PIERINA GOLD-SILVER DEPOSIT


Pierina is a high sulphidation (acid sulphate) epithermal gold-silver deposit in a host of Tertiary pyroclastics.The open pit, valley-fill, heap leach operation is located at long. 77º35'W, lat. 9º26'S in the Cordillera Negra of north-central Peru. The main ore host is a core zone of residual vuggy silica with alunite, it is surrounded by a zone of alunite with minor pyrophyllite and dickite, and finally an outer zone of kaolinitic to illitic clay. At year-end 2002, proven and probable reserves at Pierina stood at 3.6 Moz of gold. Since production began in November 1998, the mine has produced over 3.5 Moz of gold at an average cash cost of US$51/oz.

Location: Pierina, Andean Cordillera, Peru
Annotation: Location of Pierina mine site
Source: Barrick Gold Corporation
Date:
File size: 48.49 Kb
Location: Pierina, Andean Cordillera, Peru
Annotation: Layout of Pierina mine site
Source: Courtesy Barrick Gold Corporation
Date: 2000
File size: 59.62 Kb
Location:Pierina, Andean Cordillera, Peru
Annotation:Aerial view of the Pierina operations
Source:Courtesy Barrick Gold Corporation
Date:2003
File size:20.99 Kb
Location: Pierina. Andean Cordillera, Peru
Annotation: Foreground: vuggy silica ore carrying 1-2 g/t gold. Background: barren alunite, clay zone.
Source: Peter Laznicka
Date: July 2000
File size: 66.93 Kb
Location: Pierina. Andean Cordillera, Peru
Annotation: Foreground: vuggy silica ore carrying 1-2 g/t gold. Background: barren quartz-alunite, alunite, clay zone.
Source: Peter Laznicka
Date: July 2000
File size: 60.54 Kb
Location: Pierina. Andean Cordillera, Peru
Annotation: Foreground: vuggy silica ore carrying 1-2 g/t gold. Rear face: barren quartz-alunite, alunite, clay zone.
Source: Peter Laznicka
Date: July 2000
File size: 58.69 Kb
Location: Pierina. Andean Cordillera, Peru
Annotation: Vuggy silica ore
Source: Peter Laznicka
Date: July 2000
File size: 80.30 Kb
Location: Pierina. Andean Cordillera, Peru
Annotation: Transition between vuggy silica on the right and the alunite-clay zone on the left
Source: Peter Laznicka
Date: July 2000
File size: 84.06 Kb
Location: Pierina. Andean Cordillera, Peru
Annotation: Illite-kaolinite altered volcanics
Source: Peter Laznicka
Date: July 2000
File size: 88.24 Kb
Location: Pierina. Andean Cordillera, Peru
Annotation: Edge of pit right distance; leach pad under construction in foreground; view NNE towards Nevado Huascaran
Source: Peter Laznicka
Date: July 2000
File size: 50.65 Kb
Location: Pierina. Andean Cordillera, Peru
Annotation: Pit to right of image; edge of leach pad under construction on the left; view NE across the Santa Valley towards the Cordillera Blanca
Source: Peter Laznicka
Date: July 2000
File size: 55.33 Kb
Location: Pierina. Andean Cordillera, Peru
Annotation: Pierina pits and dumps looking south
Source: Peter Laznicka
Date: July 2000
File size: 52.18 Kb
Location: Pierina. Andean Cordillera, Peru
Annotation: View SW from the camp on the Huaraz-Yungay highway; the Pierina dumps are visible on the top of the ridge in the centre of the photograph
Source: Peter Laznicka
Date: July 2000
File size: 41.55 Kb
Location:Pierina. Andean Cordillera, Peru
Annotation:View SE from Pierina across Huarez (hidden in the Rio Santa Valley) towards the Cordillera Blanca
Source:Peter Laznicka
Date:July 2000
File size:52.37 Kb
Location:Pierina. Andean Cordillera, Peru
Annotation:Standard vuggy-to-massive silica ore carrying 1-2 g.t gold
Source:Peter Laznicka
Date:July 2000
File size:87.75 Kb

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