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Subnautica is a 2018 action-adventure horror survival game developed and published by Unknown Worlds Entertainment. The player controls Ryley Robinson, a survivor of a spaceship crash on an alien oceanic planet, which they are free to explore.
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]
Udokan deposit geologic map and cross sections, where red denotes a bornite-chalcocite ore body, dark red denotes a pyrite-chalcopyrite ore body, green is a gabbro diabase, lamprophyre and quartz porphyry dike, and light tan is the Supraore sequence of the Upper Sakukan subformation and Naminga Formation.
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.
Kambalda-type ore deposits are distinctive in that the deposition of an immiscible Fe-Ni-Cu sulfide melt occurs within a lava flow channel upon the palaeosurface. This is distinct from other magmatic Ni-Cu-PGE deposits, where Fe-Ni-Cu sulfide melt accumulates within a subvolcanic feeder dike, sill, or magma chamber.
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 ...
Both the Copper Creek and Plum Creek deposits are in limestone. [74] Douglas County, in the northwest corner of the state, was heavily prospected in the 19th century for native copper deposits in Keweenawan-series rocks, similar to deposits found in Keweenawan rocks in Michigan. A number of mines were started, but none proved profitable. [75]
Just north of the main Mutanda deposit is the Shabara open pit mine. Shabara lies within the exploitation area held by Mutanda Mining Sarl (MUMI), where artisanal mining is illegal. Shabara is run by the artisanal mining cooperative COMAKAT, who signed an agreement in 2010 with the previous majority owners of the Mutanda, the Dino Steel ...