Abstract:Based on the experimental results from the electron microprobe and inductively coupled plasma mass spectrometry (ICP-MS), analysis and research are made to investigate the distribution characteristics of Cd element in Pb-Zn deposit of Xiaba Mine, meanwhile its occurrence mode is also discussed. The results show that, the content of Cd element of the Pb-Zn mineralization series is higher than the minimum industrial grade as an accompanied valuable element. Cd element mainly occurs in the zinc blende, the content of which has a positive relationship with the content of zinc blende. Besides, Cd element has “high-high-low” and “low-high-low” regulations from south to north and from east to west in the entire deposit area, respectively. The minimization of zinc blende is a co-action of submarine hydrothermal solution and thermal brine, and its origin type should be a mix deposit of submarine hydrothermal solution and thermal brine.