Laserfiche WebLink
37 <br /> Table 5. Ranges in Concentrations of the Major Elements <br />• and Base Metals in Mine Drainages from Three <br /> Mining Di stricts in the Front Range Mineral Belt <br /> of Colora do. Pb and Cd concentrations are in <br /> ug/1; all others are in mg/1. <br /> Georgetown- Boulder <br /> Silver Plume Tungsten Gold Hill <br /> PH 4.4 - 7.2 5.6 - 6.7 5.5 - 7.8 <br /> Fe 0.4 - 117 0.4 - 1.7 0.4 - 4.0 <br /> Mn 0.03-3 0.03-0.4 0.03-0.38 <br /> Zn 0.1 - 70 0.03-0.09 0.08-0.9 <br /> Cu 0.1 0.2 0.5 <br /> Cd1 1.1 - 6.4 0.5 0.5 <br /> Pbl 1 - 8.5 1 1 <br /> Na 8.3 - 12.5 3 - 13 11 - 20 <br /> K 2.9 - 5.5 0.7 - 4.5 1.6 - 5.3 <br />• Mg 60 - 280 30 - 62 31 - 165 <br /> Ca 65 - 120 24 - 80 55 - 210 <br />1Concentrations in ug/1. <br />