Geochemistry of the rare earth elements in the sparkling groundwaters of the Caucasus ridge, Russia

摘要

The paper presents data on the content and distribution of rare earth elements (REE) in the high pCO_(2)mineral waters of the Caucasus mountain-folded region. It is shown that the concentrations of REE_(total)are rather high in the studied waters. However, they vary in a very wide range (from 0.46 to 50.37 μg/L). A characteristic feature of these waters is the predominance of light REE in comparison with heavy REE in them. The distinct correlation of REE_(total)in the solution from the concentration of iron and aluminum in it indicates that the absolute contents of REE in the mineral waters of the region are regulated not only by pH and Eh of the solution but also by the content of these elements in it.