Abstract
The NW Guizhou Pb-Zn metallogenic district is an important part of the Yunnan – Sichuan - Guizhou Pb-Zn metallogenic province (SYG), and also is one of the important Pb-Zn producers in China. We analyzed the Pb isotopic compositions of sulfides, hosting rocks and basement rocks, the results show that the206Pb/204Pb,207Pb/204Pb, and208Pb/204Pb ratios of sulfides range from 18.029 to 19.900, 15.357 to 17.716 and 38.004 to 40.695, respectively. The206Pb/204Pb,207Pb/204Pb and208Pb/204Pb ratios of hosting rocks and basement rocks range from 18.397 to 19.483, 15.545 to 16.700 and 38.204 to 39.140, respectively. This indicates that the compositions of Pb isotopes of sulfides are basically consistent with that of hosting rocks and basement rocks, so the metals were sourced from various strata of carbonate rocks and underlying rocks.
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