Shear bands are geologic structures widely used as kinematic indicators. They have been studied by different
authors and recently classified, but they have not been used to analyze deformation. This work presents an
analytical model to estimate deformation from shear bands. It takes in account four parameters easily
measurable in the field. The applicability and accuracy of this model has been successfully tested in numerical
simulations using BASIL, a finite elements method. It, has been applied, as an example, to a real field case
study in Rabassers de Dalt outcrop (Cap de Creus, Girona, Spain
