СПИСАНИЕ НА БЪЛГАРСКОТО ГЕОЛОГИЧЕСКО ДРУЖЕСТВО, год. 80, кн. 3, 2019, с. 39–41 REVIEW OF THE BULGARIAN GEOLOGICAL SOCIETY, vol. 80, part 3, 2019, p. 39–41 Национална конференция с международно участие „ГЕОНАУКИ 2019“ National Conference with international participation “GEOSCIENCES 2019” LA-ICP-MS study of pyrite from the Panicherevo deposit, Sarnena Sredna Gora mountain, Bulgaria LA-ICP-MS изследване на пирит от находище Паничерево, Сърнена Средна гора, България Desislava Racheva1, Dimitrina Dimitrova2 Десислава Рачева1, Димитрина Димитрова2 1 Department of Mineralogy, Petrology and Economic Geology, Sofia University “St. Kliment Ohridski”, 15 Tsar Osvoboditel Blvd., 1504 Sofia, Bulgaria; E-mail:
[email protected]; 2 Geological Institute, Bulgarian Academy of Sciences, Akad. G. Bonchev St., bl. 24, 1113 Sofia, Bulgaria; E-mail:
[email protected] Keywords: pyrite, trace elements, LA-ICP-MS, Panicherevo, Bulgaria. Introduction Methods The Panicherevo deposit is situated in the Eastern Pyrite-bearing mineral assemblages were studied Sarnena Sredna Gora Mountain, northwest of the in polished sections using optical microscopy in town of Nova Zagora. It is hosted by the Kazan reflected light. Minor and trace element composi- granite pluton and the rocks of the Pirdop gneiss tion of pyrite was determined by laser ablation in- complex (Staykov, 1963). The ore mineralization ductively coupled plasma mass spectrometry (LA- occurs as two stockwork bodies with thickness from ICP-MS). NIST SRM 610 glass and MASS1 sulfide 90 up to 140 m, orientated ENW and dipping 35– standards were used for external standardization. A 45° to SSW. They outcrop on the surface and can be total of 113 spot LA-ICP-MS analyses were done traced in depth (Mankov et al., 20171).