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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]
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 ...
Shoksha porphyry, quartzite of purple color resembling true porphyry mined near the village of Shoksha, Karelia, Russia; Porphyritic, the general igneous texture of a rock with two distinct crystal (phenocryst) sizes; Porphyry copper deposit, a primary (low grade) ore deposit of copper, consisting of porphyry rocks
Porphyry copper-gold deposits found in the west and northeast of the Junggar Basin. Iron deposits found in the eastern part of the basin due to early subduction events during Lower Carboniferous. During post-collision extensional events in Permian, gold deposits found on the west side and tin deposits found on the east side.
The mine is the result of a ten-year exploration and construction program based on a 1999 discovery of the porphyry copper deposit. Production began in 2000. Production began in 2000. The mine utilizes a "truck and shovel" open-pit mining method, with ore reporting to semi-Autogenous Grinding and ball mills , followed by a flotation circuit .
Diorite, monzonite, and syenite are found together on the margins of the Paleoproterozoic North China craton. These likely formed during the assembly of Columbia and suggest the North China craton was in the interior of Columbia, between Laurentia and Siberia. [10] The Bingham mine consists of porphyry copper deposits hosted in
Bornite is an important copper ore mineral and occurs widely in porphyry copper deposits along with the more common chalcopyrite.Chalcopyrite and bornite are both typically replaced by chalcocite and covellite in the supergene enrichment zone of copper deposits.
Quellaveco represents one of the largest copper reserves in Peru and in the world, having estimated reserves of 1.1 billion tonnes of ore grading 0.55% copper. [2] The planned development of the mine estimates a processing capacity of 85000 metric tonnes per day. Fluor Corporation has been assigned as the EPCM contractor for this project. [1]