Environmental impacts of mining of Ni-Mo black shale-hosted deposits in the Zunyi region, southern China: Preliminary results of the study of toxic metals in the system rock–soil–plant

摘要: The Zunyi region in Guizhou province (southern China) is well known by the occurrences of Mo-Ni-polyelement black shales that are locally mined and processed for Mo. preliminary results our environmentally oriented study covering vicinity Xiao-Zhu mine, Jiepo-Ling Tuan Shan Bao Mo-Ni prospects can be summarized as follows: [1] studied surface soil samples from all three Ni-Mo characterized increased Mo, Ni, As, Cd, Zn Cu concentrations lower Pb values when compared to worldwide averages normal (Bowen 1979). [2] Maximum Mo concentration was found rice stalk maximum As V bulb turnip close mine. Peak Hg were detected corn grain area. Cd accumulates preferentially tobacco leaves where it reaches values. [3] Rice grains area contain anomalous Zn. [4] Corn bear Zn, Cu, Ni.