Aplanamiento de la inclinación en arqueomagnetismoestudio de 25 hogares y hornos de Portugal

  1. A. Palencia-Ortas 1
  2. M.L. Osete 1
  3. J. Rodríguez Aranda 1
  4. Jose C. Sastre 2
  5. J. Larrazabal 3
  6. G. McIntosh 4
  1. 1 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

  2. 2 Asociación Zamora Protohistórica
  3. 3 Lab2PT, Universidade do Minho (Portugal)
  4. 4 School of Human and Life Sciences. Canterbury Christ Church University
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Journal:
Geotemas (Madrid)

ISSN: 1576-5172

Year of publication: 2016

Issue Title: IX CONGRESO GEOLÓGICO DE ESPAÑA

Issue: 16

Pages: 865-868

Type: Article

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Abstract

Anisotropy of thermal remanent magnetization (ATRM) affecting archaeomagnetic structures is well known in the case of ceramics and its effect is systematically corrected in quality paleointensity studies performed on them. However, this effect is not systematically analyzed in directional archaeomagnetic studies, so its effects are not usually detected. In the present study we have analyzed 25 domestic hearths and kilns located at three archaeological sites in Portugal. Results show shallowing inclination effects and the importance that ATRM correction has for this type of studies. In these combustion structures it has been detected differences between 2 and 13 degrees in the inclination, on the contrary, magnetic declination has being unaffected. It is therefore intended to emphasize that ATRM can greatly affect the results of directional archaeomagnetic studies, and hence produce strong repercussions when overlooking this fact, both in the construction of paleosecular variation curves as in the archaeomagnetic dating.

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