Abstract
Attention to mined gold placers as sources of mineral reserve base replenishment is constantly increasing. We conducted an analysis of the field mining ratio regarding the 170-year period of gold mining history in the region, which is roughly divided into four stages, using the example of gold placer clusters in the Amur region. Each stage has its own peculiarities that determine the nature and methods of alluvial deposits development and the amount of raw material losses. It’s shown that previously mined placers within the studied area are being developed continuously. The technogenic complex gets involved into operation almost immediately after mining the undeveloped placer. The obtained results confirm the fact that the indicator of demand for technogenic objects continuously increases with the upward trend from 64% during the first stage to 80% at present.
Highlights
The current global economic situation, exacerbated by the pandemic, has revealed many challenges and set priorities for crisis resilience in various economic sectors
We conducted a retrospective analysis of resource and environmental problems arising from the development of placers over various historical periods within the Russian Far East
There are 32 alluvial clusters identified on the territory of Amur Oblast, Khabarovsk Krai and Jewish Autonomous Oblast (JAO) [5,6,7]
Summary
The current global economic situation, exacerbated by the pandemic, has revealed many challenges and set priorities for crisis resilience in various economic sectors. Gold mining turned out to be part of a small number of stable industries. This precious metal proved to be the most profitable on stock markets.The countries’ might is associated with it; gold always has been and still is the measure of wealth. The price for the triple ounce (31.1 g) of gold on the London Metal Exchange once reached 1900 US dollars. Over the past ten years its growth in the domestic market amounted to 200%. The global market situation may unfold for this metal and whatever its price, it (along with diamonds) has been and still remains the most significant export commodity (on an equal footing with oil and gas), which covers a significant percentage of income for many nations
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