Chemické složení sfaleritů z hydrotermálních žil v horninách spodního karbonu Nízkého Jeseníku a kry Maleníku
| Title in English | Chemical composition of sphalerites from hydrothermal veins in rocks of the Lower Carboniferous of the Nízký Jeseník Upland and the Maleník block |
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| Authors | |
| Year of publication | 2004 |
| Type | Article in Periodical |
| Magazine / Source | Acta Mus. Moraviae, Sci. geol. |
| MU Faculty or unit | |
| Citation | |
| Field | Geology and mineralogy |
| Keywords | Bohemian Massif; Moravo-Silesian Palaeozoic; sphalerite; chemistry; zonality |
| Description | A chemical composition of sphalerites from polymetallic veins occured in the Nízký Jeseník Upland and the block of Maleník have been studied. Veins are developed mainly in greywackes, less in siltstones, shales and conglomerates of the Lower Carboniferous. Sphalerites are typical by the low content of Fe, mostly between 0.38 - 0.83 wt. % and lower content of Cd (mostly between 0.17 - 0.35 wt. %). The content of Cu (0.00 - 0.16 wt. %) is more important among others minor elements as Mn, In and Ag. An oscillatory zonation of sphalerites seems to be caused by a substitution of Fe, Cu and also Cd in a crystal lattice. Relatively the highest content of Fe have sphalerites from proximity of marginal fault of the Palaeozoic of the Nízký Jeseník Upland. |
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