A brief appraisal of probable gold in dredge and sluice tailings dumps at placers in Russia’s Far East is given. In terms of mining waste piles and operating placer mines in the Khabarovsk Territory, Jewish Autonomous Province, Amur and Magadan Regions, a probable gold content of dredge and sluice tailings dumps is predicted. The calculation used different combinations of estimation parameters: loss, initial gold content, fineness of gold sand. It is shown that the probable gold content varies quantitatively and qualitatively as function of combination of the estimation parameters. The tough, optimistic, realistic and unrealistic scenarios of prospects for secondary gold extraction from dredge and sluice tailings are presented.

中文翻译：

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俄罗斯远东砂矿场疏浚尾矿场潜在含金量的前瞻性评价

简要评估了俄罗斯远东砂矿中挖泥船和水闸尾矿倾倒场中可能存在的黄金。就哈巴罗夫斯克边疆区、犹太自治省、阿穆尔州和马加丹州的采矿废物堆和运营中的砂矿而言，预计疏浚和水闸尾矿场可能含有金含量。计算使用了不同的估计参数组合：损失、初始含金量、金砂细度。结果表明，可能的金含量随估计参数的组合而在数量和质量上发生变化。介绍了从疏浚和闸门尾矿中二次提取黄金的前景的艰难、乐观、现实和不现实的情景。