Структурные и геохимические особенности золоторудных районов Приамурской провинции

Abstract

The article discusses structural confinement and geochemical features of localization of three historically formed gold ore districts in the Amur gold-bearing province: Solovyovsk, Gonzha, and Tokur, presenting the data on the gold deposits in the districts, from which, since 1890, the main amount of gold has been extracted. It is shown that the structural elements, determining the position of gold ore districts, are the zones of ore-controlling faults: South Tukuringra, North Tukuringra, and Jeltulak. The distinct spatial connection of the native gold and cinnabar dressing halos with the North-Tukuringra and South-Tukuringra fault zones has been established. The significant amounts of mercury in the native gold of the Amur province, as well as high gold content in cinnabar and native mercury are noticed, which may indicate the genetic proximity of the gold and mercury mineralization of the province. It is assumed that the main source of gold and mercury is the mantle matter, initially rich in these components. It is established that, in the Amur gold-bearing province, the principal geochemical feature of ore-controlling fault zones is gold and mercury mineralization confined to them.