Venari Minerals Nl · ASX:VMS
Venari Minerals Nl — Astute Metals NL — 2024 Annual Geoscience Exploration Seminar (AGES)
25 slides from Venari Minerals Nl's conference presentation, Apr 17, 2024
Slide 1: Investor Presentation - 2024 Annual Geoscience Exploration Seminar
17 April 2024 INVESTOR PRESENTATION 2024 ANNUAL GEOSCIENCE EXPLORATION SEMINAR Astute Metals NL (ASX: ASE, “Astute” or “the Company”) is pleased to advise that its Executive Director, Matthew Healy, will be presenting at the 2024 Annual Geoscience Exploration Seminar (AGES), which is to be held in A
Slide 2: Ambient Noise Tomography constrained gravity inversion at East Tennant
For personal use only Ambient Noise Tomography constrained gravity inversion at East Tennant ASX: ASE
Slide 3: Disclaimer and Forward-Looking Statement
DISCLAIMER AND FORWARD-LOOKING STATEMENT IMPORTANT NOTICE & DISCLAIMER The purpose of this presentation is to provide background information to assist readers in obtaining a general understanding of Astute Metals NL (‘Astute’ or ‘the Company’) and its objectives. Readers should make their own indepe
Slide 4: Overview
OVERVIEW BACKGRound For personal use only • Regional Geology • Project Location Leichhardt east prospect • Exploration work to date AMBIENT NOISE TOMOGRAPHY • Data acquisition • Results Geophysical modelling • Stripping back the cover • Constrained inversion – Windisp Model • Constrained inversion –
Slide 5: Background: Regional Geology
BACKGROUND REGIONAL GEOLOGY For personal use only The Warramunga Formation is characterised by turbiditic felsic volcanic derived sediments and felsic tuffs (deposited about 1862 Ma) under Georgina Basin cover sequences Syn-tectonic intrusive rocks of the Tennant Creek Suite comprising granites and
Slide 6: Background: Project Location
BACKGROUND PROJECT LOCATION For personal use only Location: • Between historic mining districts of Tennant Creek and Mount Isa • Ten granted tenements, three under application - 4,522km2 • East Tennant subject of the first National Drilling Initiative (NDI) Drill campaign IOCG deposits an attractive
Slide 7: A new frontier for mineral exploration
A new frontier for mineral exploration 5 March 2021 The first om the National Drilling Initiative have highlighted exciting new opportuniti the Northern Territory. alia, MinEx and the Nort ploration in the past because of the uncertainty jarkly Tablelands. data from the a ent's Exploring for the Fut
Slide 8: A New Copper-Gold Exploration Frontier
A NEW COPPER-GOLD For personal use only EXPLORATION FRONTIER • Staking hot-spot with tenure tightly- held by Majors and Junior Explorers • Prospective for world-class IOCG-style copper-gold deposits • 100% Astute-owned* Note: 7 *Subject to Shareholder Approval – see ASX: ASE 29 January 2024 ‘Astute
Slide 9: Leichhardt East: Exploration to Date
LEICHHARDT EAST EXPLORATION TO DATE For personal use only SRK Data Compilation and Project Area Study • Prospectivity review, solid geology & structural interpretations • Mineral systems analysis and fuzzy logic exploration targeting Geophysical Surveying and Modelling • Airborne magnetic surveying
Slide 10: Leichhardt East Petrography
LEICHHARDT EAST PETROGRAPHY 237m – Intensely 635m – Strongly albite- hematite-chlorite sericite-chlorite-quartz- altered rhyolitic vitric For personal use only altered and fractured medium-grained crystal tuff granite 360m – Interbedded 678.88m – series of medium- Ironstone/strongly grained, matrix
Slide 11: For personal use only
Planned 200x200 Infill Gravity Stations Ie Existing 200x200m Gravity Station Data ANT Survey Coverage Legend 4 EWA32284 a en © Dill Hole Collar (Astro) © _NDID&il Hole Collar [ ] ANT Survey Coverage _———} ent noise tomogr
Slide 12: Leichhardt East – Schematic Section
