Geomechanics.io

  • Free Tools
Sign UpLog In

Geomechanics.io

Geomechanics, Streamlined.

© 2026 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    Projects
    Sustainability

    Sunday Creek exploration tunnel: design and geotech takeaways for mine planners

    November 28, 2025|

    Reviewed by Joe Ashwell

    Sunday Creek exploration tunnel: design and geotech takeaways for mine planners

    First reported on Australian Mining

    30 Second Briefing

    Approval of a new underground exploration tunnel at Southern Cross Gold’s Sunday Creek antimony–gold project in central Victoria will allow drilling from underground rather than surface pads, targeting high‑grade shoots at depth while reducing disturbance to farmland and native vegetation. The tunnel will be driven from freehold land into the main mineralised corridor, enabling tighter drill spacing and improved structural definition of the orogenic system. For geotechs and mine planners, the shift to underground drilling will refine resource geometry, de‑risk future decline design and inform ground support regimes early.

    Technical Brief

    • Underground drilling from the tunnel is expected to materially shorten hole lengths compared with equivalent surface holes.
    • Shorter underground holes should improve core recovery and orientation quality, aiding structural and geotechnical logging.
    • Concentrating drilling underground reduces the number of surface pads, tracks and sumps requiring erosion control.
    • Tunnel development will require early installation of ground support, providing in situ data on rock mass behaviour.
    • Early underground access allows preliminary assessment of water inflows and potential requirements for future dewatering infrastructure.

    Our Take

    Antimony appears in only a small subset of the 73 Mining stories in our database, so Sunday Creek positions Victoria alongside a limited group of Australian jurisdictions with identifiable exposure to this critical mineral rather than just bulk gold plays.

    Most of the 184 tag-matched ‘Projects’ and ‘Sustainability’ pieces focus on battery metals like lithium and nickel, which suggests South Cross Gold’s antimony–gold work at Heathcote could appeal to policymakers looking to diversify Australia’s critical minerals base beyond the usual battery suite.

    With no other South Cross Gold items in our recent coverage, this Sunday Creek antimony and gold project effectively serves as the company’s flagship in Victoria, meaning permitting outcomes and community response here are likely to shape its social licence and access to capital for any follow-on assets in the state.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

    Related Articles

    Nth Cycle–Glencore $1bn offtake: project SHIELD implications for mine planners
    Mining
    about 11 hours ago

    Nth Cycle–Glencore $1bn offtake: project SHIELD implications for mine planners

    Nth Cycle has signed a binding 10-year offtake term sheet with Glencore worth an estimated $1 billion, securing 100% of black mass feedstock from Glencore’s US shredding network for Project SHIELD, its planned South Carolina battery materials refinery. The deal covers offtake of high-purity mixed hydroxide precipitate (nickel/cobalt MHP) and battery-grade lithium carbonate, and includes assessing an existing Glencore US site to accelerate construction alongside Nth Cycle’s 21,000-square-foot Fairfield, Ohio facility. Both parties will also evaluate deploying Nth Cycle’s portable ‘Oyster’ electrochemical refining system for black mass, copper and rare earth recovery in Europe and globally.

    Military Metals’ West Gore antimony-gold grant: drilling focus and notes for mine planners
    Mining
    about 11 hours ago

    Military Metals’ West Gore antimony-gold grant: drilling focus and notes for mine planners

    Military Metals has secured a C$100,000 Mineral Resource Development Fund grant from the Nova Scotia Department of Natural Resources to support a seven-hole, 1,750 m diamond drilling programme at the past-producing West Gore antimony-gold project in the Meguma camp. Drilling will test down-plunge extensions below historical mine workings and the Brook Vein stope, following historical intercepts up to 10.6 g/t gold and 3.4% antimony over 7.1 m. West Gore previously produced an estimated 7,761 t of 46% Sb concentrate and 7,149 oz gold but has seen only minor work since the 1960s.

    Mining ‘mini armies’ in Burkina Faso and Mali: security lessons for mine planners
    Mining
    about 11 hours ago

    Mining ‘mini armies’ in Burkina Faso and Mali: security lessons for mine planners

    Mining companies in Burkina Faso and Mali have built “mini armies” and effectively turned mine sites into “mini states” as central governments and local militaries lose control of territory, says George McLeod of Critical Risk Team. Operations are being maintained by focusing narrowly on secure logistics corridors for inbound supplies and outbound concentrate, allowing projects to function in what he calls a “complete and total power vacuum”. McLeod also expects China’s dominance in rare earths refining to erode within about three years as Australia, the US and Brazil commission new processing capacity and substitution technologies reduce demand.

    Related Industries & Products

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    Tunnelling

    Specialised solutions for tunnelling projects including grout mix design, hydrogeological analysis, and quality control.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.

    AllGeotechnicalInfrastructureHazardsEnvironmental