RT Journal Article T1 Variación del patrón de diaclasas a lo largo de la serie neógena de la Sierra de Sigena (Huesca): Posible relación con el campo de esfuerzos y su perturbación T1 Variation in the joint pattern along the neogene series of the Sierra de Sigena (Huesca): Possible relationships with the stress Field and its deflection A1 Arlegui, L. E. AB Neotectonic joints in the Ebro basin strike uniformly NNW-SSE, perpendicular or nearperpendicular to the direction of <33 in the moment it developed. Within the Sierra de Sigena there are joints with anomalous strikes. They show a vertical evolution becoming more similar to the regional fracture pattern as higher in the slope they appair. In the middle portion of the slope this set coexists with the regional-striking joints We interpret this joint distribution as a consequence of stress deflection caused by major faults in the basament, which shows possible attenuation upwards PB Sociedad Geológica de España YR 1992 FD 1992 LK http://hdl.handle.net/10272/16406 UL http://hdl.handle.net/10272/16406 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026