Resumen de Resistencia al rebote en materiales de la Formación Casaio (Ordovícico del NO de España)

M. A. Rodríguez Sastre, M. Gutiérrez Claverol, Miguel Torres Alonso, L. Rodríguez Bouzo

• Several types of Ordovician Rocks (Casaio Formation in Truchas Synclinal) have been tested with the Schmidt hammer, model L. The compressive strength of these rocks has been estimated by the rebound values "in situ" and "in rock blocks" as very different from low to very high in order to its weathering and cleavage position.