what is the most common type of mine for copper open cut under ground,Mining - Wikipedia, the free encyclopediaMining is the extraction of valuable minerals or other geological materials from the earth from .. They followed the ore veins underground once opencast mining was no .. two common excavation types: surface mining and sub-surface (underground) ... The largest and second deepest open-pit copper mine in the world is.what is the most common type of mine for copper open cut under ground,Surface mining - Wikipedia, the free encyclopediaSurface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed. In contrast to underground mining, in which the overlying rock is left in place, . In most forms of surface mining, heavy equipment, such as earthmovers, first.Copper - Mineral Fact Sheets - Australian Mines AtlasThe main ore mineral of copper in Australia (and worldwide) is chalcopyrite (CuFeS2). . Although large copper deposits are mined by open-cut methods in many of the . most of the copper ore produced in Australia comes from underground mines. . Depending on the type of copper bearing minerals in the ore and the.
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