Results 1 to 10 of about 4,396,031 (348)
Heavy Metals in the Soils of Placer Small-Scale Gold Mining Sites in Myanmar [PDF]
Journal of Health and Pollution, 2020 Background. Artisanal and small-scale mining activities are widely practiced globally. Concentrations of heavy metals associated with gold, such as copper (Cu), zinc (Zn), arsenic (As), cadmium (Cd), mercury (Hg) and lead (Pb) can increase in the ...
Aung Zaw Tun +2 more
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International Journal of Applied Earth Observations and Geoinformation, 2021 Placer mining is a mineral extraction method in floodplains that involves the removal of earth material to access mineral-laden sediments, a process that can have significant and long-term impacts on aquatic ecosystems.
Karim Malik +3 more
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Method for calculating the groundwater inflow into pit when mining the placer deposits by dredger [PDF]
E3S Web of Conferences, 2019 The research aims to increase the performance efficiency of hydromechanization equipment under the conditions of pit operation of the Motronivskyi Mining and Concentrating Plant by determining the dynamics of change in the water level in the mine ...
Sobko Borys +3 more
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Colonial Placer Mining in Colombia [PDF]
Hispanic American Historical Review, 1953 Walter Howe, Robert C. West
semanticscholar +3 more sources
From placer deposits to technogenic mineral formations: resource and historical perspective (a study of Amur region) [PDF]
E3S Web of Conferences, 2020 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 ...
Mirzekhanov Gadzhi, Mirzekhanova Zoia
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Impacts of Open Placer Gold Mining on Aquatic Communities in Rivers of the Khentii Mountains, North-East Mongolia [PDF]
Mongolian Journal of Biological Sciences, 2010 Since the political change and due to high market prices for gold the mining sector has consid- erably grown in Mongolia and has become one of the most important economical sectors.
Daniel A. Krätz +5 more
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Strategy of consolidation in gold mining as a tool for creating an effective business [PDF]
E3S Web of Conferences, 2020 The subject of the article is the search for an effective strategic solution within the framework of sustainable development of gold mining enterprises belonging to small and medium-sized mining businesses.
Kradenykh Irina, Barchukov Aleksei
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Mercury-Based Mining in Yanomami Indigenous Lands and Accountabilities [PDF]
Ambiente & Sociedade, 2020 Mercury-based gold exploitation in Amazonian indigenous lands is illegal and leads to socio-environmental impacts. Yanomami people living near mining areas in Uraricoera River are exposed to contamination by mercury, which is a metal with bioaccumulation
Alan Robson Alexandrino Ramos +2 more
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Технічна інженерія, 2019 The efficiency of technological schemes at the mining watered titanium-zirconium deposits was established for the condition of the Motronovsky mining and processing plant pit by the index of the investments payback period.
B.Yu. Sobko, O.V. Lozhnikov
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