Resumen de Composición mineral del volcanismo jurásico (pre-Bajociense medio) en la Sierra de Javalambre (Cordillera Ibérica, Teruel):: datos preliminares.

Rosa María Martínez González, Marceliano Lago San José, Ramon Vaquer Navarro, José Ignacio Valenzuela Ríos, Enrique Arranz Yagüe

• The study of olivine, plagioclase, clinopyroxene and opaque minerals from volcanic rocks, which are included in volcaniclastic deposits o f pre -m id d le Bajocian age from the Sierra o f Javalambre (Iberian Chain, Teruel), shows that this volcanism has an alkaline affinity. The compositional trend of this alkaline magma is recognized by studying the clinopyroxene composition