Search results
Results from the WOW.Com Content Network
Companhia Brasileira de Metalurgia e Mineração (Portuguese for Brazilian Metallurgy and Mining Company), or CBMM for short, is a Brazilian company that specializes in the processing and technology of niobium, extracted from its pyrochlore mine near the city of Araxá, in the Brazilian state of Minas Gerais.
Other mines did, however, and gold production in Virginia continued until World War II, when, on October 8, 1942, the War Production Board issued Limitation Order L-208, which branded gold production as a non-essential and directed all but the smallest of gold mines to shut down so their labor force could be used elsewhere to support the war ...
Vale's Mariana Hub was the 9th largest iron ore mining center in the world in 2014, with an output of 39 million metric tonnes. [14] Vale's Serra Sul / S11D is the largest mining reserve in the world. The company's iron ore mines are primarily in Brazil. [8] Nickel: Vale is the world's largest nickel producer. [13]
A school of mines (or mining school) is an engineering school, often established in the 18th and 19th centuries, that originally focused on mining engineering and applied science. Most have been integrated within larger constructs such as mineral engineering , some no longer focusing primarily on mining subjects, while retaining the name.
Hochschild Mining plans to invest about $200 million in the construction of a gold mine in Brazil, a project it will launch in the second quarter of the year, Chief Executive Officer Ignacio ...
Mine: State: Coordinates: Town: Owner: Dates: Comments: Pyne Mine: Alabama 33°22′33.18″N 86°55′21.65″W Lacey's Chapel: Woodward Iron Company: 1918–1971 One of only two shaft mines dug in the Birmingham District, and the last ore mine to operate in the region, closing in 1971. Sloss Mines: Alabama 33.39816°N 86.93276°W Red Mountain
The Monongah Mining Disaster was the worst mining accident of American history; 362 workers were killed in an underground explosion on December 6, 1907, in Monongah, West Virginia. The U.S. Bureau of Mines was created in 1910 to investigate accidents, advise industry, conduct production and safety research, and teach courses in accident ...
The collapse of Vale's Brumadinho iron ore tailings dam in Brazil was both shocking and devastating in its impact. It was the 11th serious tailings dam failure in the last decade and such ...