Distribution and Mobility Potential of Trace Elements in the Main Seam of the Most Coal Basin

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Publikace nespadá pod Filozofickou fakultu, ale pod Přírodovědeckou fakultu. Oficiální stránka publikace je na webu muni.cz.
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VÖRÖŠ Dominik GERŠLOVÁ Eva DÍAZ-SOMOANO Mercedes SÝKOROVÁ Ivana SUÁREZ-RUIZ Isabel HAVELCOVÁ Martina KUTA Jan

Rok publikování 2018
Druh Článek v odborném periodiku
Časopis / Zdroj International Journal of Coal Geology
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://www.sciencedirect.com/science/article/pii/S0166516217310054
Doi http://dx.doi.org/10.1016/j.coal.2018.07.005
Klíčová slova Holešice member; Lower bench; Mobility potential; Most Basin; Trace elements
Popis The Most Basin represents a coal basin with a long mining history in the Czech Republic. The majority of palaeo-environmental and geochemical studies have been focused on the upper part of the coal-bearing Most Formation where the coal is generally enriched in As, Cr, Ni, Cu and Zn. This study evaluated the distribution of V, Cr, Ni, Cu, Zn, Pb, Se, As, and Mn from the lower part. Regarding to the transport of inorganic elements into environment, the evaluation of mobility potential was also conducted. The total of 51 samples were collected from the Lower Bench in the Holesice Member. The chemical analyses were performed together with optical microscopy. The X-ray spectroscopy and ICP-MS were used to detect trace element contents in the study set of samples. 4 samples were subjected to the Sequential Extraction Procedure. The prepared leachates were analysed using the ICP-MS method. In total, 13 elements were screened in samples within the study profile. The mode of occurrence is the key factor for identifying a potential source of the trace elements. All evaluated trace elements (V, Cr, Ni, Cu, Zn, Pb, Se, As and Mn) leached most in the oxidisable fraction. On the other hand, As, Mn, Ni, Zn and Cd leached in more mobile fractions, e.g. reducible and acid.
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