@ARTICLE{Parzentny_Henryk_R._Initial_2020,
 author={Parzentny, Henryk R. and Róg, Leokadia},
 volume={vol. 65},
 number={No 4},
 journal={Archives of Mining Sciences},
 pages={723-736},
 howpublished={online},
 year={2020},
 publisher={Committee of Mining PAS},
 abstract={Knowledge of the way in which minor and trace elements occur in coal is one of the most important geochemical indicators of coal quality. The differences between the methods of binding elements in coal in each coal seam and the variability of this feature of coal in the basin profile have not been discussed so far. These coal features were identified in a group of selected coal seams (209, 401, 405, 407, 501, 504, 510, 615, 620) in the Upper Silesian Coal Basin (USCB). At the same time, the differences in the role of identified mineral and maceral groups in concentrating specific elements in coal is highlighted. Identical or similar tendencies of changes in the way in which As and V, Ba and Rb, Co and Pb, Co and Zn, Mn and Pb, Pb and Zn, Co and Rb, and for Cr and Cu occur in the coal seams in the USCB profile was found. Changes in the mode of occurrence of As and Pb in coal in the USCB profile were probably influenced by carbonate mineralization. The changes in the mode of occurrence of Mni and Pb in the coal were probably determined by dia and epigenetic sulfide mineralization, while the content of Ba, Cr, Rb, Sr, and V in coal from these deposits was affected by clay minerals. It was observed that the greater the degree of the carbonization of the organic matter of coal, the lower the content of As, Mn and Pb in coal and the higher the content of Ba and Sr in coal.},
 type={Article},
 title={Initial Assessment of Variability in the Modes of Occurrence of Some Trace Elements in Coal Seams with Vertical Profiles in the Upper Silesian Coal Basin in Poland},
 URL={http://czasopisma.pan.pl/Content/117230/PDF/Archiwum-65-4-01-Parzentny.pdf},
 doi={10.24425/ams.2020.134143},
 keywords={mode of occurrence, trace elements, variability, bituminous coal, USCB},
}