The Roșia Poieni copper mine is a large open pitcoppermine in the centre of Romania, 90 km (56 mi) northwest of Alba Iulia and 484 km (301 mi) north of the capital, Bucharest. Geographically the mine is located in the Apuseni Mountains, 7 km (4.3 mi) south of the Arieș River in Lupșa commune. The access to the site is made through a south-west industrial haul road from Cornii Valley that crosses the National Road no. 74 Alba-Iulia – Zlatna – Abrud when entering Abrud and through a north industrial haul road from Mușca Valley that crosses the National Road DN75 [ro] Câmpeni – Turda in Mușca village, Lupșa commune.[1]
The Roșia Poieni deposit was developed between the 1950s and 1970s within the Abrud–Mușca–Bucium area (the Golden Quadrilateral) from Apuseni Mountains of the Metaliferi Mountains. The mine produces around 11,000 tonnes of copper a year and the mineral deposit represents 65% of the total copper reserves in Romania. The mine is owned by CupruMin a state owned company.[1]
Its decanting basin has totally erased the village of Geamăna at 46°19′41″N, 23°12′36″E.
Roșia Poieni represents the largest copper reserve in Romania and the second largest in Europe, having estimated reserves of 1.5 billion tonnes of ore grading 0.36% copper.[1] It is enclosed by eruptive sub-volcanoes Miocene rocks (micro-diorite or Fundoaia andesites).[1]
The ore extracted from the open pit is crushed in a gyratory crusher after being transported and stored in the crushed ore storage facility located within the processing plant site. The processing plant has a design capacity of 9 million tonnes extracted and processed per year, the process being made on 4 technological lines of 7,500 tonnes per day.[1] The plant was launched between 1985 and 1987. The ore is subsequently processed through a classical processing flow, with a two-stage grinding phase in two autogenous mills and in two ball mills, followed by flotation, which is performed in pneumomechanical cells (17 m2 (180 sq ft)) where the primary concentrate is obtained, which subsequently is flotated in cells of 5.7 m2 (61 sq ft) where a copper concentrate is obtained with a content between 16.5 and 20% copper. The concentrate is thickened in sided thickeners and filtered through a pressure filter (Larox).[1]
Referencesedit
^ abcdefghi. www.artelecom.net (in Romanian). 2009-05-25. Archived from the original on 2008-10-06. Retrieved 2009-05-25.
External linksedit
Official site
Mindat.org page for the mine, including list of minerals found there
May 11, 2024
roșia, poieni, copper, mine, large, open, copper, mine, centre, romania, northwest, alba, iulia, north, capital, bucharest, geographically, mine, located, apuseni, mountains, south, arieș, river, lupșa, commune, access, site, made, through, south, west, indust. The Roșia Poieni copper mine is a large open pit copper mine in the centre of Romania 90 km 56 mi northwest of Alba Iulia and 484 km 301 mi north of the capital Bucharest Geographically the mine is located in the Apuseni Mountains 7 km 4 3 mi south of the Arieș River in Lupșa commune The access to the site is made through a south west industrial haul road from Cornii Valley that crosses the National Road no 74 Alba Iulia Zlatna Abrud when entering Abrud and through a north industrial haul road from Mușca Valley that crosses the National Road DN75 ro Campeni Turda in Mușca village Lupșa commune 1 Roșia Poieni mineLocationRoșia Poieni mineLocation in RomaniaLocationRosia MontanăCommuneAlba CountyCountryRomaniaCoordinates46 18 53 N 23 10 17 E 46 31472 N 23 17139 E 46 31472 23 17139ProductionProductsCopperProduction11 000 tonnesFinancial year2008HistoryOpened1929OwnerCompanyCupruMin The Roșia Poieni deposit was developed between the 1950s and 1970s within the Abrud Mușca Bucium area the Golden Quadrilateral from Apuseni Mountains of the Metaliferi Mountains The mine produces around 11 000 tonnes of copper a year and the mineral deposit represents 65 of the total copper reserves in Romania The mine is owned by CupruMin a state owned company 1 Its decanting basin has totally erased the village of Geamăna at 46 19 41 N 23 12 36 E Contents 1 Geology 2 Ore processing 3 References 4 External linksGeology editRoșia Poieni represents the largest copper reserve in Romania and the second largest in Europe having estimated reserves of 1 5 billion tonnes of ore grading 0 36 copper 1 It is enclosed by eruptive sub volcanoes Miocene rocks micro diorite or Fundoaia andesites 1 The Fundoaia body has the shape of a vertical column of 1 180 m 3 870 ft in height 1 030 m 3 380 ft 150 m 490 ft and in horizontal plane having the following dimensions 660 m 2 170 ft 740 m 2 430 ft 820 m 2 690 ft 956 m 3 136 ft 1 The eruptive body comes in contact through the tectonic breccia with andesite necks Poieni Curmătura Melciu Piatra Tichileu and Jgheabului Hills and with sedimentary Cretaceous rocks 1 The porphyry copper deposit is made up mainly of fine disseminations nests and veinlets 0 02 3 cm of pyrite chalcopyrite and magnetite gold included in the chalcopyrite and pyrite and secondary minerals bornite covellite chalcocite sphalerite galena molybdenite germanite malachite azurite and is developed in microdioritic rocks 1 Ore processing editThe ore extracted from the open pit is crushed in a gyratory crusher after being transported and stored in the crushed ore storage facility located within the processing plant site The processing plant has a design capacity of 9 million tonnes extracted and processed per year the process being made on 4 technological lines of 7 500 tonnes per day 1 The plant was launched between 1985 and 1987 The ore is subsequently processed through a classical processing flow with a two stage grinding phase in two autogenous mills and in two ball mills followed by flotation which is performed in pneumomechanical cells 17 m2 180 sq ft where the primary concentrate is obtained which subsequently is flotated in cells of 5 7 m2 61 sq ft where a copper concentrate is obtained with a content between 16 5 and 20 copper The concentrate is thickened in sided thickeners and filtered through a pressure filter Larox 1 References edit a b c d e f g h i Roșia Poieni copper mine www artelecom net in Romanian 2009 05 25 Archived from the original on 2008 10 06 Retrieved 2009 05 25 External links editOfficial site Mindat org page for the mine including list of minerals found there Retrieved from https en wikipedia org w index php title Roșia Poieni copper mine amp oldid 1201633950, wikipedia, wiki, book, books, library,
