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: Photograph and photomicrograph of early quartz veinlets and mineralisation at 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: 66.37 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photograph and photomicrograph of transitional quartz vein at 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: 80.22 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photographs and photomicrographs of biotite-altered rocks 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: 82.13 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photographs and photomicrographs of biotite-altered rocks 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: 84.06 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photomicrographs of secondary oligoclase and K-feldspar in biotite-altered rocks 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: 95.47 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photomicrographs of secondary oligoclase and K-feldspar in biotite-altered rocks 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: 65.72 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photographs and photomicropgraphs of actinolite veinlets and actinolite-altered rocks 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: 80.78 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photographs and photomicropgraphs of diopside-magnetite veinlets in equigranular quartz diorite, north-east 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: 95.43 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photographs and photomicropgraphs of epidote-altered rocks 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: 79.75 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photographs of feldspar-destructive alteration zones 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: 72.70 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photographs and photomicropgraphs of pyrite "D" veinlets and mineral selvages in rocks 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: 76.28 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photographs and photomicropgraphs of pyrite "D" veinlets and mineral selvages in rocks 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: 67.41 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photographs of quartz veins associated with feldspar-destructive alteration peripheral to the Batu Hijau deposit
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: 88.85 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Photographs and photomicropgraph of quartz veins in the vicinity of the Santong diatreme and East Nanka
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: 65.91 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Characteristics of late hydrothermal alteration zones in andesitic volcanic lithic breccia along the West Ridge mine access road, Batu Hijau deposit
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: 109.39 Kb

Back Next
 2 of 3
1 2 3