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It showed the world's largest copper deposits existed in Balkhab district of Sar-e-Pol. The copper mine was discovered near a river, an area which might hold gold reserves as well. The government launched tenders in late 2011 for the Balkhab copper deposit, which had reserves of about 45 Mt of 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]
It is the largest undeveloped gold deposit in Canada and one of the world's biggest copper-gold porphyry deposits. [5] [6] Though 2P reserves are significant (39 million ounces of gold, 214 million ounces of silver, 9.9 billion pounds of copper and 257 million pounds of molybdenum) they only represent about 65% of the mine's total resource of ...
Mes Aynak (Pashto/Persian: مس عينک, meaning "little source of copper"), also called Mis Ainak or Mis-e-Ainak, was a major Buddhist settlement 40 km (25 mi) southeast of Kabul, Afghanistan, located in a barren region of Logar Province. The site is also the location of Afghanistan's largest copper deposit.
It will be the world's first deep sea mining project, with first production expected in 2013. [22] [23] The resource is high grade copper-gold resource and the world's first Seafloor Massive Sulphide (SMS) resource. [22] Important minerals are created by the rapid cooling of the gases emerging from volcanic openings on the sea floor. [24]
Collahuasi represents one of the largest copper reserves in Chile and in the world having estimated reserves of 3.93 billion tonnes of ore grading 0.66% copper. [1] The mine produced 560,000 tonnes of copper in 2018, making it one of the world's largest copper mines. [2] FCAB ore train crossing the Ascotán salt flat at the mine
The Sarcheshmeh Copper Complex is located 65 km southwest of Kerman and 50 km south of Rafsanjan. The region's altitude averages about 2600m, the highest spot of which approximates 3000m. Sarcheshmeh ore bodies, situated in the central part of Zagros ranges, consist of folded and faulted early tertiary volcano-sedimentary rocks.
The opencast was the biggest pit in the world during the 1990s, but has since been surpassed by the Escondida mine, which is now the world's largest producing mine, with 750,000 metric tons of annual productions (5.6% of the world's production in 2000). Copper has been mined for centuries at Chuquicamata, as evidenced by the 1899 discovery of ...