Copper Mining in America
نویسندگان
چکیده
منابع مشابه
Mining copper transport genes.
C is not only a ubiquitous metal in our modern, technological environment, it is also essential for the function of most living organisms. Just as it allows for the movement of electrons through wires, it helps catalyze the movement of electrons within biological molecules. Making up only 0.01% of the Earth’s crust, it is relatively scarce in the environment and must be actively scavenged. Unti...
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Observers have expressed concern that Chinese mining companies operating in Latin America are more egregious violators of labor and environmental standards than other mining companies. Critics point to the case of one operation in particular—Shougang Hierro Peru—as evidence of China’s threat to Latin American labor and environment. We combine archival research in Peru, personal interviews, and ...
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BACKGROUND The metal mining industry employs approximately 15% of formally employed workers in Zambia, but there is little information about the magnitude of occupational injuries among the miners. AIMS To determine the frequency rates of occupational injuries and fatalities among copper miners in Zambia. METHODS A retrospective study of occupational injuries and fatalities at one of the la...
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In this work, the concentration gradient (CG) analysis of local-scale exploration for Porphyry-Cu deposits is applied in two zones using the G(Vz) index (CG(Zn*Pb)/CG(Cu*Mo)). The first zone is covered by a 1:2000 map of the Sungun and Astamal areas in NW Iran and the second one in the Inza area in British Columbia, Canada. The rock samples are taken from Sungun and Astamal and the soil samples...
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Vineyard soils are frequently polluted with high concentrations of copper due application of copper sulfate in order to control fungal diseases. Bioremediation is an efficient process for the treatment of contaminated sites. Efficient copper sorption bacteria can be used for bioremoval of copper from contaminated sites. In this study, a total of 106 copper resistant bacteria were examined for r...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1901
ISSN: 0036-8733
DOI: 10.1038/scientificamerican06081901-356