Hydrogenic processes of autigenic mineralization of native gold of the Ural placers

摘要

In the article the processes of formation of "new" autigenic native gold are considered. The forms of manifestation of noble-metal mineralization in the Ural placers are also taken into consideration. The studies of gold deposition at cryogenic and evaporative geochemical barriers (Australia, New Zealand, Canada) are exemplified. The influence of microorganisms, bacteria and fungi on the processes of gold dissolution, transfer and accumulation are shown as well. The history of the Urals during the formation of Mesozoic weathering crusts and the development of peneplain with the formation of laterites is demonstrated. The mechanism of modern processes of technogeogenesisis given.