El paleomagnetismo como indicador de paleotemperaturasaplicación a las Cordilleras Béticas

  1. J.J. Villalaín 1
  2. M.L. Osete 1
  1. 1 Depto. Geofísica. Facultad de Ciencias Físicas. Universidad Complutense. Madrid
Revue:
Geogaceta

ISSN: 0213-683X

Année de publication: 1996

Número: 20

Pages: 1066-1069

Type: Article

D'autres publications dans: Geogaceta

Résumé

Previous palaeomagnetic studies performed in the Western Interna/ Subbetics revealed the presence of a widespread neogene remagnetizalion in these units. In this work we analyze the hypothesis of a thermoviscous remagnetization to explain this phenomena. We use the palaeomagnetic data to obtain palaeotemperature information. Experiments about viscous and thermoviscous magnetization have been carried out to determine the adequate thermal activation of magnetization theory. This theory estimates palaeotemperature va/ues of about 250ºC far the jurassic limestones of the Western Subbetics.