Prospects for Gold of the Eastern Siberian Platform

Abstract

Generalization of the results of studies of mineralogical-geochemical features of placer gold and regularities of its distribution in alluvium of sedimentary cover allowed us to define prospects of gold content of the eastern Sibe- rian platform on a new level of knowledge. Since placer gold content does not represent commercial interest, it can be considered just as an object of integrated development of extraction of diamond, gold, platinum and other mineral resources. Thesis on gold-bearing conglomerates of Witwatersrand type, buried in deep horizons of sedi- mentary cover of the east of ancient platform, is problematic, and actually unrealistic as long as Precambrian sub- strate of the Yakutian arched uplift and other areas of the study region do not record positive geologic background for the formation of deposits of such type. Comparison of typomorphic features of placer gold and regularities of its distribution within a number of ancient platforms, allowed us for the first time to forecast the formation in this region of primary sources of Precambrian deposits of Porcupine and Kirkland Lake type and also Meso-Cenozoic deposits of Carlin and Cripple Creek type, known within the North-American platform.