Slide 1: IGC Field Trip
Golden Cross Resources COPPER HILL PORPHYRY Cu-Au DEPOSITS IGC Field Trip Molong, Sunday, August 12th, 2012 Kim Stanton-Cook GCR Managing Director
Slide 2: Acknowledgments
Acknowledgments to David Timms, Chris Torrey, Robin Hee, Paul Burrell, Bret Ferris, Glenn Coianiz, Anne Eastwood, Chris Johnston, Natasha Jacobs, Pete White, Vladimir David, Rob Harley, Jonathan Hoye, Glenn Diemar, Eath Chhun, Steve Collins, Bob White, Dane Burkett, Neil Rutherford, Greg Corbett, Pa
Slide 3: Disclaimer
DISCLAIMER This material contains certain forecasts and forward-looking information, including information about possible or assumed future performance, exploration results, resources or potential growth of Golden Cross Resources Ltd (GCR), industry growth or other trend projections. Such forecasts
Slide 4: Golden Cross Properties
@® Georgina Basin @= Bowen Basin ® Galilee Basin = Surat Basin &> Eromanga Basin @ Lachian Fold Belt @® Mt Isa Iniier mm Curnamona Prov. © Yilgarn Block @® Olympic Darnain Golden Cross Properties @ 100% owned © Farm-out Joint Ventures ® Phosphate Farm-out Sunny Corner Cullarin Quidong
Slide 5: Tectonic setting of porphyry copper-gold mineralisation in the Macquarie Arc
Tectonic setting of porphyry copper-gold mineralisation in the Macquarie Arc R. A. GLEN, A. J. CRAWFORD, D. R. COOKE The Ishihara Symposium: Granites and Associated Metallogenesis Geoscience Australia “GROUP 3: ~450-445 Ma porphyries constitute the Copper Hill Suite, emplaced at the beginning of the
Slide 6: Copper Hill: Regional Address
153 Mt @ 0.32% Cu & 0.27g/t Au @ a 0.2% Cu cut-off grade Copper Hill: Regional Address
Slide 7: Copper Hill, aerial view looking south
Cadia 45 km to southeast Northparkes 80 km to northwest Molong township Wattle Hill Copper Hill Boundary Buckley’s Hill Copper Hill, aerial view looking south
Slide 8: Copper Hill - Basics
Copper Hill - Basics • GCR’s flagship copper-gold project contains a JORC-compliant Resource of 493,200 tonnes of contained copper and 1.33 million ounces of gold within a constrained, optimised open pit. • Copper Hill Igneous Complex of late-Ordovician calc-alkaline, multi-phase dacite-tonalite int
Slide 9: Copper Hill Exploration History
COPPER HILL EXPLORATION HISTORY • Discovered and mined around 1845 – 60m deep shafts, cross-cuts and unsuccessful reverberartory furnace • 1850 – 1966 sporadic small scale mining • In the past forty years, the Copper Hill area and in particular the Copper Hill prospect has been explored by a number
Slide 10: Copper Hill – Exploration
Copper Hill – Exploration • Airborne magnetic & radiometric surveys • Induced Polarisation surveys • Geochemical surveys • Geological mapping and interpretations • Drilling – logging (lithologies, mineralisation, alteration, structure) assigning domains • Resource calculations • Mining studies - fea
Slide 11: (partial)
EL6615 (partial) EL6391 i Pi Littlelcopper * i) /) uit) Wh) CoppermHi
Slide 12: Magnetics map
=. ene eee 6000 400008 94400081 (63340008 6336000 ‘63380008 (65320008 [1 Random textured magnetic highs 2 (probably intrusions or 4é hornfelsed volcanics) 3 \* [—]_ Magnetic iows Y C1 provatiy aterec intrusion) 2 ° Lee 4é Areas of completely flat magnetic texture (Intense alteration or on magnetic i
Slide 13: Magnetics and drill assay traces; IP and drill assay traces
Magnetics and drill assay traces IP and drill assay traces
Slide 14: Copper Hill IP - Chargeability
Copper Hill IP - Chargeability 2km
Slide 15: IP chargeability 100m below surface
100m below surface 1km
Slide 16: IP chargeability 200m below surface
200m below surface 1km
Slide 17: IP chargeability 300m below surface
300m below surface 1km
Slide 18: 3D IP Chargeability and Resistivity Models
