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In mining, tailings or tails are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore.Tailings are different from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.
The Ombilin Coal Mine (formerly PT Tambang Batubara Ombilin (TBO)) is a coal mine near Sawahlunto, West Sumatra, Indonesia. It is located in a narrow valley along the Bukit Barisan mountains, among the Polan, Pari, and Mato hills, approximately 70 kilometres (43 mi) northeast of Padang .
PT Aneka Tambang Tbk, colloquially known as Antam, is an Indonesian mining company. The company primarily produces gold and nickel, and is the largest producer of nickel in Indonesia . Until 2017, Antam was a directly state-owned company , before its ownership was transferred to PT Mineral Industri Indonesia (Persero) or MIND ID, a government ...
The plan was to build the plant along the Gulf of Kutch, an inlet of the Arabian Sea that provides a living for fishing clans that harvest the coast’s rich marine life.
Open-pit mines are typically worked until either the mineral resource is exhausted, or an increasing ratio of overburden to ore makes further mining uneconomic. [citation needed] After open-pit mines are closed, they are sometimes converted to landfills for disposal of solid waste.
College Football Playoff bracket Bye teams: No. 1 seed Oregon (Big Ten leader) No. 2 seed Texas (SEC leader) No. 3 Miami (ACC leader) No. 4 seed Boise State (Mountain West leader)
Wealth inequality casts its shadow on everything from children's early development to adults' emotional well-being. It directly impacts education, housing, wellness and mental health.In fact ...
The Alamo Bowl will be a glorified Big 12 game. The bowl announced which schools it is considering for the Dec. 28 game on Thursday.And all four of them are in the Big 12. Iowa State, BYU, Arizona ...