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Morro Velho

Coordinates:19°35′S43°31′W / 19.59°S 43.51°W /-19.59; -43.51
From Wikipedia, the free encyclopedia
Gold mine in Brazil
Morro Velho
Morro Velho Gold Mine is located in Brazil
Morro Velho Gold Mine
Morro Velho Gold Mine
Location in Brazil
Show map of Brazil
Morro Velho Gold Mine is located in Minas Gerais
Morro Velho Gold Mine
Morro Velho Gold Mine
Morro Velho Gold Mine (Minas Gerais)
Show map of Minas Gerais
Location
LocationNova Lima
StateMinas Gerais
CountryBrazil
Coordinates19°35′S43°31′W / 19.59°S 43.51°W /-19.59; -43.51
Production
ProductsGold,silver,arsenic
Production329,000
Financial year2009
History
Opened1835
Owner
CompanyAngloGold Ashanti
WebsiteAngloGold Ashanti website

Morro Velho, also calledAngloGold Ashanti Brasil Mineração, after its current ownerAngloGold Ashanti, is a complex ofgold mines located near the city ofNova Lima inMinas Gerais,Brazil.

It is one of two mining operations of the company in Brazil, the other being theSerra Grande Gold Mine.

In 2008, the Brazilian operations contributed 8% to the company's overall production.[1]

History

[edit]

Themines have been in operation since 1725 and came under the proprietorship of the EnglishSaint John Del Rey Mining Company in 1834. In this period the mine was amongst others instrumental in the establishment of a hydro-electrical power plant, a state of the art hospital, theVilla Nova AC association football team, which had some importance between the 1930s and 1970s and the construction of a circa 10 kilometretramway line between Nova Lima andRaposos, considered the first in South America.

In 1915, the Morro Velho mine reached a vertical depth of 5,824 feet (1,775 m), which made it the deepest mine in the world.[2][3] The miners continued going deeper, and the mine kept the title of world's deepest until 1928, when the Village Deep mine in South Africa reached a vertical depth of 8,000 feet (2,400 m), exceeding the depth of the Morro Velho, which was 7,126 feet (2,172 m) in 1929.[4][5] The mine changed its ownership later on to the Carvalhaes family.

In 1975 the South Africa-basedAnglo American Corporation, a precursor to today's AshantiGold, became owners of the operations. These days Morro Velhos is the world's oldest continuously worked mine. Some of the mines' works are over 3,000 meters (9,800 feet) deep underground. Although Morro Velho's main production isgold,silver,arsenic, and other minerals are also extracted at the mining complex.

Despite closing of the Minha Velha and Engenho D'Água mines in 2003 and 2004, gold production has increased over the past three years, with 240,000 ounces (6,800 kilograms) of gold produced in 2004 at an average recoveredore grade of 0.222 ounces per ton (7.62 grams permetric ton). Cash costs of production totalled $133 per ounce, with the mine realizing adjusted operating profit of $45 million.

In 2009, the mine employed close to 3,000 people, 2,250 of those being permanent staff.[6]

Production

[edit]

Recent production figures of the mine were:

YearProduction (ounces)GradeCost per ounce
2003[7]228,0006.84 g/tUS$ 141
2004[7]240,0007.85 g/tUS$133
2005[7]250,0007.27 g/tUS$169
2006[8]242,0007.60 g/tUS$195
2007[6]317,0007.48 g/tUS$233
2008[6]320,0007.62 g/tUS$300
2009[6]329,0007.02 g/tUS$339
2010

Images

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  • Saint John Del Rey Mining Company 1868
    Saint John Del Rey Mining Company 1868
  • Morro Velho 1907
    Morro Velho 1907
  • Aqueduct constructed by the English to wash gold
    Aqueduct constructed by the English to wash gold

References

[edit]
  1. ^AngloGold Ashanti: Country report BrazilArchived 2011-07-07 at theWayback Machine AngloGold Ashanti website, accessed: 13 July 2010
  2. ^”World’s deepest mines in U.P.,”Michigan Manufacturer and Financial Record, 12 Feb. 1916, p.7.
  3. ^”The world’s deepest mine,”Mining Congress Journal, May 1924 p.229.
  4. ^Thomas Phelps, “The world’s deepest mine,”Popular Mechanics Magazine, 1928, v.49 p.467.
  5. ^Jacob E. Gair, Geology and Ore Deposits of the Nova Lima and Rio Acima Quadrangles, Minas Gerais Brazil,” US Geological Survey, Professional Paper 341-A, p.A54-A55.
  6. ^abcdAnnual Report 2009Archived 2011-09-12 at theWayback Machine AngloGold Ashanti website, accessed: 9 May 2010
  7. ^abcAnnual Report 2005Archived 2011-07-19 at theWayback Machine AngloGold Ashanti website, accessed: 11 July 2010
  8. ^Annual Report 2006Archived 2011-07-07 at theWayback Machine AngloGold Ashanti website, accessed: 11 July 2010

External links

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