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
Journal:
Geogaceta

ISSN: 0213-683X

Year of publication: 1996

Issue: 20

Pages: 1066-1069

Type: Article

More publications in: Geogaceta

Abstract

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.