Petrochemical characterization of the upper Miocene Rodna-Bârgău subvolcanic district (Eastern Carpathians)

Fabio Laiena (a), Lorenzo Fedele (a), Ioan Seghedi (b) & Vincenzo Morra (a)
(a) Dipartimento di Scienze della Terra, dell'Ambiente e delle Risorse, Università degli studi di Napoli Federico II – Via Mezzocannone 8, 80134 Napoli (Italy). E-mail: fabio.laiena@unina.it (b) Institute of Geodynamics, Romanian Academy, 19-21, Jean-Luis Calderon str., Bucharest 020032 (Romania)

In the upper Miocene Rodna-Bârgău subvolcanic district (Eastern Carpathians) four calcalkaline rock groups were identified using a classical petrologic approach: Low-K, High-K, Acid and Sial. These groups have different petrochemical characteristics, which, despite the limited area of outcrop, could be related to different magmatic genesis and evolution processes.

Eastern Carpathians, subvolcanic rocks, calcalkaline magmatic suites.