RT Journal Article T1 Trazas de minerales evaporíticos en el Albiense superior de Bi Haizpeak/ Dos Hermanas (Aralar, Nafarroa): implicaciones paleotectónicas T1 Evaporitic traces in the Upper Albian of Bi Haizpeak / Dos Hermanas (Aralar, Nafarroa): palaeotectonic implications A1 Lertxundi, D. A1 García Mondéjar, Joaquín AB Pétrographie analysis of a thin (50 cm) bed from the Upper Albian Bi Haizpeak/Dos Hermanas (Aralar) unit, has shown signs and traces of evaporitic minerals. These features mainly consist of gypsum inclusions, micritic feplacements of gypsum crystals, and authigenic quartz cristals with anhidrite and gypsum inclusions. This is the first reference to Albian evaporites in the Basque-Cantabrian Basin, wihch, on the other hand, were formed in a general humid climate. We attribute these sulphate minerals to anomalous sedimentary conditions, related to a pulse of local ascension ofKeuper salt through synsedimentary faults PB Sociedad Geológica de España YR 1997 FD 1997 LK http://hdl.handle.net/10272/10602 UL http://hdl.handle.net/10272/10602 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 2 jun 2026