Abstract
The Caucasus lie within the Alpine orogenic belt. Their geotectonic structure is very complex. It can be subdivided on the basis of various geotectonic characteristics, facies changes, and variable degrees and types of magmatic activity. Effusive magmatic activity in the different periods of geologic history occurred before folding; this is especially evident in geosynclinal zones. Granitoids of different ages are synchronized with the accumulation of sediments under regressive sea conditions. In some cases, the age of the granitoids have been absolutely determined. Metasomatic granitization probably occurred in the early structural stages; granitic magma intrusions in the later stages. Ore-bearing solutions are associated with both types of granite emplacement. The author, however, assumes that ore deposition resulted from the penetration of ore-bearing solutions directly from depth with no relation to the formation of the granitoids.
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