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handle: 10261/188347
[ES] La placa Ibérica representa un reto dentro del puzle paleogeográfico. Su localización ocupa una posición estratégica para la cinemática global de placas, especialmente durante la apertura del océano Atlántico y el golfo de Vizcaya. Se analizan aquí los polos paleomagnéticos de Iberia disponibles en la literatura y su fiabilidad. Con ayuda de software libre de dinámica litosférica y mantélica (GPlates, GMAP), se realizan y evalúan diferentes métodos de construcción de ¿Curvas de Deriva Polar Aparente¿ de la placa Ibérica desde el Pérmico. Se analiza además la reconstrucción de la cinemática de la placa Ibérica a partir de dos modelos actuales distintos de circuitos de placas, y también a partir de la recopilación de polos paleomagnéticos realizada. Los resultados muestran la necesidad de reexaminar los datos paleomagnéticos disponibles para la placa Ibérica y la de obtener nuevos polos paleomagnéticos de calidad.
[EN] The Iberian plate represents a challenge within the paleogeographic puzzle. Its location is strategically positioned for the global kinematics of plates, especially during the opening of the Atlantic Ocean and the Bay of Biscay. Reliability of available Iberian paleomagnetic poles is discussed here. Using free software (GPlates, GMAP) of lithospheric and mantle dynamics modelling, different construction methods of the "Apparent Polar Wander Path" (APWP) for the Iberian plate are performed and evaluated since Permian times. In addition, reconstruction of Iberian plate kinematics is analyzed following two distinct, current plate-circuits models; and also the compilation of Iberian paleomagnetic poles. Results show the need of re-examining the available paleomagnetic data for the Iberian plate as well as the need for obtaining new, quality paleomagnetic poles.
Trabajo presentado en el IX Congreso Geológico de España, celebrado en Huelva (España), del 12 al 14 de septiembre de 2016
Peer reviewed
Placa Ibérica, Paleomagnetism, Circuitos de placas, Geodinámica, APWPs, Iberian plate, Plate circuits, Paleomagnetismo, “Curvas de Deriva Polar Aparente”, Geodynamics
Placa Ibérica, Paleomagnetism, Circuitos de placas, Geodinámica, APWPs, Iberian plate, Plate circuits, Paleomagnetismo, “Curvas de Deriva Polar Aparente”, Geodynamics
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