The Santa Eulália Plutonic Complex (SEPC) is a calc-alkaline granitic body located in the
northern part of the Ossa Morena Zone, composed by a medium- to coarse-grained pink granite (G0
group) involving large elongated masses of mafic (gabbroic) to intermediate (granodioritic) rocks, M group, and a central gray monzonitic granite (G1 group) which present dominant medium granular
facies. A multidisciplinary study, including petrophysical, AMS and IRM measurements, and geochemical
data, elemental and isotopic (Nd and 18O), point out differences in magnetic behaviour, magnetic
lineations patterns and geochemical features, reflecting distinct petrogenetic processes at the level of the
magmatic sources and evolution, as well as the emplacement mechanisms of M, G0 and G1 facies
associated in the SEPC
