RT Journal Article T1 Caracterización de la roca madre del Lías y su correlación con el petróleo del Campo de Ayoluengo en base a análisis de cromatografía de gases e isótopos de carbono (Cuenca Vasco-Cantábrica, España) T1 Characterization of the liassic source rock and its correlation with the oil of the Ayoluengo Field on the basis of gas chromatography and carbon isotope analyses (Basque-Cantabrian Basin, Spain) A1 Quesada, Santiago A1 Robles, Sergio A1 Dorronsoro Urrutia, C. AB A genetic relationship has been proved between the Ayoluengo oil and the Liassic source-rock in the Basque-Cantabrian Basin. The oil-source correlation has been established on the basis of different parameters from gas chromatographic analyses of saturated hydrocarbons and carbon isotope analyses of the whole oil/extract. These new data confirms previous sedimentological and geochemical conclusions, which indicate a marine oil-source with a predominance of algallamorphous organic matter deposited under restricted conditions PB Sociedad Geológica de España YR 1996 FD 1996 LK http://hdl.handle.net/10272/11362 UL http://hdl.handle.net/10272/11362 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026