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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]
This list of mines in China is subsidiary to the list of mines article and lists working, defunct and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list.
Jiangxi Copper (simplified Chinese: 江西铜业; traditional Chinese: 江西銅業) (SSE: 600362) is the largest copper producer in Mainland China. Its operations include copper mining , milling , smelting and refining to produce copper-related products, including pyrite concentrates, sulfuric acid and electrolytic gold and silver .
Porphyry deposits account for most of the copper and molybdenum world production, 60 and 95 percent of its supply respectively. [1] Porphyry-type ore deposits form in hydrothermal fluid circulation systems developed above and around high-level, subvolcanic felsic to intermediate magma chambers and/or cooling plutons. The ore is temporally and ...
Production trends in the top five copper-producing countries, 1950-2012. This is a list of countries by mined copper production. Copper ore can be exported to be smelted so that a nation's smelter production of copper can differ greatly from its mined production. See: List of countries by copper smelter production.
The Oyu Tolgoi mine is in the South Gobi Desert of Mongolia, 80 kilometres (50 mi) north of Mongolia's border with the People's Republic of China, where the mined copper is expected to be shipped. [4] Oyu Tolgoi deposits contain an estimated 2.7 million tonnes of copper and 1.7 million ounces (48,000 kg) of gold. [6]
The copper and gold rich property discovered by Ivanhoe Mines in 2001, is in the process of being transformed into an open pit and underground mining operation. It is located 80 km north of the China Mongolia border giving the companies that produce there an added benefit (China is the world's biggest market for commodities futures). [40]
The US Geological Survey estimated that, as of 2013, there remained 3.5 billion metric tons of undiscovered copper resources worldwide in porphyry and sediment-hosted type deposits, two types which currently provide 80% of mined copper production. This was in addition to 2.1 billion metric tons of identified resources.