| 词条 | Cerro Vanguardia Mine | |||||||||||||||||||||||||||||||||
| 释义 |
| name = Cerro Vanguardia Mine | image = | width = | caption = | pushpin_map = Argentina | pushpin_label = Cerro Vanguardia Mine | pushpin_map_caption = Location in Argentina | coordinates = {{coord|48|23|09|S|068|15|49|W|region:AR|format=dms|display=inline,title}} | place = Puerto San Julián | subdivision_type = Province | state/province = Santa Cruz | country = Argentina | owner = AngloGold Ashanti 92.5% Formicruz 7.5% | official website = AngloGold Ashanti website Formicruz website | acquisition year = | stock_exchange = JSE | stock_code = [https://web.archive.org/web/20110716104416/http://fin.jse.co.za/findata/sharesearchresult.asp?searchtype=string&searchtext=ANG&requesttype=&y=&GetCodeOnly=1 ANG] | products = Gold Silver | financial year = 2009 | amount = Gold: 208,000 oz Silver: 2,200,000 oz | opening year = 1998 | closing year = }} The Cerro Vanguardia Mine is a gold and silver mine located 150 km north west of Puerto San Julián, in the Santa Cruz province of Argentina. It is majority-owned and operated by AngloGold Ashanti, which holds a 92.5% interest in the mine . The remaining 7.5% are owned by Formicruz (Fomento Minero de Santa Cruz Sociedad del Estado), a company owned by the province of Santa Cruz.[1] In 2008, the mine contributed 3% to the company's annual production and employs in excess of 1,000 people. The Cerro Vanguardia mine consists of a number of small open pits.[1] Geologically the mine lies in Deseado Massif, an area known for its valuable gold deposits.[2]HistoryThe gold deposit at Cerro Vanguardia was first discovered in 1976 and, in 1987, mining group Pérez Companc S.A. formed a mineral exploration joint venture with AMSA, Anglo American’s South American holding company.[3] AngloGold, predecessor of AngloGold Ashanti, acquired a 46.23% interest in the project in 1998–99, and an additional 46.25%, the Pérez Companc stake, in July 2002, doubling its interest to 92.5%. AngloGold Ashanti owns the right to exploit the deposit for 40 years based on the Usufruct Agreement, signed in December 1996. Cerro Vanguardia, which was constructed at a total cost of US$ 270 million, was commissioned in late 1998.[4] The mine suffered a difficult year in 2008, when production fell by 25% while the cash cost more than doubled.[1] The company did however manage to improve production in 2009 and lower the cash cost again. In 2009, the mine was also fatality-free for the seventh consecutive year.[7] Future mining plans at Cerro Vanguardia include an underground operation, from 2010, and a heap leach operation.[7] Gold productionRecent production figures of the mine were:
References1. ^1 2 AngloGold Ashanti: Country report Argentina accessed: 14 July 2010 2. ^{{cite journal |last1=Echavarría |first1=Leandro E. |last2=Shalamuk |first2=Isidoro B.|last3=Etcheverry |first3=Ricardo O. |date=2005 |title=Geologic and tectonic setting of Deseado Massif epithermal deposits, Argentina, based on El Dorado-Monserrat |url= |journal=Journal of South American Earth Sciences |volume=19 |issue=4 |pages=415–432 |doi= |access-date= }} 3. ^Cerro Vanguardia Gold and Silver Mine, Argentina mining-technology.com, accessed: 14 July 2010 4. ^AngloGold annual Report 2003 AngloGold Ashanti website, accessed: 14 July 2010 5. ^1 2 Annual Report 2005 {{Webarchive|url=https://web.archive.org/web/20110719053855/http://www.anglogoldashanti.co.za/subwebs/InformationForInvestors/AnnualReport05/report/pdf/ar_report_2005.pdf# |date=2011-07-19 }} AngloGold Ashanti website, accessed: 11 July 2010 6. ^Annual Report 2006 {{Webarchive|url=https://web.archive.org/web/20110707144403/http://www.anglogold.com/NR/rdonlyres/5F4B53A4-2DE4-43EC-87AB-BDB13F5C8C1F/0/ar_report_2006.pdf# |date=2011-07-07 }} AngloGold Ashanti website, accessed: 11 July 2010 7. ^1 2 3 4 Annual Report 2009 {{webarchive|url=https://web.archive.org/web/20110912032422/http://www.anglogoldashanti.com/subwebs/InformationForInvestors/Reports09/AnnualReport09/f/AGA_AR09.pdf |date=2011-09-12 }} AngloGold Ashanti website, accessed: 9 May 2010 External links
5 : Gold mines in Argentina|Silver mines in Argentina|Surface mines in Argentina|AngloGold Ashanti|Mines in Santa Cruz Province, Argentina |
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