For personal use only LEICHHARDT EAST – SCHEMATIC SECTION What can be done to account for the gravitational effect of cover? Ambient Noise Tomography constrained gravity inversion
Slide 13: Ambient Noise Tomography: Data Acquisition
AMBIENT NOISE TOMOGRAPHY DATA ACQUISTION For personal use only Fleet Space Technologies (Fleet) Ambient Noise Tomography • Passive Seismic Method • Direct-to-satellite technology allows for review processing and analysis of data in close to real time • 64 Geodes provided by Fleet, 600x600m spacing •
Slide 14: Ambient Noise Tomography - Results
AMBIENT NOISE TOMOGRAPHY - RESULTS Three zones of spatially coherent velocity identified For personal use only • Low-velocity (2300-2500m.s-1) • Mid-velocity (2500-3300m.s-1) • High-velocity (3500-3800m.s-1) • Fourth zone of (2700-3200m.s-1) internal to mid-velocity zone Low-velocity zone situated i
Slide 15: Geophysical Modelling: Stripping Back the Cover
GEOPHYSICAL MODELLING STRIPPING BACK THE COVER For personal use only 1. Merge 2021 and 2023 gravity datasets 2. Merged geoidal Bouguer gravity anomaly (GBGA) calculated at 2.67g/cm3 and gridded at 65m 3. ANT ‘base of Georgina Limestone’ (BOGL) points (i.e. 2300-2500ms-1 velocities) extracted from AN
Slide 16: Georgina Geobody Response & Residual Basement
For personal use only GEORGINA GEOBODY RESPONSE & RESIDUAL BASEMENT Bouguer Gravity Response of the Georgina Geobody Residual basement geoidal Bouguer gravity anomaly
Slide 17: Residual Basement vs Total GBGA
For personal use only RESIDUAL BASEMENT vs TOTAL GBGA Residual basement geoidal Bouguer gravity anomaly Geoidal Bouguer gravity anomaly
Slide 18: Geophysical Modelling: Constrained Inversions
GEOPHYSICAL MODELLING CONSTRAINED INVERSIONS For personal use only Windisp Model • Model solution forced beneath the adjusted base of Georgina Basin surface • No further constraints in basement • Density cannot be assigned due to regional background removal • The average drillhole core density of 2.
Slide 19: Geophysical Modelling: Constrained Inversion
GEOPHYSICAL MODELLING CONSTRAINED INVERSION For personal use only ModelVision Parametric Model • Serial models comprising 2.5D polygonal prisms to fit gravity feature • 3 prisms that fit the anomaly have densities of 3.5, 3.5 and 3.7g/cm3 • These densities exceed that of dense mafic rocks such as me
Slide 20: Modelling Solutions – Windisp (RHS) & Parametric
For personal use only MODELLING SOLUTIONS – WINDISP (RHS) & PARAMETRIC
Slide 21: Modelling Solutions – Windisp (RHS) & Parametric
For personal use only MODELLING SOLUTIONS – WINDISP (RHS) & PARAMETRIC
Slide 22: Conclusions
CONCLUSIONS • Exploration under cover remains a technical challenge For personal use only • Being able to constrain the extents and characteristics of cover rocks enables the effects of them to be subtracted from gravity survey data • The extent to which cover can obscure the gravitational signal fr
Slide 23: Next Steps
NEXT STEPS For personal use only • Leichhardt East target to be drill tested in June-July 2024 • Success will provide proof of concept to test other targets (generated using the same workflow) at Leichhardt West and Banks 22
Slide 24: Footnotes and Previous Announcements / Competent Person Statement
Footnotes and Previous Announcements Competent Person Statement 1. Wood Mackenzie Copper Research, 2022 The information in this presentation that relates to Exploration Results associated with the Georgina project, and the information related in this report that relates to Nevada The information con
Slide 25: Contacts
For personal use only Contacts Matt Healy Nicholas Read Executive Director Media & Investor Relations mhealy@astutemetals.com nicholas@readcorporate.com.au +61 (0) 431 683 952 +61 (0) 419 929 046
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