Lanthanides in Fluid Inclusions, Quartz, and Greenschists from Auriferous and Barren Quartz-Vein Zones of the Sovetskoe Quartz-Gold Deposit, Yenisei Range, Russia

摘要

The analysis of rare earth elements (REE) both in individual mineral grains and monomineralic fractions is widely used in the Earth sciences for petrogenetic modeling and is an important tool for the investigation of mineral deposits. According to Vinokurov et al. [1], the main characteristic feature of the REE is the similarity of their ionic radii and chemical properties, which change monotonously in the extended series from lanthanum to lutetium. These properties convert into a uniquely sensitive genetic code, which records the main processes of magmatic, fluid, and crystal chemical differentiation, both predating and accompanying the formation of various natural objects. On the other hand, only a few studies have addressed the lanthanides in fluid inclusions from hydrothermal deposits. Novgoro-dova et al. [2] studied vein quartz from the gold deposits of the Urals and supposed that the REE are mostly concentrated in gas-liquid inclusions. Laverov et al. [3] reported a wide spectrum of rare and rare earth elements in various concentrations in fluid inclusions in productive quartz from the Sukhoi Log gold-platinum deposit.