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Gold-copper ore, concentrated and leached 16 (2018) [6] 16 Lisbon Valley San Juan County, Utah: Lisbon Valley Mining Company Copper ore, open pit, heap leached 10–15 (2018) [9] 17 Miami: Gila County, Arizona: Freeport-McMoRan: Copper ore, leached 5 (2021) [2] 18 Carlota Gila County, Arizona: KGHM Polska Miedź: Porphyry copper open pit ...
In the United States, copper mining has been a major industry since the rise of the northern Michigan copper district in the 1840s. In 2017, the US produced 1.27 million metric tonnes of copper, worth $8 billion, making it the world's fourth largest copper producer, after Chile, China, and Peru. Copper was produced from 23 mines in the US.
Mineral Park mine. The Mineral Park mine is a large open pit copper mine located in the Cerbat Mountains 14 miles northwest of Kingman, Arizona, in the southwestern United States. A 2013 report said that Mineral Park has an estimated reserves of 389 million tonnes of ore grading 0.14% copper and 31 million oz of silver. [1]
The Morenci Mine is a large copper mine located near Morenci, Arizona, United States.Morenci represents one of the largest copper reserves in the United States and in the world, having estimated reserves of 3.2 billion tonnes (3.5 × 10 9 short tons) of ore grading 0.16% copper.
Porphyry copper deposits represent an important resource and the dominant source of copper that is mined today to satisfy global demand. [6] Via compilation of geological data, it has been found that the majority of porphyry deposits are Phanerozoic in age and were emplaced at depths of approximately 1 to 6 kilometres with vertical thicknesses on average of 2 kilometres. [6]
Robinson Mine. The Robinson Mine is a porphyry copper deposit located at Ruth, White Pine County, Nevada, in the Egan Range, 4 miles (6.4 km) west of Ely. The mine comprises three large open pits: Liberty, Tripp-Veteran and Ruth. The ore is extracted using conventional surface methods, and is then processed into a copper-gold concentrate, and a ...
543-S Deposit - near Deer Lake, Keweenaw County. Adventure mine - Greenland. Aetna Exploration Copper mine - Keweenaw County. Aetna mine - Keweenaw County. Agate Harbor mine - Agate Harbor, Keweenaw County. Agency mine - Keweenaw County. Ahmeek mine - Ahmeek, Keweenaw County. Albion mine (originally the Manhattan Mine) - Keweenaw County.
Copper interconnects. In semiconductor technology, copper interconnects are interconnects made of copper. They are used in silicon integrated circuits (ICs) to reduce propagation delays and power consumption. Since copper is a better conductor than aluminium, ICs using copper for their interconnects can have interconnects with narrower ...
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