Porphyry Cu mineralization related to the small Tertiary volcanic intrusions in the Bucim ore deposit, Eastern Macedonia

摘要

The paper presents data about the geology, geochemistry, structure, genesis and specific features of the Bucim porphyry Cu deposit which is actively mined in Macedonia. The porphyry mineralization (0.3 % Cu, 0.3-0.5 ppm Au) is spatially and temporarily associated with Tertiary subvolcanic intrusions of latitic and latitic-andesitic composition. The intrusions occurred during Oligo-Miocene time (24 to 27 Ma), a period of intensive tectono-magmatic and ore-forming processes.