Plan of 3D IP Chargeability Model. Yellow 35, Red 45 mV/V. . .Resistivity Model. Red low to blue high resistivity. The green and blue area are coincident with the volcanics. Perspective section of 3D chargeability From: A new survey design for 3D IP inversion modelling at Copper Hill. model looking
Slide 19: 3D Chargeability IP model of Copper Hill
3D Chargeability IP model of Copper Hill with sensitivity controlling the colour saturation.. From: A new survey design for 3D IP inversion modelling at Copper Hill. R.M.S. White S. Collins R. Denne R. Hee P. Brown
Slide 20: Copper Hill X-Sections
5000E 5000E <100m> 5500N 5300N 5000E Copper Hill X-Sections Barren dyke corresponding with low IP chargeability 5100N
Slide 21: Greg Corbett's Evolving Porphyries
Greg Corbett’s Evolving Porphyries
Slide 22: Greg Corbett photographs
Greg Corbett photographs Sheeted laminated quartz- Stockwork B veins in intrusion F magnetite-sulphide (M style) veins DDH 107 214m within intrusion F - DDH107, 257 m. Sheeted B veins in sericite altered C vein style sulphides overprinting intrusion F. Note the central laminated quartz vein - DDH 64
Slide 23: Later sulphides overprint laminated and B veins
Later sulphides overprint laminated Early chlorite-magnetite alteration cut by and B veins – DDH 64 130m later sulphides of a C vein style – DDH 74 248m. Sulphide fill breccia of a C vein Pyrite-rich D vein with later carbonate - type- DDH 107 232m. DDH 74 245m
Slide 24: Paul Ashley's Petrographic Studies
Paul Ashley’s Petrographic Studies
Slide 25: GCHR064 62.8 m TS
GCHR064 62.8 m TS Summary: Porphyritic dacite (or microtonalite porphyry) originally containing phenocrysts of plagioclase, ferromagnesian phases, quartz and microphenocrysts of FeTi oxide in a fine grained quartzofeldspathic groundmass. The rock has undergone strong and pervasive hydrothermal alter
Slide 26: GCHR064 76.6 m PTS
re; yo hapa ree GCHR064___76.6m PTS Summary: Very strongly altered porphyritic dacite (or microtonalite porphyry) with local veining. The original rock contained scattered plagioclase, ferromagnesian and quartz phenocrysts, with a few microphenocrysts of FeTi oxide and apatite in a fine grained quar
Slide 27: GCHR064 89.5 m PTS
Slide 28: GCHR064 118.4 m PTS
GCHR064 118.4 m PTS Summary: Mostly hydrothermal vein infilling with minor retention of highly altered screens of host rock. It is likely that the host rock (presumably porphyritic dacite or similar, but no relict texture preserved) was initially intensely altered to assemblages ranging from hydroth
Slide 29: GCHR064 134.75 m PTS
GCHR064 134.75 m PTS Summary: Contact between fine grained porphyritic dacite and microtonalite porphyry, with both rock type displaying strong hydrothermal alteration and veining. It is possible that the dacite could be an enclave in, or a dyke in, the microtonalite porphyry, although the actual co
Slide 30: GCHR107 206.05 m TS
GCHR107 206.05 m TS Summary: Strongly porphyritic dacite, with relict quartz phenocrysts and pseudomorphs after former phenocrysts of plagioclase and ferromagnesian material in a very fine grained quartzofeldspathic groundmass. There has been very strong pervasive hydrothermal alteration of phyllic
Slide 31: GCHR107 216.8 m PTS
GCHR107 216.8 m PTS Summary: Very strongly hydrothermally altered porphyritic intermediate to felsic igneous rock with abundant veining. The original rock may have contained phenocrysts of feldspar and ferromagnesian material in a fine grained quartzofeldspathic groundmass. There may have been initi
Slide 32: Coarse chalcopyrite mass with gold inclusion
Fig. 42: Portion of coarse chalcopyrite mass with a small composite inclusion of gold (pale yellow) and sphalerite (mid-grey). Gold grain is about 10 microns across. Plane polarised reflected light, field of view ~0.2 mm across.
