Hillgrove Resources Limited · ASX:HGO
Hillgrove Resources — 11th SA Exploration and Mining Conference 2014
21 slides from Hillgrove Resources's conference presentation, Dec 5, 2014
Slide 1: SAEMC Presentation on Proposed Oxide Treatment Operations at Kanmantoo
Friday, 5 December 2014 For personal use only SAEMC PRESENTATION ON PROPOSED OXIDE TREATMENT OPERATIONS AT KANMANTOO Please find attached a presentation made by representatives of Hillgrove Resources Limited (ASX:HGO) at the 11th SA Exploration and Mining Conference in Adelaide today. This presentat
Slide 2: Kanmantoo Global Mineral Resource and Ore Reserve Estimate
HILLGROVE RESOURCES LIMITED Kanmantoo Global Mineral Resource Estimate at end February 2013 JORC 2012 Tonnage Cu Au Ag Classification (Mt) (%) (g/t) (g/t) Measured 2.63 0.88 0.10 1.95 In Situ Resource Indicated 21.77 0.82 0.23 2.21 For personal use only Inferred 5.0 0.67 0.13 1.79 29.46 0.80 0.20 2.
Slide 3: Kanmantoo Copper Mine: Primary to Oxide
For personal use only KANMANTOO COPPER MINE “PRIMARY TO OXIDE” HAYDEN ARBON IIIII MINE GEOLOGIST BEN ALEXANDER IIIII METALLURGICAL SUPERINTENDENT 5 DECEMBER 2014
Slide 4: Copper Mine and Lease Areas
KANMANTOO COPPER MINE AND LEASE AREAS For personal use only 100%-owned by Hillgrove 55km from Adelaide, South Australia Mining Lease is within 500km2 exploration Exploration license, and relatively unexplored Area EL4401 Kitticoola Organic growth potential considered high Prospect Project
Slide 5: Copper Mine – Summary of Operation
KANMANTOO COPPER MINE – SUMMARY OF OPERATION For personal use only Historic copper mining area from 1840’s BH South developed and operated open pit mine and plant from 1971 to 1976 HGO acquired leases in 2004, resource development 2005-08, feasibility and construction 2009-11, initial producti
Slide 6: Mine – Orebody and Site Layout
KANMANTOO MINE – OREBODY AND SITE LAYOUT For personal use only Cross section through main Kanmantoo orebody with interim Kavanagh pit and final Giant pit (above) Plan view of all Kanmantoo pits (right) Note: Giant will include Kavanagh, Spitfire, Falcon, Lean, Matthew and Valentine 4
Slide 7: Geology: Geological Context
KANMANTOO GEOLOGY For personal use only Geological Context Located in Adelaide Fold Belt Early Cambrian Kanmantoo Group Metasediments Deposit hosted in the Tapanappa Formation – longest formation in the Kanmantoo Group Several deformation stages related to Delamerian orogeny Same metasedim
Slide 8: Geology: Lithology
KANMANTOO GEOLOGY For personal use only Lithology Regionally hosted in Biotite Schist (BS) Mineralisation hosted in a 6km wide Fe rich pelite (GABS) Staurolite with minor Muscovite also present Main zone mineralisation hosted in chlorite alteration (BGCS) Deposit Fe-rich; Na/Ca-poor Magn
Slide 9: Geology: Mineralisation
KANMANTOO GEOLOGY For personal use only Mineralisation Most likely epigenetic, though a SEDEX system is still argued Fe-rich fluid metasomatism Mineralisation usually hosted in stockwork vein selvages or podiform lenses Hosted commonly in quartz veins, but also magnetite/chlorite rich fluid
Slide 10: Geology: Mineralogy - Oxides
KANMANTOO GEOLOGY For personal use only Mineralogy - Oxides ‘Oxides’ encountered at shallow depths are predominately the Cu- carbonate malachite Azurite is also common in higher grade areas Atacamite, Cu in magnesium oxides, and Cu sulphates are minor occurrences 8
Slide 11: Geology: Mineralogy - Primary
