Remagnetizaciones asociadas a diagénesis y su relación con el emplazamiento de láminas cabalgantes en el Pirineo Meridional.

• Autores: Jaume Dinarès Turell
• Localización: Geogaceta, ISSN 0213-683X, Nº. 15, 1993, págs. 105-108
• Idioma: español
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• Resumen

  • Paleomagnetic analysis in conjunction with petrographic Observations on Mesozoic carbonates from the southern Pyrenees reveals that the magnetization of thoserocks is a secondary CRM residing in both goethite and hematites of diagenetic origin. Time constraints indicate that hematite is older in age and is associated to a dedolomitization process which probably spanned longer in the Sierras Marginales than in the Montsec units. The characteristics o f the unraveled components a llo w to speculate a b o u t some paleoenviromental and tectonic aspects