BATU HIJAU COPPER-GOLD DEPOSIT


The Batu Hijau porphyry copper-gold orebody is located at long. 116º49', lat. 9º00'S on the island of Sumbawa in the Sunda-Banda Arc, Indonesia. Mineralisation occurs in the central stock of a tonalite intrusive complex, and in diorite and volcanic wallrocks. The central stock has associated intense pervasive potassic alteration that contains most of the higher grade mineralisation. This merges outwards into an extensive propylitic zone. Both of these zones are over-printed by widespread intermediate-argillic and minor phyllic and albite alteration. Argillic and advanced-argillic assemblages occur near surface. Copper and gold are largely hosted by quartz stockworks, but also as disseminations. Chalcopyrite and bornite are the main ore minerals. Current pit reserves as of December 2002 were 920 mt @ 0.55% Cu, 0.42 g/t Au. The property is owned by Newmont Indonesia Ltd.

Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Laminated fine volcanic sandstone and musdtone which marks the contact between the volcanic sandstone unit and overlying volcanic breccia sequence in the Batu Hijau mine area
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 54.37 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph & photomicrograph of plagioclase-hornblende phyric andesite in the Batu Hijau district
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 80.89 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph & photomicrograph of hornfelsic volcaniclastic rock
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 96.24 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photomicrograph of volcaniclastic rock from the Teluk Puna area, south of Batu Hijau
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 88.10 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph & photomicrograph of equigranular granodiorite and tonalite dykes at Sekongkang
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 52.99 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph & photomicrograph of equigranular granodiorite and tonalite dykes at Sekongkang
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 72.86 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph & photomicrograph of porphyritic hornblende tonalite
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 90.11 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph & photomicrograph of porphyritic hornblende tonalite
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 92.43 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph & photomicrograph of young tonalite porphyry and porphyritic dacite in the Batu Hijau mine area
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 91.02 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph & photomicrograph of young tonalite porphyry and porphyritic dacite in the Batu Hijau mine area
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 76.53 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph & photomicrograph of young tonalite porphyry and porphyritic dacite in the Batu Hijau mine area
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 86.56 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph & photomicrograph of andesitic volcanic breccia and accretionary lapilli-bearing volcanic sandstone in the Santong-Gold Ridge vicinity
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 95.27 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph & photomicrograph of andesitic volcanic breccia and accretionary lapilli-bearing volcanic sandstone in the Santong-Gold Ridge vicinity
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 94.56 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Steeply dipping plagioclase-pyroxene phyric basaltic andesite dyke with columnar cooling joints in volcaniclastic sequence along the primary access road. Smectite-stilbite alteration is visible in wallrock to the left of the dyke.
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 56.42 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photo and sketch of "A" and "B" quartz vein and veinlet sets
Source: Courtesy of Steven Garwin, PhD thesis 'The Setting, Geometry & Timing of Intrusion-related Hydrothermal Systems in the Vicinity of the Batu Hijau Cu-Au Deposit ....'
Date: August 2000
File size: 75.12 Kb

  Back Next
 1 of 3
1 2 3