RT Journal Article T1 Resistencia al rebote en materiales de la Formación Casaio (Ordovícico del NO de España) T1 Rebound strength on Casaio Formation rocks (Ordovician from thé AIW of Spain) A1 Rodríguez Sastre, M. A. A1 Gutiérrez Claverol, M. A1 Torres Alonso, M. A1 Rodríguez Bouzo, M. AB 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 PB Sociedad Geológica de España YR 2004 FD 2004 LK http://hdl.handle.net/10272/8958 UL http://hdl.handle.net/10272/8958 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026