Magma Copper smelter chimney stack falls

Resolution Copper, a joint venture between giants Rio Tinto and BHP Billiton, demolished a 94-year-old copper smelter stack near the Arizonian town of Superior, some 60 miles east of downtown Phoenix. The proposed Resolution Copper Mine, which is believed to host one of the biggest copper deposits in the world, is a project slated to produce 9 billion tonnes of copper during its mine life of 40 years. Production is forecast to start in about 10 years. The project has already consumed nearly $1.2 billion of Rio’s and BHP’s capital.