“…They were deposited along the Iberian shelf during the opening of the westernmost Tethys Ocean. These carbonate sediments include a series of volcanic levels mostly made of explosive pyroclastic to epiclastic deposits and rare lava flows, whose mineral composition shows alkaline affinity compatible with an extensional regime [e.g., Gautier, 1968, Ortí and Sanfeliu, 1971, Gómez, 1979, Ortí and Vaquer, 1980, Ortí, 1987, Ancochea et al, 1988, Martínez et al, 1996a,c,d, 1997a, Cortés, 2018.…”