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Isotopic composition of lead in Czech coals
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SYSNO ASEP 0321285 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Isotopic composition of lead in Czech coals Překlad názvu Izotopové složení olova v českém uhlí Tvůrce(i) Mihajlevič, M. (CZ)
Ettler, V. (CZ)
Strnad, L. (CZ)
Šebek, O. (CZ)
Vonásek, F. (CZ)
Drahota, P. (CZ)
Rohovec, Jan (GLU-S) RID, SAIZdroj.dok. International Journal of Coal Geology. - : Elsevier - ISSN 0166-5162
Roč. 78, č. 1 (2009), s. 38-46Poč.str. 9 s. Forma vydání WWW - WWW Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova lead ; coal ; isotopes ; 206Pb/207Pb ; mineral composition ; speciation Vědní obor RIV DD - Geochemie CEZ AV0Z30130516 - GLU-S (2005-2011) UT WOS 000264263200004 EID SCOPUS 59649104374 DOI 10.1016/j.coal.2008.09.018 Anotace The content, forms of bonding and isotopic compositions of lead (Pb) were studied on selected coal samples from the Czech Republic. Lead in most samples of bituminous and brown coal is mobilized by 3 M HCl. Thus, Pb could be bonded in carbonates and oxides and also to sulphides present in the coal. Bituminous coal contains an average of 33 mg/kg Pb, while brown coal contains an average of 8.9 mg/kg Pb. The 206Pb/207Pb ratio varies in the range 1.167–1.234 for bituminous and 1.172–1.24 for brown coal. No inverse proportionality of the Pb content and the 206Pb/207Pb ratio was observed in the studied samples and, thus, the Pb content in most samples is a result of the combination of lithogenic and ore Pb. It was not possible to demonstrate any statistical dependence between the operational defined speciation of Pb, the mineralogical composition and the Pb isotopic composition. Pracoviště Geologický ústav Kontakt Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Rok sběru 2009
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