Faculty of Natural and Technical Sciences, University "Goce Delcev"-Stip, R. Macedonia
Prof. d-r Todor Serafimovski was born on March 3rd, 1956 in Zletovo, Republic of Macedonia. He finished his undergraduate studies at University of Belgrade, Faculty of Mining and Geology in 1978. The master studies were finished at the University of Belgrade, Department of Geology, Faculty of Mining and Geology in 1982. He defended his PhD thesis “Metallogeny of the Lece-Halkidiki Zone” at the University of Skopje, Faculty of Mining and Geology in 1990. From 1979 he works at the Universities in Macedonia and more than 30 years he is Head of the Mineral Deposits Department. His professional interests are mineral deposits, metallogeny, ore geochemistry, ore mineralogy, instrumental methods etc. He participates in a lot of European and International projects in the domain of Mineral Deposits and he has more than 330 publications with 16 University books and monographs and a lot of scientific projects. He is active professor at the Faculty of Natural and Technical Sciences, University “Goce Delcev”-Stip, Republic of Macedonia
Cu-Au minerals and transformed mineral phases in the oxidation zone of the Plavica ore deposit
The Plavica Cu-Au mineral deposit occupies one important volcanoclastic mineralized area in the eastern part of the Republic of Macedonia. From the geological point of view, the terrain is typical volcanic (ignimbrite, lava of dacite-andesite composition, volcanic tuffs, dacite, andesite, latite etc.) with secondary quartzite and high level of rock alterations as silicification, alunitization, jarozitization, sericitization etc. From the metallogenic point of view Plavica deposit belongs to the famous Kratovo-Zletovo ore district, which is part of the Lece-Chalkidiki metallogenic zone that is within the Serbo-Macedonian metallogenic province. These metallogenic units have direct connection with the Tethys-Eurasian metallogenic belt.
The Plavica deposit is one complex mineralized system with porphyry copper mineralization, typical quartz-enargite veins with copper and shallow epithermal gold deposit, high-sulfidation type. From mineralogical point of view there is a big mineral assemblage group with more than 70 minerals. Part of them belong to the oxidation zone (Fe-oxide and Fe-hydroxide, Au, Ti minerals etc.). After that zone of secondary sulfide enrichment occurs with covellite, chalcocite, selligmanite, luzonite, famatinite etc., and in primary mineral group dominates chalcopyrite, pyrite, enargite, bornite, native gold, tetrahedrite, tennantite, sphalerite, galena etc.