Primary vs. secondary curved fold axes: Deciphering the origin of the Ait Attab syncline (Moroccan High Atlas) using paleomagnetic data - Moussaid, B.; Villalain, J. J.; Casas-Sainz, A.; El Ouardi, H.; Oliva-Urcia, B.; Soto, R.; Roman-Berdiel, T.; Torres-Lopez, S.; (Journal Of Structural Geology, 2015)