TRENGGALEK, COPPER GOLD PROJECT
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Trenggalek Copper Gold Project - 12,813 ha IUP OP in East Java, Indonesia. This advanced project has more than 17,000m of drilling completed and hosts several large-scale porphyry and epithermal prospects. Previously explored by PT Aneka Tambang (1990s) and then ARC Exploration Ltd in a JV with Anglo American (2012-2014). Historic exploration included: 1) 18.000m of drilling (81 holes) across multiple prospects; 2) 3,675km airborne magnetic and radiometric survey; 3) Detailed geological mapping over 70%of the IUP area; 4) Stream sediment and soil sampling; 5) Surface geochem survey of >10,500 soil and >5,000 rock samples; and 6)Ground IP/Resistivity.
- Sentul Prospect
The Sentul area demonstrates polyphase low sulphidation type epithermal quartz-chalcedony- sulphide veins/breccia up to 10m-15m wide and having greater than 5km-10km collective strike length consisting of Au + Ag. Sentul is a very large gold-bearing epithermal vein system, initial scout drilling has only tested total vein-trace length of about 650m, this represents less than 10- 20% of the vein system. The vein system is complex and open in all directions. There is sufficient volume to indicate that it may host a large gold resource in multiple ore shoots with further potential for high-grade veins at depth.
- Sumber Bening Prospect
High priority prospect with potential for epithermal and porphyry style copper and gold. Characterised by broad area of advanced argillic alteration in lithocap zone over 5,000m along NNE strike trend. The Sumber Bening prospect remains undrilled.
- Buluroto Prospect
The Buluroto prospect holds potential for a porphyry related gold and copper target based onmineralisation. Results from a 5 hole scout program at Buluroto highlight locally high gold with significantly elevated copper, arsenic and antimony within a poorly defined zone of crackle breccia and stockwork that may be up to 75 m wide and dipping steeply to the west. The limits of the mineralised breccia-stockwork system remain to be defined and it is open in all directions.
- Singgahan Prospect
Broad zone of telescoping copper-gold-molybdenum anomalies traceable along NNW strike to more than 1 km with 500m in width centred on an altered and magnetite stockwork veins in diorite intrusion. Magnetic (RTP) anomalies in association with Cu-Au anomalies (in rocks), and quartz stockwork vein observed in surface outcrop and drill core.
- Jerambah Prospect
2,000m by 1,500m silica-clay-pyrite alteration zone centred on medium grained diorite intruding andesitic volcanic and volcaniclastic rocks. A hole was drilled about 1,000m to the ENE of a hydrothermal breccia outcrop and proved the existence of multiphase intrusion events with alteration characteristics distal from a potential mineralized body.