Soto, RuthLarrasoaña, Juan C.Beamud Amorós, ElisabetGarcés Crespo, Miguel2020-06-042020-06-0420161631-0713https://hdl.handle.net/2445/164275The results of anisotropy of magnetic susceptibility analyses of 19 sites carried out on magnetostrigraphically-dated, Lower to Middle Miocene (20.4 to 13.7 Ma) 'non-deformed' mudstones from the central part of the Ebro basin reveal the presence of a subtle tectonic overprint lasting at least until the Langhian (Middle Miocene) in the southern Pyrenean foreland. Magnetic ellipsoids show a sedimentary fabric in 42% of sites and a weak and well-defined magnetic lineation in 47% and 11% of sites. The magnetic lineation is roughly oriented around the east-west direction, compatible with a very weak deformation occurring there and related to the north-south compression linked to the convergence between Europe, Iberia and Africa during the Early-Middle Miocene. A slight variation of the magnetic parameters Km, Pj, and T exists through time, probably due to changes in the sedimentary conditions in the basin.11 p.application/pdfeng(c) Elsevier Masson SAS, 2016MagnetismeMiocèEbre, Conca de l'Deformació de les roquesMagnetismMioceneEbro River WatersheadRock deformationinfo:eu-repo/semantics/article6590042020-06-04info:eu-repo/semantics/openAccess