Propuesta metodológica para la caracterización de la mineralogía magnética en estudios paleoambientales: aplicación al yacimiento de Atapuerca

• Bógalo, M.F. ^[1] ; Heller, F. ^[2] ; Villalaín, J.J. ^[1] ; Calvo, M. ^[1] ; Osete M.L. ^[3] ; Pérez-González, A. ^[3]
  1. [1] Universidad de Burgos

     Universidad de Burgos

     Burgos, España

     
  2. [2] Swiss Federal Institute of Technology in Zurich

     Swiss Federal Institute of Technology in Zurich

     Zürich, Suiza

     
  3. [3] Universidad Complutense de Madrid

     Universidad Complutense de Madrid

     Madrid, España

     

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• Localización: Geogaceta, ISSN 0213-683X, Nº. 34, 2003, págs. 107-110
• Idioma: español
• Títulos paralelos:
  • A methodology for the characterisation of magnetic mineralogy in paleoenvironmental studies: application to the Atapuerca site
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• Resumen

  • A methodology is proposed, which gives information about the contents of ferrimagnetic and antiferromagnetic minerals with different domain structure in soils and sediments. Isothermal remanent magnetisation (lRM) acquired and measured both at room temperature and at low temperature (77K) provides data which define a set of new parameters: ARMlc provides information about the fraction of superparamagnetic ferrimagnetics in the studied samples; parameters G and g, respectively, inform about absolute and relative contents of goethite, and parameters B and b discern the fraction of goethite, in superparamagnetic state. The proposed methodology is applied to the study of cave sediments from the palaeo-anthropological site of Atapuerca.