Geology and gold content of carbonaceous shale in Baikal mineralization site, Southern Ural
Journal: Eurasian Mining
Year: 2021

The authors analyze gold mineralization in Baikal site inside Kumak ore field, adjoined to Bredin black shale sediments (С1bd). It is found that the gold mineralization within the site adjoins mostly bands of quart&ndash;micaceous&ndash;tourmaline metasomatically altered carbonaceous shale. Float sampling of all local rock varieties shows commercial content of gold (to 6.5 g/t) and stable high content of silver (to 7.6 g/t). Gold is mostly finely dispersed, and is connected with two basic minera