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 Island, Indonesia
Annotation: Location map of Batu Hijau
Source: Courtesy Newmont Mining Corporation
Date: 2003
File size: 8911 bytes
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Digital elevation model and bathymetry of the Indonesian region
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: 84.23 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Major gold & copper districts, deposits and prospects of the Indonesian region
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: 166.60 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Simplified geological map and chronology of map units for Sumbawa Island
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: 77.96 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Structural elements of Sumbawa Island, showing the locations of significant gold and copper deposits and prospects, Plio-Pleistocene volcanic domes, and lineaments interpreted from aerial photographs
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: 47.20 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Simplified & interpretive geology of SW Sumbawa
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: 70.83 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Gold in stream sediments by catchment basin in south-western Sumbawa
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: 99.24 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Schematic cross-section, which illustrates the relationship between the Miocene andesitic basement rocks, Late Miocene to Pliocene dacitic cover rocks, and Pliocene felsic intrusives
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: 14.16 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Physiography and locations of the study 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: 72.26 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Interpreted geology of 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: 146.94 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Schematic geological cross-sections for 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: 127.59 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Schematic chrono-stratigraphic column for the andesitic volcaniclastic rock succession and intermediat- to-felsic intrusions 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: 86.95 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Schematic cross-section of quartz vein abundance for porphyry-related "A" and "B" veins 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: 47.30 Kb
Location: Batu Hijau, Sumbawa, Indonesia
Annotation: Orientation and distribution of "A" and "B" quartz veinlets in the Batu Hijau deposit by structural domain
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: 57.72 Kb

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