Slide 33: GCHR107/353.05 m sulphide composite aggregate
Fig. 45: GCHR107/353.05 m: Sulphide composite aggregate associated with quartz (dark grey) in breccia matrix. The sulphides include pyrite (pale creamy), chalcopyrite (yellow), sphalerite (mid-grey) and galena (pale grey). Two grains of gold (pale yellow) are at a galena- sphalerite contact. Plane p
Slide 34: Copper Hill Geological/Mineral/Alteration Domains
Copper Hill Geological/Mineral/Alteration DOMAINS • Mineralising Tonalite Porphyry - mineraliser domain • Position – central top of area enclosed by pit shell, directly below the supergene zone. • Rock host – mainly MTP, some andesitic volcanics and TP dykes • Mineralisation style - dense to moderat
Slide 35: CTP/carapace domain and Argillic domain
• CTP/carapace domain • Position – below the MTP-mineraliser domain • Rock host – mainly CTP, some MTP, TP dykes and andesitic volcanic • Mineralisation style - moderately dense to sparse veining – ‘B’ veins, ‘C’ veins and ‘D’ veins. Disseminated cpy and py also. • C veins – white to pink carbonate
Slide 36: Mineralised breccia, mixed tonalite/andesitic and mineralised waste domains
• Mineralised breccia domain • To date, only intersected at Wattle Hill. Estimated volume of total ore tonnage ~1%. • • Mixed tonalite porphyry/andesitic volcanic domain • Position – north-western part of the deposit. A discontinuous domain from 5200N to 6200N (local grid). Typified by mineralisatio
Slide 37: Soil Geochemistry
=| 2007 Resource Optimised Pit 2009 Sulphide Added Optimised Fit Little Copper Hill Shades Rd a _ _ Soil Geochemistry i # aR { Buickleys ge Saddle = Na ») Boundary ‘Open, Gut J / y a a. Cia Lode 3 ‘Wattle Hill 2 Pewer Bindiil Hay;shed: Wale Head
Slide 38: Copper Hill Drilling 2010 and into 2011: New Zones
COPPER HILL DRILLING 2010 and into 2011 NEW ZONES Buckley’s Hill Extensions & Wattle Hill Infill & Deeps
Slide 39: Buckley's Hill Extensions
COPPER HILL DRILLING 2010 and into 2011 Buckley’s Hill Extensions +200m wide near surface +480m wide at depth Drill intervals of: 486m @ 0.33% Cu 283m @ 0.23%Cu with 66m @ 0.6% Cu 108m @ 0.43% Cu + gold credits OPEN ALONG STRIKE & DEPTH
Slide 40: Buckley's Hill, Section 6150N
200 metres Buckley’s Hill, Section 6150N • Big & expanding zone indicated • Copper and gold grades remain elevated and above average. • Substantial extensions indicated along strike to the northwest • Step-out core drilling to begin immediately. • Cross-sections both north and south of the 6150N sec
Slide 41: Buckley's Hill section intercepts
Open, next section 6250N to be drilled 6200N 283m @ 0.23% Cu 6150N 313m @ 0.25% Cu 6100N 6050N 190m @ 0.42% Cu 6000N 106m @0.31% Cu (Shallow holes) 486 m @ 0.33% Cu
Slide 42: Wattle Hill Infill & Deeps
COPPER HILL DRILLING 2010 and into 2011 NEW ZONES Wattle Hill Infill & Deeps 73m @ 0.45% Cu, 0.42g/t Au 85m @ 0.39% Cu, 0.82g/t Au 101m @ 0.21% Cu 26m @ 0.5g/t Au + High grade NW plunging zone carrying 3m @ 2.48% Cu 8m @ 3.72% Cu
Slide 43: Oxide Resource Drilling Gold grade x thickness contours
Oxide Resource Drilling Gold grade g/t x thickness contours
Slide 44: Oxide Resource Drilling Copper grade x thickness contours
Oxide Resource Drilling Copper grade % x thickness contours
Slide 45: Copper Hill Mine - Critical Issues
Copper Hill Mine - Critical Issues • Preliminary open pit, mine infrastructure, ROM pad, waste dump, and tailings dam designs in progress • Metallurgy/Processing test-work continuing Under consideration: • Capex & Financing • Property purchases • Water entitlements • Regulatory approvals
Slide 46: Copper Hill – a low grade copper-gold porphyry deposit
Cadia 45 km to southeast Molong township P ow er: 132 K v Sub-station 4.5 km Wattle Hill Copper Hill Outcropping mineralisation, low strip ratio Buckley’s Hill Plant & Mill Site Copper Hill – a low grade copper- gold porphyry deposit ASX - GCR