ABSTRACT

The amounts of strontium and calcium in the lead-bearing barite from hydrothermal solution were found to increase with the lead content of the barite. This fact suggests that the difference between D^M_PbSO4 = [M/Pb]_PbSO4/[M/Pb]_aq and D^M_BaSO4 = [M/Ba]_Baso4/[M/Ba]_aq primarily contributes to the increment of both trace elements in the barite, where D^M_PbSO4 and D^M_BaSO4 represent the distribution coefficients of M which refers to strontium or calcium; [M/Pb] and [M/Ba] indicate the M-lead and M-barium weight ratios, respectively, in sulfate and aqueous solution.