Journal of Maps (Nov 2017)

Anisotropy of magnetic susceptibility of the Pyrenean granites

  • Manuel Porquet,
  • Emilio L. Pueyo,
  • Teresa Román-Berdiel,
  • Philippe Olivier,
  • Luis A. Longares,
  • Julia Cuevas,
  • Javier Ramajo,
  • the Geokin3DPyr working group by alphabetical order,
  • Borja Antolín,
  • Aitor Aranguren,
  • Jean Baptiste Auréjac,
  • Jean-Luc Bouchez,
  • Antonio M. Casas,
  • Yoann Denèle,
  • Gerard Gleizes,
  • Asier Hilario,
  • Esther Izquierdo-Llavall,
  • Dennis Leblanc,
  • Belén Oliva-Urcia,
  • Vicente Santana,
  • José M. Tubía,
  • Nestor Vegas

DOI
https://doi.org/10.1080/17445647.2017.1302364
Journal volume & issue
Vol. 13, no. 2
pp. 438 – 448

Abstract

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In this paper, we report on a compilation of more than 2200 sites (more than 10,000 individual measurements) where anisotropy of magnetic susceptibility (AMS) was studied in granites from the Variscan Pyrenees. The standardization and homogenization of this information has allowed us to produce three Main Maps that synthesize all the information related with the AMS of the Pyrenean granites. We also describe the problems found during the construction of the database (variable geo-positioning, different published information, etc.). The information derived from 21 granite bodies, the database, and the synthesis maps (magnetic susceptibility, Km, and the orientation of the magnetic foliation, plane perpendicular to k3, and of the magnetic lineation, k1) allow us to see for the first time a complete image of this important kinematic and petrographic indicator.

Keywords