Alkane Resources Ltd · ASX:ALK
Alkane Resources — Technical Presentation (February 2025)
22 slides from Alkane Resources's technical presentation, Feb 4, 2025
Slide 1: The Boda Porphyry Discovery
The Boda Porphyry Discovery David Meates, Exploration Manager NSW Rodney Dean, Senior Geologist Ian Chalmers, Technical Director MAY 2022 © 2022 Alkane Resources | ASX:ALK
Slide 2: Disclaimer
Disclaimer This presentation contains certain forward-looking statements and forecasts, including possible or assumed reserves and resources, production levels and rates, costs, prices, future performance or potential growth of Alkane Resources Ltd, industry growth or other trend projections. Such s
Slide 3: Acknowledgements
Acknowledgements • Alkane employees past and present • Dr Alan Wilson (GeoAqua Consultants) • Dr Anthony Crawford (A & A Crawford Geological Research Consultants) 3
Slide 4: Overview
Overview Background Geological setting Prospect geology Mineralisation Boda geological model Implications for exploration 4
Slide 5: Background
Background Alkane Active in the Central West for 30 years • Peak Hill Gold Mine operation 1998 – 2002 • Tomingley >2Moz Au resources and production since 2014 • Other Discoveries • Discovery with Newmont of >2Moz Au McPhillamys and subsequent sale to Regis Resources (2012) • Resource definition of G
Slide 6: Regional Setting
Regional Setting MACQUARIE ARC – ORDOVICIAN VOLCANICS Major Porphyry – Epithermal Deposits: Northern Molong Porphyry Project Boda (resource?) Northparkes (5.2Moz Au + 4.4Mt Cu) Cadia (50Moz Au + 8.7Mt Cu) Cowal (11Moz Au) 6
Slide 7: Exploration History
Exploration History • EL 4022 was acquired from CRAE (Rio Tinto Exploration) in 2004 with the initial interest being the historically mined (70koz) high grade quartz vein at Bodangora (Mitchell’s Creek mine). • Following drill testing of Bodangora by Alkane (with very few interesting results), the c
Slide 8: Geological Setting
Finns Geological Setting Crossing • Boda and Kaiser located at the intersection of the Arc parallel Nindethana Thrust and northwest ‘Dubbo’ transverse corridor. Other north-south thrust structures offset the belt to the west (Macquarie Thrust). Nindethana Macquarie Thrust • Dilationary intersection
Slide 9: Boda Geology – Country Rocks
Boda Geology – Country Rocks • Boda volcanics are shoshonitic. • Host Ordovician volcanic package comprises of four litho-geochemically distinct suites. • Most abundant upper suite correlates with the upper Fairbridge Volcanics. KSDD007 - 345m (Vol1A) hornblende-augite- plagioclase -phyric basaltic
Slide 10: Boda Geology – Intrusive Rocks
Boda Geology – Intrusive Rocks • Intrusions comprise of high-K calc-alkaline to shoshonitic monzodiorite and monzonites. • Monzogabbro and monzodiorite intrusives are feeder dykes and are pre- mineral. • Monzonite dykes host only late-mineral quartz- chalcopyrite veins suggesting late-mineral timing
Slide 11: Boda Geology – Intrusive Breccias
Boda Geology – Intrusive Breccias • Magmatic-hydrothermal breccias appear to be the focus of the extensive calc- potassic alteration at Boda. • Series of NW trending monzodiorite intrusions form a vertical 300m x 500m stock of intrusive breccias central to Boda. • Intrusive breccias transition to hy
Slide 12: Mineralisation
Mineralisation • ~3km of continuous >0.2g/t gold mineralisation from Kaiser to Boda Three prospects. • Approximately 60,000 metres of drilling at Boda for the maiden resource estimation.
Slide 13: Mineralisation
Mineralisation • Calc-potassic alteration assemblage of biotite-actinolite-epidote- magnetite. • Higher Au-Cu grades centred around sulphide cemented breccias of calc-potassic altered volcanics. • Veining proximal to the breccias is dominantly calcite-quartz and typically sulphide poor. • Hematite b
Slide 14: Mineralisation
Mineralisation • Bornite-chalcopyrite cemented breccia observed at depth to the northwest. Indicator of the Boda system plunging northwest. • Overprinting north-east shoulder of Boda is a gold - rich phyllic blanket comprising of sericite-quartz-calcite- BOD072 - 404m @ 0.31g/t Au from 334m albite-p
Slide 15: Mineralisation – Hydrothermal Breccia Zonation
Mineralisation – Hydrothermal Breccia Zonation KSDD040 – pyrite-cemented crackle breccia 1m grading 0.41g/t Au from 250m KSDD043 – chalcopyrite-cemented crackle breccia 1m grading 14.3g/t Au, 2.80% Cu from 738m BOD071 – chalcopyrite-bornite crackle breccia 1m grading 2.32g/t Au, 1.46% Cu from 973m
Slide 16: Mineralisation Zonation
Mineralisation Zonation MACQUARIE ARC PORPHYRY MODEL GEOCHEMICAL SIGNATURE Boda Metal Zonation
Slide 17: Boda Geological Model
Boda Geological Model • Shallowly east dipping host sequence of shoshonitic basalt to andesite lavas with rare volcaniclastics. The volcanic sequence is cut by near vertical monzogabbro to monzonitic dykes and intrusive breccias. • Positioned beneath a submarine stratovolcano. • Alteration of host s
Slide 18: Exploration Implications: Magnetic Intrusive Complexes
Exploration Implications: Magnetic Intrusive Complexes 15km northwest trending structural corridor with multiple ‘fertile’ alkalic intrusive complexes. Finns Crossing Murga prospect skarn target and separate strong IP chargeability anomaly possible extensive phyllic alteration. Float samples 6.4g/t
Slide 19: Exploration Implications: Electrical Geophysics
? Exploration Implications: Driell Creek phyllic zone Electrical Geophysics New alteration • Seven IP surveys completed since 1999 including three targets? ALK IP – 2019 – windfarm small programs completed by North. compromised? • Bodangora Wind Farm was constructed from 2017 – 2019 and exploration
Slide 20: Exploration Implications: Discovery Drilling Section
Exploration Implications: Discovery Drilling Section • Initial RC drilling in conducted by CRAE in 1995 outlined 600m x 200m zone of shallow low-grade mineralisation. • In 2016 Alkane targeted the Boda mineralisation and a co-incident IP Section chargeable high with deep RC hole KSRC018 intersecting
Slide 21: Summary
Summary • Boda is a Au-Cu alkalic porphyry system associated with intrusive-hydrothermal breccias of a host sequence of basaltic -andesites. Boda represents a probable unique style of significant Au-Cu porphyry mineralisation for the Macquarie Arc. • Exploration work continuing at Boda Two, Kaiser,
Slide 22: @alkaneresources alkane-resources-ltd alkane.com.au
@alkaneresources alkane-resources-ltd alkane.com.au
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