A synthetic model of cracking in Santos Morcillo Lake, central Spain

This article proposes a synthetic model to explain the cracking process observed in Santos Morcillo Lake, Ruidera Lakes Natural Park, central Spain. The model was obtained by means of a comprehensive review of the available data, supplemented with an electrical tomography survey and a field and laboratory investigation. The system’s structure has been condensed into a microscale model based on a sediment column connecting the crust of the lake bottom with the Mesozoic substrate. The deformation of both this column and the crust covering it allows for a consistent explanation of the behaviors observed. It also provides a simple reproduction of the crack opening data. Hence the model has been used to define guidelines for the safe use and management of this protected space.