Determination of Geochemical Anomalies in Stream Sediments of Zaylik Region (East Azerbaijan) Based on the Element Distribution Pattern

The Zaylik mineralization zone includes andesitic volcanic rocks which is the basis for other rocks in the area. The base of these andesitic rocks is yet to be characterized, but pyroclastic deposits and acidic to basic lava flows have overlaid them on the top. The results of statistical evaluations and distribution patterns of  As, Cu, Ag, Au, Zn, Sb, Pb, and Mo, on stream sediments showed that the most significant geochemical anomalies were related to copper, lead, zinc, and gold.These anomalies appear to be consistent with the siliceous veins and caps and alteration zones in the region. Frequency histograms of Au, Pb, Zn, Mo, and Cu were mostly abnormal and showed positive skewness. The table of correlation coefficient and cluster decomposition showed positive correlations between Mo and As and also between Pb and Zn at a confidence level of 99%. Moreover, at 95% confidence, positive correlations were observed between Pb and As and also between Zn and Cu, while an inverse correlation was observed between Zn and Mo.