SCIE 1P50 Lecture Notes - Lecture 8: Lac De Gras, Rare Earth Element, Yttrium
4 Oct 2016
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Document Summary
A 380m super-stock was constructed to disperse/dilute emissions in 1972. In 1980s, scrubbers were also used to capture so2. Nuclear energy accounts for 15% of canada"s electricity supply. China hopes to open 42 nuclear plants by 2019. Ekati mine nwt 200km south of arctic circle. Kimberlite pipes formed 150km below surface eruptions bring them to surface and glaciation scours them and leaves behind deep depressions: overburden that you take out, you have to put somewhere. 40 million tonnes of waster rock per year regions of permafrost subsoil frozen 250m tailings kept in long lakes. Animals use the lac de gras area during migration. Colton mining in dr congo: indispensable for the production of cell phones, 90% of the mines are managed by small groups, profits are split 50/50. Bbc visit to mine in dr congo: considered to be a conflict mineral, profits used to run kill groups.
