Igneous Protoliths of the Biharia Lithotectonic Assemblage: Timing of Intrusion, Geochemical Considerations, Tectonic Setting

Abstract

The oldest U/Pb isotopic age data for the Apuseni Mountains were determined from the Biharia meta-igneous assemblage. Two granitoid bodies yielded 489,6 ± 6,9 Ma and 502 ± 4,2 Ma ages. The geochemical data suggest an island arc tectonic setting for the Biharia meta-igneous protholits