Results 231 to 240 of about 10,215,989 (281)

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

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 ...
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

Small-Scale Gold Mining and the State in the Philippines

2017
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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 ...
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Artisanal and small-scale mining

2021
Boris Verbrugge, Robin Thiers
openaire   +1 more source

Constraints on small‐scale mining in Africa

Natural Resources Forum, 1994
Contrary to expectations, small‐scale mining has had little impact on the development of Africa, despite the relative scale of activities in that field. This situation is due to the fact that the sector is facing various constraints and deficiencies, some structural in nature and others technical.
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Determining the scale of coal mining in an ecologically fragile mining area under the constraint of water resources carrying capacity

Journal of Environmental Management, 2021
Ming-bo Chi
exaly  

Coexistence between large-scale mining (LSM) and artisanal and small-scale mining (ASM) in Perú and Colombia

Resources Policy, 2023
Elizabeth Holley, Oscar Felipe Rodriguez Novoa   +1 more
exaly  

Small-scale mining

Minerals & Energy - Raw Materials Report, 1995
openaire   +1 more source