## 5 Results and Discussion
### Major Elements  
The average values of the mass fractions of major, rock-forming elements excepting for MgO and CaO showed to be relatively closer to UCC [17], NASC, [18], PAAS [8], or other sedimentary systems such as SMWR [19], or Average World Suspended Sediments AWSS [20] (Table 1). Silica represents the major constituent of all investigated samples, its mass fraction of 34.64 wt.% to 84 wt.% (62.8 \(\pm\) 11.9 wt.% average) for sediments and of 31.53 wt.% to 75.12 wt.% (59.4 \(\pm\) 8.8 wt.% average) for soils. On discriminating diagrams Na\({}_{2}\)O + K\({}_{2}\)O vs. SiO\({}_{2}\) (Figure 4a), SiO\({}_{2}\)-Al\({}_{2}\)O\({}_{3}\)-Na\({}_{2}\)O + K\({}_{2}\)O + CaO (Figure 4b) and K\({}_{2}\)O-Al\({}_{2}\)O\({}_{3}\)-Na\({}_{2}\)O + CaO (Figure 4c) the composition of investigated materials points towards a somewhat felsic to intermediate origin with a small contribution of mafic material as was the case in the Pete intrusion [5; 24] (Table 1). Its average mass fraction was closer to the UCC [17] but with only a few exceptions in the sediments collected in the vicinity of the Anzob tunnel, Sarvoda 1, and Sarvoda 2 as well as soils from Chore 1 and 3, Djidijkurt 1, Obi Sara 1, Saritage 2, as well \begin{table}
\begin{tabular}{c c c c c} \hline \hline  & \multicolumn{4}{c}{**ANOVA Two-Sample Test**} \\ \hline
**Elements** & \begin{tabular}{c} **T-Test** \\ **Equal Mean** \\ \end{tabular} & \begin{tabular}{c} **F-Test** \\ **Equal Variance** \\ \end{tabular} & \
\begin{tabular}{c} **[PERSON]–Whitney** \\ **Equal Median** \\ \end{tabular} &
\begin{tabular}{c} **Anderson–Darling** \\ **Equal Distribution** \\ \end{tabular} \\ \hline Major elements & 0.99 & 0.87 & 1.00 & 1.00 \\ Trace elements & 0.77 & 0.59 & 0.73 & 0.97 \\ \hline \multicolumn{4}{c}{Major elements: SiO\({}_{2}\), TiO\({}_{2}\), Al\({}_{2}\)O\({}_{3}\), FeO, MnO\({}_{2}\), MgO, CaO, K\({}_{2}\)O, Na\({}_{2}\)O} \\ Trace elements: Sc, V, Cr, Co, Ni, Zn, As, Br, Rb, Sr, Zr, Sb, Cs, Ba, La, Ce, Nd, Sm, Eu, Gd, Tb, Tm, Yb, Hf, Ta, W, Hg, Th, U \\ \hline \hline \end{tabular}
\end{table} 
Table 2: The results of two-sample ANOVA tests illustrating the probability the major and trace elements being closer in soils and sediments. The results are based on the average mass fractions values reproduced in Table 1.  
Figure 3: The sediment to soil ratio of mass fractions of investigated elements (red line) as well as the corresponding standard deviation (gray background) (**a**); and a biplot illustrating the reciprocal distribution of investigated elements in sediments and soils excepting the Zn, As, Sb and Hg, i.e., elements whose mass fractions in some places exceeds the UCC [17] ones by two to three orders of magnitude (**b**) (Table 1) [36]. [PERSON]’s correlation coefficient of 0.837 at \(p\) < 0.01.  
as Sarvoda 1 to Sarvoda 7 (Figures 1a and A1). In all locations, the lower content of silica is due to an increased content of calcium oxide of which mass fractions varied between 26 and 47 wt.% (Table 1). Aluminum oxide showed in sediments an average mass fraction 9.91 \(\pm\) 3.2 wt.%, smaller than the soils' one of 12.92 \(\pm\) 3.7 wt.%, both of them lower than the UCC [17] and NASC [17] (Table 1). At the same time, the sodium oxide has an average mass fraction in sediments and especially in soils smaller than the corresponding UCC [17] (Table 1), suggesting a low content of plagioclase, and by consequence predominance of a sedimentary substrate (Figure 4a,b). This finding is illustrated by the discriminating diagram SiO\({}_{2}\)-Al\({}_{2}\)O\({}_{3}\)-Na\({}_{2}\)O + K\({}_{2}\)O + CaO (Figure 4b) where some points are shifted towards lower SiO\({}_{2}\) content, which could be due to an increased content of CaO whose mass fraction in some places reached 28% [36]. It is worth remarking that CaO correlates positively only with MgO, in sediments as well as in soils (Table A3), suggesting the presence of dolomite CaMg(CO\({}_{3}\))\({}_{2}\).