# Trace Elements and Mineralogy of Upper Permian (Zechstein)
## 6 Results
### Trace Elements Study
#### 6.2.3. Potash-Bearing Deposits of PZ3 Cyclothem  
Presented statistic parameters of trace element content in the potash-bearing deposits of the PZ3 cyclothem (Table 7) were calculated for the analytical results of 201 samples taken from salt domes Damaslawek, Gora, Klodawa, and Mogilno. The reported statistics of analytical data represent 193 new samples (all trace elements) supplemented with archival results of selected trace elements: six samples (Br, Cd, Co, Fe, I, Mn, Ni and Zn detected [51]) and two samples (only Br [52]). Contents of such elements as Be, I, Se, Sn, and Tl are at the value of their detection limits (!0.1 to!50 mg/kg; Table 7). Very low and low content (mean and median: 0.09-0.47 mg/kg) characterise the following elements: Ag, Cd, Ce, Co, Cs, Ga, La, Mo, Pb, Sb, and U. Higher content (mean and median: 1-5 mg/kg) characterises eight elements: As, Ba, Cr, Cu, Li, Ni, V, and Zn; other three elements, Mn, Rb and Ti, are more abundant (3-25 mg/kg). The highest content is characteristic of bromine (Br: 151-308 mg/kg), iron (Fe: 31-231 mg/kg), and strontium (Sr: 40-102 mg/kg). The last two elements are mainly connected with the insolubles (1.58-2.12%), composed of anhydrite, chlorites, clay minerals, hematite, and pyrite. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Trace Elements**} & \multicolumn{6}{c}{**Statistic Parameters**} \\ \cline{2-7}  & **n** & **Min.** & **Max.** & **Arithmetic** & **Geometric** & **Median** \\ \hline
**Ag** & 195 (190) & \textless{}0.1 & 0.1 & 0.1 & 0.1 & 0.1 \\
**As** & 195 (184) & \textless{}1 & 10.00 & 3.91 & 3.12 & 3.00 \\
**Ba** & 195 (151) & \textless{}1 & 28.69 & 4.71 & 2.94 & 2.2 \\
**Be** & 195 (15) & \textless{}0.3 & \textless{}0.3 & \textless{}0.3 & \textless{}0.3 & \textless{}0.3 \\
**Br** & 189 & \textless{}50 & 1850 & 308 & 195 & 151 \\
**Cd** & 201 & \textless{}0.05 & 0.6 & 0.23 & 0.16 & 0.12 \\
**Ce** & 195 & \textless{}0.05 & 2.23 & 0.38 & 0.2 & 0.16 \\
**Co** & 200 & \textless{}0.05 & 2.5 & 0.28 & 0.15 & 0.1 \\
**Cr** & 195 & \textless{}1 & 3.77 & 1.76 & 1.65 & 1.59 \\
**Cs** & 195 & \textless{}0.1 & 1.4 & 0.45 & 0.31 & 0.25 \\
**Cu** & 195 & \textless{}1 & 6.5 & 3.98 & 3.74 & 3.88 \\
**Fe** & 200 & 6.06 & 8455.00 & 230.55 & 52.15 & 31.4 \\
**Ga** & 195 & \textless{}0.1 & 0.6 & 0.26 & 0.22 & 0.2 \\
**I** & 190 & \textless{}50.0 & \textless{}50.0 & \textless{}50.0 & \textless{}50.0 & \textless{}50.0 \\
**La** & 195 & \textless{}0.05 & 1.11 & 0.25 & 0.16 & 0.14 \\
**Li** & 195 & \textless{}0.5 & 16.8 & 3.13 & 2.66 & 2.9 \\
**Mn** & 200 & \textless{}1 & 180.00 & 13.57 & 5.88 & 3.64 \\
**Mo** & 195 & \textless{}0.05 & 5.27 & 0.15 & 0.1 & 0.09 \\
**Ni** & 200 & \textless{}0.5 & 10.8 & 1.5 & 1.14 & 1.0 \\
**Pb** & 195 & \textless{}0.1 & 1.5 & 0.2 & 0.18 & 0.2 \\
**Rb** & 195 & \textless{}0.5 & 98.6 & 10.93 & 4.6 & 4.2 \\
**Sb** & 195 & \textless{}0.05 & 0.42 & 0.13 & 0.11 & 0.11 \\
**Se** & 195 & \textless{}2 & \textless{}2 & \textless{}2 & \textless{}2 & \textless{}2 \\
**Sn** & 195 & \textless{}0.5 & \textless{}0.5 & \textless{}0.5 & \textless{}0.5 & \textless{}0.5 \\
**Sr** & 195 & 1.00 & 972.5 & 102.03 & 40.34 & 40.43 \\
**Ti** & 195 & \textless{}1 & 531.00 & 24.66 & 10.66 & 7.8 \\
**Tl** & 195 & \textless{}0.1 & \textless{}0.1 & \textless{}0.1 & \textless{}0.1 & \textless{}0.1 \\
**U** & 195 & \textless{}0.05 & 0.19 & 0.1 & 0.09 & 0.09 \\
**V** & 195 & \textless{}1 & 5.00 & 2.02 & 1.81 & 1.62 \\
**Zn** & 200 & \textless{}1 & 7.00 & 2.12 & 1.82 & 1.58 \\ \hline \hline \end{tabular}  
n—number of analysed samples; (...)—number of samples with element content lower than detection limit.  
\end{table} 
Table 7: Statistic parameters of trace element content in the potash-bearing deposits of the PZ3 cyclothem in Poland.