the open pit mine and the copper ore enrichment plant. An open pit mine is an excavation or graze made into the surface of the ground for the purpose of extracting ore, also known as open cast mining or open cut mining. The contents of copper and molybdenum have changed since the mine began its operations. Over the
An open pit mine is typically excavated with a series of benches to reach greater depths. Open pit mining initially involves the removal of soil and rock on top of the ore via drilling or blasting, which is put aside for future reclamation purposes after the useful content of the mine has been extracted. The resulting broken up rock materials are removed with front end loaders and loaded onto dump trucks, which then transport the ore to a milling facility.
Arizona is the United States largest source of copper, primarily mined from a type of ore body known as porphyry copper deposits. The most common approach to extracting metal bearing ore from a porphyry copper deposit is by open pit mining, although such mines also typically include some underground activities.
Open pit mining is one of mankinds greatest achievements in the ongoing search for precious ores such as copper, silver, iron, and gold. It describes the process of systematically excavating land and digging out the rocks and minerals in search of metallic ores and removing them via borrow or open pit.