Estimación de la composición del manto subcontinental en eludcentro de España a partir de los materiales básicos hercínicos y post-hercínicos del Sistema Central Español

摘要

Basic magmatism in Central Spain occur sporadically during a long period of ca. 140 Ma. The scarce dataudset of incompatible trace element geochemistry and initial isotopic ratios (Sr, Nd) on mantle-derived basicudmagmatism shaw that subcontinental mantle in Central Spain is markedly heterogeneous. Depleted mantleudcompositions are not registered and basic magmatism f1uctuate between OIB and BSE values, being crustaludinvolvement (via recycling in mantle sources or by hybridization at emplacement levels) an importantudcontribution ta some basic derivates.