RT Journal Article T1 Evolución megasecuencial de los materiales oligo-miocenos del sector septentrional de la Cuenca del Ebro (provincia de Huesca) T1 Megasequential evolution of Oligocene-Miocene materials of the northern sector of the Ebro Basin (Huesca to province) A1 Luzón, Aránzazu AB The outcropping continental detrital formations in the northern margin of the Ebro Basin between the Sierras Exteriores Aragonesas and the Sierras Marginales Catalanas have been analyzed. These materials form part of the classic Peraltilla and Sarinena Formations. This study demonstrates the ambiguity which exists in delimiting of both formations. The study of the megasequential evolution of the materials may provide new criteria to precise the limit between them PB Sociedad Geológica de España YR 1997 FD 1997 LK http://hdl.handle.net/10272/10309 UL http://hdl.handle.net/10272/10309 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026