Las diaclàsas E-W y NW-SE fen el sector central de la Cuenca del Ebro. Relation con el campo de esfuerzos Neógeno

Abstract

Thire are three regional joint sets in the central Ebro, basin. The southern part is. dominated by a primary N-S striking joint set and a secondary E-W set. In the nortnern part, the primary joint set strikes NW-SE Detailed outcrop observations where the three sets do coexist suggest that the E-W set is the result of stress perturbation originated by the previous N-S set over the extensionat NE-SW stress field responsible for the development of the NW-SE joints in the northern area