Environmental viewpoint on small-scale copper, gold and silver mining in Chile

Sergio H. Castro, Mario Sánchez

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

26 Citas (Scopus)

Resumen

This paper analyses the importance and environmental impacts of metallic small-scale mining in Chile. This sector is characterized by the exploitation of primarily artisanal copper (Cu), gold (Au), and silver (Ag) deposits, which are dispersed throughout (Chilean) Regions I through VI, with heaviest concentrations in Regions III and IV. In 2000, Chilean small-scale mines employed some 1700 workers (5.1% of total mining workers), and plants with a production capacity of less than 50 tpd accounted for 0.97% (44,603 t) of Cu; 6.5% (3,484) of Au; and 1.1% (13,665 kg) of Ag output in the country. High-grade ore extraction, flotation, gravity concentration, acid leaching-cementation, and mercury amalgamation, are the main metallurgical technologies employed. Following an overview of Chilean small-scale mining, the paper examines the environmental impacts of its production processes, and discusses the legal support and regulatory framework in place for operations.

Idioma originalInglés
Páginas (desde-hasta)207-213
Número de páginas7
PublicaciónJournal of Cleaner Production
Volumen11
N.º2
DOI
EstadoPublicada - mar. 2003
Publicado de forma externa

Áreas temáticas de ASJC Scopus

  • Energías renovables, sostenibilidad y medio ambiente
  • Ciencias ambientales (todo)
  • Estrategia y gestión
  • Ingeniería industrial y de fabricación

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