Abstract Anisotropy of magnetic susceptibility can provide insights into strain distribution in models simulating fold-and-thrust belts. Models with layers sand and magnetite mixture shortened above adjacent decollements high low friction, are used to study the effect decollement friction on fabric. Above high-friction decollement, an imbricate stack produced a ‘tectonic’ fabric foliation paral...

Abstract The southern Patagonian Andes record Late Cretaceous–Paleogene compressional inversion of the Rocas Verdes backarc basin (RVB) and development fold-thrust belt (FTB). A ductile décollement formed in middle crust accommodated underthrusting, thickening, tectonic burial continental margin (Cordillera Darwin Metamorphic Complex (CDMC)) beneath RVB. We present new geologic mapping, quartz ...