ENV100Y5 Chapter Notes - Chapter 11: Boron, Sulfur, In Situ Leach
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ENV100Y5 Full Course Notes
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Grade = level of concentration of ore in a deposit. Mining is an important industry both globally and for canada: much of canada"s economic history has been based on extractive industries, many towns exist mainly because of their mining history, mineral production contributed approx. 21% of the value of exported goods from canada: the non-fuel mining industry, together with processors and manufacturers of products provided roughly 1 in every 46 jobs in canada in 2011. There are different types of mines: the type of mine depends on what you are mining and what type of deposit it is. Dynamite blasts, collapsed tunnels, toxic fumes, coal dust: subsurface mines can affect people years after they close. Acid drainage, polluted groundwater, sinkholes damage roads and homes, etc. This acid runs off, it leaches metals from the rocks, many of which are toxic to organisms. Mining industry in north america takes amd very seriously. Mine environment neutral drainage (mend) established in canada in.
