## 5 Research on Mineral Prospecting Prediction
### Planar Anomaly Characteristics of Geoelectrochemical Extraction Elements  
In total, 462 sampling sites were stratified into subregions according to land-use types (mountainous areas, orchards, and paddy fields) within the study area. The boxplot methodology was systematically applied to iteratively eliminate single-element outliers within each subregion until normal distribution compliance was achieved, thereby establishing representative mean \"\(\tilde{\chi}\)\" values. Subregion-processed datasets were generated by calculating the ratio of raw-element concentrations to their respective subregional means. These normalized values were then ranked in ascending order, with cumulative frequency thresholds of 85%, 92%, and 98%, designated as the lower limits of outer, intermediate, and inner geochemical anomaly zones, respectively (Table 3). It can be observed from the single-element anomaly planar graph (Figure 9) that all six elements exhibit well-defined concentration centers, and the third-level anomaly zones are distinctly delineated. Consequently, in conjunction with the geological conditions of the study area, an analysis of the elemental abnormal characteristics was conducted. The anomaly of element U is situated centrally within the study area, covering an area of 0.15 km\({}^{2}\) with a peak value of 31.74 \(\times\) 10\({}^{-6}\). The anomalous region primarily  
Figure 8: Degree of element dispersion in study area. \begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Element**} & \multicolumn{8}{c}{**Original Data**} & \multicolumn{8}{c}{**Data After Partition Processing**} \\ \cline{2-13}  & **Maximum** & **Minimum** & **Average** & **85\%** & **92\%** & **98\%** & **Maximum** & **Minimum** & **Average** & **85\%** & **92\%** & **98\%** \\ \hline U & 6.72 & 0.03 & 0.89 & 1.59 & 2.16 & 3.12 & 31.74 & 0.10 & 2.96 & 5.43 & 7.42 & 10.13 \\ Th & 11.72 & 0.03 & 0.76 & 1.42 & 1.99 & 3.30 & 36.52 & 0.05 & 1.86 & 3.34 & 4.64 & 6.93 \\ W & 0.56 & 0.00 & 0.07 & 0.09 & 0.10 & 0.18 & 10.83 & 0.02 & 1.22 & 1.52 & 1.85 & 3.31 \\ Mo & 0.60 & 0.01 & 0.05 & 0.08 & 0.10 & 0.14 & 17.71 & 0.14 & 1.47 & 2.06 & 2.54 & 3.77 \\ As & 10.58 & 0.00 & 0.60 & 1.09 & 1.51 & 1.96 & 37.32 & 0.04 & 1.77 & 2.82 & 3.67 & 6.37 \\ Pb & 82.48 & 0.92 & 11.58 & 20.92 & 27.14 & 34.92 & 16.75 & 0.08 & 1.60 & 2.54 & 3.24 & 5.20 \\ \hline \hline \end{tabular} Note: The unit for element content is \(\mathrm{\SIUnitSymbolMicro g}\)/g.  
\end{table} 
Table 3: Elemental anomaly zoning values in the study area. corresponds to Quaternary sediments. This area is traversed by three northeast-oriented faults and one northwest-oriented fault. Notably, the concentrated centers in the eastern portion of the anomaly exhibit a beaded distribution pattern, which aligns well with the inferred orientation of the faults. As the primary ore-forming element, U undoubtedly serves as a reliable indicator of uranium ore bodies. However, considering the regional geochemical characteristics, it is evident that the western part of the study area comprises the Yuechengling granite body, where U contents in the uranium-bearing layer are typically lower than those in moderately acidic granite bodies [44]. Consequently, due to the influence of high-uranium granite bodies, the indicative significance of the U anomaly in this study area may not be singular. The anomalous distributions of the As and Pb elements exhibit similarities and extend in a north-to-south orientation. The main body of the anomaly is situated in the central part of the study area. The anomalous region of As covers an area of 0.13 km\({}^{2}\), with a peak value of 37.32 \(\times\) 10\({}^{-6}\). The concentration center is located at the intersection of inferred NE-trending and NW-trending faults, and the anomaly remains open to both the east and west regions of the study area. As migrates in hydrothermal fluids along faults in the form of As-S complexes (e.g., AsS\({}_{3}\)\({}^{-}\)) accompanied by U\({}^{6+}\).