Литосфера (Aug 2016)
Verkhne-Aliinsky gold deposit: Conditions of formation, petrogeochemical features of rocks and ores (Munginsk ore cluster, Eastern Transbaikalia)
Abstract
The formation of Verkhne-Aliinsky gold deposit is associated with formation of annular volcano-plutonic structure (VPS), which central parts consists of granite-porphyries Shakhtamin complex (J2-3) and peripheral parts constracts by effusive rocks of Shadaron series (J2-3). High-temperature ore mineral associations developed in the central part of VPS, and low-temperature - in the peripheral part. Petrochemical data of rocks from VPS indicates to their forming in consequence of crystallization differentiate from the mantle source. The formation of ore-bearing fluid took place owing to processes of mantle-crustal interaction.