Abstract
About 1400 placers and several dozens of ore gold deposits are known in the Amur gold-bearing province. Placers are to a large degree worked out, so the future of the province is seen to be in the discovery of the new gold deposits. The paper shows the dependence of the productivity and composition of the native gold placers on the size and formational affiliation of the placer-forming gold deposit. The reference couples have been identified: the gold deposit and the placer formed due to the erosion of its' upper part. For example, the Tokur gold-quartz deposit is a channel-fill placer in Tokur stream, gold-sulphide-quartz deposit Pioneer—the placer in Ulungi river, gold-sulphide-quartz deposit Bamskoe—the placer of Chulbangro river, Berezitovoye gold-polymetallic deposit—placer of the Konstantinovsky stream and gold-silver field Pokrovskoye—placer of Sergeevsky stream. A forecast of new gold deposits of a certain formation has been made according to the parameters of the placer and the composition of the native gold. A similar selection of reference couples of a gold deposit and a placer with the subsequent forecasting of new deposits can be one of the methods for predicting gold deposits in the other gold-bearing provinces.
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