Rb–Sr Isotopic Systematic of Hydrothermal Minerals, Age, and Matter Sources of the Nezhdaninskoe Gold Deposit (Yakutia)

Abstract

The problem of the relationship between orogenic (mesothermal) gold deposits and magmatic and meta morphic processes is the most debatable. The Nezhdaninskoe deposit is a typical and large object of such type, that is why the age of hydrothermal miner alization and sources of metals are the key points in the study of this concrete deposit and working out of the abovementioned problem as a whole. Direct dating of hydrothermal formations of the Nezhdaninskoe deposit is currently the central problem. Such isotope geochronological data are absent, so that the age correlation of oreforming and magmatic processes on this deposit is still an open question.