Traces of hydrocarbon migration in the Central Mecsek Mountains

Abstract

Hydrocarbon-bearing fluid inclusions in fracture-filling calcite and void-filling dolomite and quartz cement phases in Middle Triassic carbonates at Árpádtető, in the Central Mecsek Mountains indicate that hydrocarbon migration
occurred in the area. Petrographic observations suggest the presence of at least two hydrocarbon fluid generations in the host void-filling quartz crystals at Árpádtető representing multiple events of hydrocarbon migration of different
composition and/or different source rocks.