KANMANTOO GEOLOGY For personal use only Mineralogy - Primary Most common Cu-bearing sulphide mineral is chalcopyrite Others include chalcocite, covellite and rare bornite Pyrite is mostly ubiquitous, transitioning to pyrrhotite at depth Rare galena and sphalerite along Cp with bismuth Silv
Slide 12: Oxide / Transitional Processing Introduction
OXIDE / TRANSITIONAL PROCESSING For personal use only INTRODUCTION Started processing primary sulphide copper (chalcopyrite) ore November 2011 Low cost capital throughput improvement projects have resulted in accelerated processing rates (2.4 to 3.2 Mtpa) 1.2 Mt of high grade copper oxide / tr
Slide 13: Primary to Oxide: Primary Ore
PRIMARY TO OXIDE For personal use only PRIMARY ORE Primary copper sulphide ore is coarse grained chalcopyrite with fast flotation kinetics (P80 -212um) Kanmantoo Mineral Resource (Feb 13) 31.30Mt @ 0.78% Copper, 0.20 g/t Gold, 2.11 g/t Ag Ore beneficiation via two stage crushing, SAG milling,
Slide 14: Primary to Oxide: Oxide / Transition Ore
PRIMARY TO OXIDE For personal use only OXIDE / TRANSITION ORE Extensive metallurgical testwork undertaken – 4 in-depth studies completed Operational parameters and modified process flow sheet developed Comminution - Oxide ore less competent, exhibits slight rheology difference Flotation – Co
Slide 15: What Is Controlled Potential Sulphidisation (CPS)?
WHAT IS CONTROLLED POTENTIAL SULPHIDISATION (CPS)? Sulphidise the copper oxide mineral surface (provide a copper sulphide layer) For personal use only Sodium Hydrosulphide (NaHS) employed as sulphidising agent Process involves a sulphidising or conditioning stage followed by collector addition
Slide 16: Oxide Process Flow Design
OXIDE PROCESS FLOW DESIGN For personal use only Config 65 oxide (2) FLOAT FEED ROUGHER 0 ROUGHER 1 / SCAV 1‐2 SCAVENGER 1‐2 SCAVENGER 4‐7 SCAVENGER 8‐12 OK100TC CONDITIONING CONDITIONING CONDITIONING CONDITIONING TANK 1 TANK 3 TANK 4 TANK 2 CLEANER 1‐4 CLEANER 5‐10 FINAL TAIL CONDITIONING FINAL TANK
Slide 17: Transitional Process Flow Design
TRANSITIONAL PROCESS FLOW DESIGN For personal use only Config 65 oxide (2) FLOAT FEED ROUGHER 0 ROUGHER 1 / SCAV 1‐2 SCAVENGER 1‐2 SCAVENGER 4‐7 SCAVENGER 8‐12 OK100TC CONDITIONING CONDITIONING CONDITIONING CONDITIONING TANK 1 TANK 3 TANK 4 TANK 2 CLEANER 1‐4 CLEANER 5‐10 FINAL TAIL CONDITIONING FIN
Slide 18: Processing Plant
For personal use only PROCESSING PLANT
Slide 19: Key Contacts
KEY CONTACTS For personal use only For further information please contact: Greg Hall, CEO and Managing Director Suite 1709 Australia Square Level 17, 264 George Street Sydney NSW 2000 E: info@hillgroveresources.com.au T: 61 2 8247 9300 17
Slide 20: Competent Person Statements
COMPETENT PERSON STATEMENTS For personal use only Kanmantoo Global Mineral Resource Estimate at End February 2013 ABOUT HILLGROVE JORC 2012 Tonnage Cu Au Ag Classification (Mt) (%) (g/t) (g/t) Hillgrove is an Australian mining company Measured 2.63 0.88 0.10 1.95 listed on the Australian Securities
Slide 21: Disclaimer – Important Notice
DISCLAIMER – IMPORTANT NOTICE For personal use only No representation or warranty is or will be made by any person (including Hillgrove Resources Limited ACN 004 297 116 (“Hillgrove”, “HGO”, or the “Company”) and its officers, directors, employees, advisers and agents) in relation to the accuracy or
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