Earth magnetic field; Pangaea; Permo-Triassic; Polarity transition; geomagnetic field; magnetic reversal; paleomagnetism; Pangaea; Permian-Triassic boundary; reconstruction
Año:2007
Volumen:50
Número:2
Página de inicio:191
Página de fin:202
Título revista:Annals of Geophysics
Título revista abreviado:Ann. Geophys.
ISSN:15935213
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15935213_v50_n2_p191_Vizan

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Citas:

---------- APA ----------
Vizán, H. & Van Zele, M.A. (2007) . Analysis of a Permo-Triassic polarity transition in different absolute reconstructions of Pangaea, considering a model with features of the present Earth magnetic field. Annals of Geophysics, 50(2), 191-202.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15935213_v50_n2_p191_Vizan [ ]
---------- CHICAGO ----------
Vizán, H., Van Zele, M.A. "Analysis of a Permo-Triassic polarity transition in different absolute reconstructions of Pangaea, considering a model with features of the present Earth magnetic field" . Annals of Geophysics 50, no. 2 (2007) : 191-202.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15935213_v50_n2_p191_Vizan [ ]
---------- MLA ----------
Vizán, H., Van Zele, M.A. "Analysis of a Permo-Triassic polarity transition in different absolute reconstructions of Pangaea, considering a model with features of the present Earth magnetic field" . Annals of Geophysics, vol. 50, no. 2, 2007, pp. 191-202.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15935213_v50_n2_p191_Vizan [ ]
---------- VANCOUVER ----------
Vizán, H., Van Zele, M.A. Analysis of a Permo-Triassic polarity transition in different absolute reconstructions of Pangaea, considering a model with features of the present Earth magnetic field. Ann. Geophys. 2007;50(2):191-202.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15935213_v50_n2_p191_Vizan [ ]