North Stawell Minerals, Ltd. · ASX:NSM
North Stawell Minerals — Narrow Vein 2022, Central Victoria AusIMM Regional Symposium
25 slides from North Stawell Minerals's conference presentation, Aug 12, 2022
Slide 1: Victoria's secret – Gold potential under Murray Basin cover in the Stawell Zone
NORTH STAWELL MINERALS For personal use only North Stawell Minerals Ltd Victoria’s secret – Gold potential under Murray Basin cover in the Stawell Zone. Friday 12 August, 2022. We acknowledging the Traditional Owners of the land on which we meet today, the Wadawurrung and Dja Dja Wurrung People of t
Slide 2: Forward Looking Statements and Disclosures
FORWARD LOOKING STATEMENTS AND DISCLOSURES For personal use only Forward Looking Statement and Disclosures. This presentation is not making any offer, inducement, solicitation or invitation of any kind by communication of this presentation to the recipient and under no circumstances is it to be cons
Slide 3: History and Background
HISTORY AND BACKGROUND The Stawell Gold CORPORATE field is the 4th largest historic gold field in Victoria. & TEAM NSM is searching for repeats to the north under shallow basin cover. For personal use only Stawell • Discovered in 1853, historic mining ceased in 1920. • Western Mining re-established
Slide 4: A strong board with hands-on management
NSM PERFORMANCE AND SECTOR ACORPORATE strong board&with TEAM hands-on management For personal use only Capital Structure Directors & Management Jerry Ellis Non-Executive Chairman Graham Brown Non-Executive Director 120m $10.0m Mr Ellis worked with BHP for over 30 years, chairing the company from 199
Slide 5: Stawell Zone Geology
STAWELL ZONE GEOLOGY NSM is positioned in the highly prospective western margin of the Stawell Zone, Victoria. For personal use only • The Stawell Zone has 6 Moz historic production. Gold-prospective basement geology comprises folded and faulted meta-sedimentary rocks with minor volcanics. • Gold Mi
Slide 6: Stawell Zone Geology – Murray Basin cover
STAWELL ZONE GEOLOGY The Murray Basin is a blanket of un-mineralised* sediments that obscures (and preserves) gold-prospective geology For personal use only • The Murray Basin was an effective barrier to historic prospecting - preserving the underlying, near-surface gold potential. • 85% of the Staw
Slide 7: Exploration
EXPLORATION. Proof of concept: the Wildwood, Ashens and Kewell Prospects have all been found with drilling using a Stawell-type model. For personal use only NORTH STAWELL MINERALS
Slide 8: Tenement Position
TENEMENT POSITION NSM holds an exciting tenement position - 60km’s strike extension along the structures that control the Stawell Mine. For personal use only Tenement Status Number Area Initial NSM Earn-in Name (km2) holding potential Wildwood Granted RL007051 50 51% 90% Barrabool Granted EL5443 182
Slide 9: Next New Frontier?
NEXT NEW FRONTIER? Multiple exporers have taken up ground in the Murray Basin, buoyed by the successes at Four Eagles (catalyst) For personal use only • There are 106 exploration licences with Murray Basin cover in Victoria (inset) • 20,000km2 of 74,000km2 (27%) of gold exploration tenements are peg
Slide 10: Peer Group Explorers
PEER GROUP EXPLORERS Multiple exporers have taken up ground in the Murray Basin, buoyed by the successes at Four Eagles (Catalyst Metals) For personal use only • Projects are dominated by early phase (generative and greenfield) exploration programs. • Complicated by: • a typical poor response of oro
Slide 11: What is Stawell Type Gold?
WHAT IS STAWELL TYPE GOLD? The architecture of Stawell is different to other Victorian orogenic gold systems – intimately associated with basalt “domes”. For personal use only Delamerian (~500 Ma) deformation thrusts and structurally shortens and faults the rocks, a preperatiory step for gold minera
Slide 12: What is Stawell Type?
