Results 241 to 250 of about 145,458 (298)

Automatic identification and feature analysis of Min-ing-Induced surface cracks using an improved DRA-UNet. [PDF]

Sci Rep
Zhou W, Zou Y, Chai H.
europepmc   +1 more source

Recent Advancements in Digital Management and Monitoring of Mine Waste: Sensors, Characterization, and Predictive Modeling-A Review. [PDF]

Sensors (Basel)
Li T, Desta F, Buxton M.
europepmc   +1 more source

Geochemical Assessment of Sediment Heavy Metal(loid) Concentrations in Lofa County, Northwestern Liberia: A Comparative Analysis of Average Shale and Upper Continental Crust Background Values. [PDF]

Toxics
Sow HM, Wang Q, Yousif MH, Wright FB, Chen K, Chen C, Indrick AAB.   +6 more
europepmc   +1 more source

Multi-scale soil moisture dynamics in arid mined Loess Plateau arise from crack evolution and microstructure collapse. [PDF]

Sci Rep
Ma T, Tang F, Zhang F.
europepmc   +1 more source

Small-scale gold mining in the Amazon

, 2013
de Theije, M.E.M., Cremers, L.
openaire   +1 more source

Artisanal and Small-Scale Mining

, 2017
This chapter argues the significant issues affecting artisanal and small-scale mining in the Asia-Pacific Region are caused by the profit-driven nature of the industry, which encourages poor practices to lower operational costs. Three key issues—environmental damage, health and safety and security—seriously impact on the industry, and will not be ...
Collins, Nina, Lahiri-Dutt, Kuntala, Davis, Kenneth, Kumar, S. Vijay, Bernaudat, Ludovic   +4 more
openaire   +2 more sources

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Mercury Management in Small-Scale Mining

International Journal of Surface Mining, Reclamation and Environment, 2002
The use of mercury (HG) in the mining industry to amalgamate and concentrate gold probably dates back to the Phoenicians and Carthaginians, who commercialized Hg. The use of mercury in gold extraction however faced a decline to near cessation at the beginning of the present century due to the invention of cyanidation.
Armando Valenzuela, Kostas Fytas
openaire   +1 more source

Small scale gold mining in Nicaragua

Minerals & Energy - Raw Materials Report, 1986
Abstract In 1982 the gross value of global small-scale gold mining was 1.6 billion US dollars. This article examines the importance and prospects of small-scale gold mining in non-industrialized countries, with special reference to Nicaragua.
Bengt Fagerberg, Robert Lilljequist, Noel Castellón, Bengt Fagerberg   +3 more
openaire   +1 more source

Recent developments in small‐scale mining

Natural Resources Forum, 1996
Artisanal mining is to be viewed not only as an issue requiring mining expertise, but also as a socio‐economic issue in the context of poverty, requiring multi‐sectoral attention. This article traces global employment estimates in small‐scale mining, outlining the extent and economic impact of small‐scale mining in selected countries in Africa, Asia ...
openaire   +1 more source

Small-Scale Gold Mining and the State in the Philippines

2017
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openaire   +2 more sources