Stud. geophys. geod. Stud. geophys. geod. New insights into asymmetric folding by means of the anisotropy of magnetic susceptibility, Variscan and Pyrenean folds (SW Pyrenees) Oliva-Urcia Belén Gil-Peña Inma Soto Ruth Samsó José María Antolín Borja Pueyo Emilio L. Universidad de Zaragoza 2018 research-article