Petrological and Geochemical Characterization of a Granitic Rock from the Velence Mountains, Hungary

Abstract

The study investigates the geochemical characteristics of a high-K calc-alkaline, weakly peraluminous sample enriched in LILE, Zr, and REE, without a strong negative Eu anomaly. These features suggest formation in a post-collisional extensional environment during the final stages of the Variscan orogeny. The interpretation is supported by regional geological evidence from the Velence Hills, indicating two-phase intrusive activity in the Late Carboniferous to Early Permian period (271–291 Ma). The sample is closely related to Patka-type granite porphyry and reflects later stages of magma evolution associated with extensional fracturing in a cooling batholith. Overall, it records the transition from syn-collisional to post-collisional tectonics and crustal evolution through progressive melting, differentiation, and crustal thinning.