|
Radomiro Tomić Mine
The Radomiro Tomic mine is an open-pit mining, open pit mine that extracts copper oxide minerals at above sea level in the Andes mountains near to Chuquicamata mine and Calama, Chile, Calama in northern Chile's Antofagasta Region. Although this deposit was discovered in the 1950s, its operations started only in 1995, after Codelco updated the feasibility studies for its exploitation and acquired the technology necessary to exploit it profitably. Today, Chilean Copper Corporation (Codelco) controls the mine. Until 1999, Radomiro Tomic was referred to as "Codelco Chile Division Radomiro Tomić", since then, (Codelco) has renamed it "Codelco Norte". External links Codelco {{DEFAULTSORT:Radomiro Tomic Copper mines in Chile Mines in Antofagasta Region Open-pit mines Surface mines in Chile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open-pit Mining
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow. This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface. It is applied to ore or rocks found at the surface because the overburden is relatively thin or the material of interest is structurally unsuitable for tunnelling (as would be the case for cinder, sand, and gravel). In contrast, minerals that have been found underground but are difficult to retrieve due to hard rock, can be reached using a form of underground mining. To create an open-pit mine, the miners must determine the information of the ore that is underground. This is done through drilling of probe holes in the ground, then plotting ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