WHAT IS STAWELL TYPE? The architecture of Stawell is different to other Victorian orogenic gold systems – intimately associated with a basalt core For personal use only Source: Hough 2007 410-400 Ma A gold mineralisation event (440Ma) and later Devonian granites and granodiorites (400 Ma) control th
Slide 13: Target Metrics
TARGET METRICS Stawell has multiple mineralisation styles. All relate back to the basalt buttress in the core of the system. For personal use only Deposit model Stawell-type Gold (Stawell) Orogenic Gold (Ballarat, Bendigo) Dome-related Gold Narrrow-vein gold Gold (Moz) 50k - 5Moz Au 2 km strike!!! S
Slide 14: Wildwood
WILDWOOD The prospect is an excellent proof-of-concept and a test area. The resource is hard-fought but still has potential at depth. For personal use only Wildwood is a technical success – demonstrating orogenic gold on the margins of the Wildwood basalt. Shallow drilling along Inferred Mineral Res
Slide 15: Regional Geophysics
REGIONAL GEOPHYSICS ~500km2 of AGG gravity-gradiometry data was flown in 2021 (CGG) completing the data required for regional targeting under cover. For personal use only • Ground Gravity • Good coverage, ~1.5km spacing • Some gaps in station spacing • Shallow cover sequence • 287 Ground stations un
Slide 16: Full Data
FULL DATA Working with a best-available dataset (including mine info) to effectively test and rank Stawell-like targets under cover. For personal use only Inversion data with structures draped on surfaces provides (proxies) to depth of anomalies and shape. Structure and 3D Inversions Interpretation
Slide 17: Targeting Through Cover
TARGETING THROUGH COVER A geophysics-responsive rock-type intimately associated with mineralisation (ie basalts in “Stawell-types”) is quite helpful. For personal use only Regional Targets: ~Stawell corridor ~Proximal to significant faulting Geophysics ~Near-surface gravity +/- vectors magnetic high
Slide 18: Targeting Through Cover
TARGETING THROUGH COVER A geophysics-responsive rock-type intimately associated with mineralisation (ie basalts in “Stawell-types”) is quite helpful. For personal use only 2m at 1.14 g/t Au (WWA072) 1m at 3.5 g/t Au (WWA069) 3m at 3.27g/t Au (WWA094) 4m at 1.43g/t Au (WWA095) 6m at 4.54 g/t Au (WWA1
Slide 19: Exploration Program
EXPLORATION PROGRAM Historic and modern exploration provides a substantial dataset for continued exploration For personal use only 2021-2022 drilling RC Regional AC campaign drilling commenced in Oct 2021. AC To date, 406 holes (25,000m) completed testing 12 targets (90% Regional architecture succes
Slide 20: 2021-2022 Regional Air Core Program
2021-2022 REGIONAL AIR CORE PROGRAM A campaign program of AC drilling (25km) focussed on geophysical targets that best-matched targeting For personal use only 18 targets prioritised and tested (1st pass). 8 targets were previously undrilled. High success rate converting targets from “generative” to
Slide 21: 2022-2023 Program
2022-2023 PROGRAM Follow up on 8 highly anomalous targets under cover where geophysics, interpretation and results are “Stawell-like” For personal use only First - Follow up, close(er) spaced AC fence drilling on identified high-order targets. Second - Continue expanding regional program (time/meter
Slide 22: Full Data+
FULL DATA+ Numerical modelling of geophysical 3D inversion models may accelerate understanding of dilation zones at depth. For personal use only Structural events at the Stawell Mine control the likely location of gold mineralisation2 Example of numerically modelled dilation zones based on numerical
Slide 23: Exploration – NSM Advantage
EXPLORATION NSM Advantage: reduced hurdles to production enhance and amplify exciting exploration targets, and may shorten timelines. For personal use only 3-person full-time community team has An “ultra-light” regional drilling footprint A commercial arrangement with Stawell made substantial, focus
Slide 24: Gold potential under Murray Basin cover in the Stawell Zone
Gold potential under Murray Basin cover in the Stawell Zone A WORLD-CLASS BROWNFIELDS GOLD EXPLORATION COMPANY • The Stawell Gold Mine (5Moz historic and modern production for the field) provides the model for North Stawell Minerals’ exploration. SUMMARY • NSM has a dominant tenement position, with
Slide 25: Contact Details
For personal use only CONTACT DETAILS Authorisation for release and contact for additional information: Russell Krause, CEO, North Stawell Minerals. russell.krause@northstawellminerals.com North Stawell Minerals PO Box 265 Stawell, Vic, 3380 Australia info@northstawellminerals.com www.northstawellmi
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