Mass-spectrometric examinations (δ34S) of different baryte, pyrite, galena, sphalerite samples from the ore occurrences in the mixed series at Nežilovo village, Macedonia

  • Simeon Jančev Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University, Ruģer Bošković 16; 1000 Skopje, Republic of Macedonia
  • Biljana Karamačoska Macedonian Museum of Natural History, Blvd. Ilinden 86, 1000 Skopje, Republic of Macedonia

Abstract

In this paper we present the results of the δ 34S-mass spectrometric examinations of different baryte, pyrite, galena and sphalerite samples from the ore occurrences in the mixed series at Nežilovo village, Macedonia. The examined baryte samples (fine-grained and coarse-grained generations in total number of 16 samples) show a very narrow span of the δ 34S (+22.5 to +28.3 ‰ for the fine-grained barytes and  +21 to +26 ‰ for the coarse-grained baryte generations). These δ 34S values for the examined barytes samples show a homogenous S-source probably of marine origin—marine sulphates. In five samples of different sulphide minerals: galena, sphalerite, cleiophane (from baryte schists), pyrite (from cymrite-quartz schists) were found very close δ 34S values, varying of +3.3 ‰ to +11.6 ‰. These values for examined sulphides show probably an endogenous-juvenile origin representing volcanic sulphides. Examined pyrite sample with hexahedral forms (from the albite-augen gneisses) shows δ 34S values of -10.5 ‰, being typical for S-source of sedimentary origin.

Published
Dec 21, 2017
How to Cite
JANČEV, Simeon; KARAMAČOSKA, Biljana. Mass-spectrometric examinations (δ34S) of different baryte, pyrite, galena, sphalerite samples from the ore occurrences in the mixed series at Nežilovo village, Macedonia. Acta Musei Macedonici Scientiarum Naturalium, [S.l.], v. 20, n. 1, p. 9-14, dec. 2017. ISSN 2545-4587. Available at: <http://acta.musmacscinat.mk/index.php/acta/article/view/2>. Date accessed: 11 aug. 2022.