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

    Barton Gold Tunkillia assays: early pit design and cash-flow notes for planners

    September 1, 2026|

    Reviewed by Tom Sullivan

    Barton Gold Tunkillia assays: early pit design and cash-flow notes for planners

    First reported on Australian Mining

    30 Second Briefing

    Barton Gold has reported new high-grade intersections from resource-upgrade drilling in proposed starter pits at its Tunkillia gold project in South Australia, including 24m at 4.51g/t gold from 47m depth with a 2m interval at 16.7g/t within pit shells slated for the early mining sequence. Additional intercepts such as 11m of mineralisation support potential grade uplift in the near-surface mine schedule. For mine planners and geotechnical teams, the results strengthen the case for optimising initial pit designs and cash-flow modelling around these higher-grade zones.

    Technical Brief

    • Resource-upgrade drilling is focused specifically within the defined starter-pit shells at Tunkillia.
    • High-grade intervals occur from shallow depths, supporting conventional open-pit drill-and-blast access.
    • Intersections sit inside existing pit optimisation outlines, not in step-out or greenfield positions.
    • Results target early-sequence benches, informing detailed phase design and pushback geometry.
    • Grade control strategy will likely prioritise tighter drilling spacing over these high-grade domains.
    • Geotechnical logging from the same holes can refine slope design parameters for the starter pits.
    • Metallurgical variability testing on these higher-grade zones becomes critical for early plant performance assumptions.

    Our Take

    The 24m at 4.51g/t from 47m at Tunkillia fits with a run of strong results our database has tracked since Barton Gold’s 39,000m phase 2 campaign there, suggesting the pre-feasibility study work with GR Engineering Services is being underpinned by increasingly robust grade continuity in the optimised pit shell area.

    With both Tunkillia and the Challenger gold project in South Australia generating high-grade intercepts in recent months, Barton Gold is building a multi-asset story in a single jurisdiction, which can simplify permitting and infrastructure planning compared with peers spreading growth across multiple states.

    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

    Mining
    about 3 hours ago

    Epiroc order at MMG’s Khoemacau Copper Mine: fleet and automation notes for engineers

    Epiroc has secured a large underground mining equipment order from MMG Limited for the Khoemacau copper mine in Botswana, where MMG is working with Chinese contractors China Huaye and 23MCC under the ownership of China Minmetals Corp. The package is expected to include core underground production fleets such as face drilling rigs, loaders and mine trucks suited to deep, high-tonnage copper operations. For engineers, the deal signals long-term mechanised development at Khoemacau and likely standardisation around Epiroc’s automation-ready platforms and digital support tools.

    Mining
    about 3 hours ago

    Cosmic Boy Concentrator conversion: design and tie-in notes for project engineers

    GR Engineering Services has signed an EPC contract with Myamba Minerals, a Medallion Metals subsidiary, to redesign, procure, construct and commission the conversion of the existing Cosmic Boy Concentrator in Western Australia. The brownfield plant, originally built for nickel, will be reconfigured for Myamba’s processing requirements, allowing reuse of major infrastructure rather than building a new concentrator. For project engineers, the deal signals upcoming detailed process design, tie-ins to existing utilities and structural upgrades around the grinding, flotation and tailings handling circuits.

    Mining
    about 3 hours ago

    NRW’s Karara mine extension to 2032: planning and fleet notes for engineers

    NRW Holdings’ Mining division has secured a Letter of Award extending its mining services contract at the Karara magnetite iron ore mine in Western Australia by five years, pushing the term from March 2027 to February 2032. The extension covers continued load-and-haul, drill-and-blast and ancillary mining services for Karara Mining Ltd’s large-scale, 8+ Mt/y magnetite operation, which uses high-pressure grinding rolls and magnetic separation. The longer tenure gives NRW greater certainty for fleet deployment, labour planning and maintenance scheduling across the Mid West project.

    Related Industries & Products

    Mining

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

    Construction

    Quality control software for construction companies with material testing, batch tracking, and compliance management.

    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