Esther Izquierdo-Llavall

Palaeomagnetism and magnetic fabrics of the Late Palaeozoic volcanism in the Castejón-Laspaúles basin (Central Pyrenees). Implications for palaeoflow directions and basin configuration

The authors thank Cristina Garcia and Teresa Roman for her help during field and laboratory work and Manuel Tricas for the preparation of thin-sections. This work forms part of the research projects CGL2009-08969 and CGL2006-05817 (Spanish Ministry of Education) and is included in the objectives of the pre-doctoral grant AP-2009-0554 (Esther Izquierdo) (Programa de formacion de profesorado universitario, Spanish Ministry of Education). Funding from the Instituto de Estudios Altoaragoneses is also acknowledged. BOU acknowledges the JAEDOC postdoctoral programme financed with ESF. The authors acknowledge the careful and constructive revisions by B. Henry and an anonymous reviewer.

Anisotropy of magnetic susceptibility of the Pyrenean granites

ABSTRACT 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.