29Metals’ Post

PAPERS | SCT share technical papers authored by SCT engineers on our website. This catalogue of papers provide valuable insights and practical knowledge on a range of geotechnical aspects. This paper "Influence of seam-level bedding plane shears on overburden behaviour around underground coal mines," was recently presented by Dr Ken Mills at the Resource Operators Conference (ROC) in Wollongong. It provides an overview of the origins of bedding plane shears, a description of the characteristics of bedding plane shears that occur close to seam level, a review of the influence of bedding planes shears on horizontal stress relief and the mechanical properties that can be inferred from high-resolution subsidence monitoring, and a review of related phenomena including stress concentrations at geological structure, and seismic events following overburden caving and formation of a longwall goaf. View the paper via the link below. https://buff.ly/496GOHn #publications #shear #beddingplane #geomechanics #stress #subsidence #mining #geotechnicalengineer #longwall #paper

#ASXNews Record High-Grade Tin Intersection from Severn Deposit at Heemskirk Stellar Resources is pleased to report first #drilling results from the ongoing drill program at its Heemskirk #Tin Project in Western Tasmania. • Results received from first two holes of the 2024 drill program at the Heemskirk Tin Project. • Drilling is targeting the Severn and Queen Hill deposits upgrading Inferred resources to the Indicated category and testing for extensions to the 2023 Mineral Resource Estimate (MRE). • At the Severn deposit, drillhole ZS166 has returned multiple high-grade zones of mineralisation downhole including the best intercept on record on a grade thickness basis (Sn%m). Results included: o 20.9m @ 1.97% Sn from 431.0m including; 14.8m @ 2.40% Sn from 437.1m, and includes, 5.9m @ 3.36% Sn from 437.1m o 4.0m @ 1.67% Sn from 510m o 6.0m @ 1.63% Sn from 522m o 5.0m @ 1.70% Sn from 533m including 1.0m @ 7.34% Sn from 533m • Significantly, the intersections are within the Inferred category of the 2023 MRE and have returned significantly higher grade and thickness than predicted by the current Mineral Resource model. • Mineralisation remains open down plunge with the nearest hole a further 145m down dip. • At Queen Hill, drillhole ZQ165 confirmed northern extension for follow up, returning: o 4.0m @ 0.52% Sn from 310.0m • A total of 8 holes for 3600 metres have been completed to date of the planned 24 hole 9,500m drill program, as part of the prefeasibility study now underway. • A Geophysical crew is mobilising to site in early December to complete fixed loop surface and down hole electromagnetic (DHEM) surveys at Severn and Queen Hill as part of the resource expansion program. #SRZ Managing Director Mr Simon Taylor commented: “The record intersection in the first results from our prefeasibility drilling program is outstanding and emphasises that Heemskirk is a large tin system with all the hallmarks for development into a world class, long-life tin operation. Our recent base case Scoping study confirms a 10-year mine life utilising only the Indicated resources from our MRE, which is likely to grow substantially when we update our resource in 2025. “We currently have 3 drill rigs onsite aiming to upgrade the substantial Inferred material to the Indicated category and to explore for extensions to the system with a down hole electromagnetic survey commencing next month. In tandem, our prefeasibility and baseline environmental studies are progressing well. We look forward to providing further updates on prefeasibility activities, including drilling results, ore sorting and metallurgical results, as they come to hand.” See the full announcement: https://loom.ly/g_ssAL8 #StellarResources #ASX #Mining #exploration

🌟 Open-Pit vs. Underground Mines in GEOVIA Surpac: What's Easier to Design? 🌟 In the mining world, designing open-pit mines is often simpler due to their straightforward geometries and workflows. Underground mines, on the other hand, demand advanced skills to manage complex layouts and constraints like ventilation and ground stability. 💡 Here's a quick breakdown: 🔹 Open-Pit Mines: Simpler geometry, less constraints, easier workflows. 🔹 Underground Mines: Complex designs with multiple constraints, but high industry demand. 👉 If you’re starting in Surpac, open-pit mine design is a great place to begin. But mastering underground designs can make you a standout professional in the mining industry. 💻 Interested in learning more? Check out my latest projects on Surpac, where I’ve tackled both types of mines! Let’s connect and discuss more about mining innovations. 🔗 #Surpac #MiningEngineering #Geology #Surveying #MinePlanning #DigitalTerrainModeling #MiningSoftware #GeoviaSurpac #MiningIndustry #UndergroundMining #OpenPitMining #MiningIndustry #GEOVIASurpac #MineDesign #BlockModeling #ResourceEstimation #PitOptimization #3DModeling #MiningTechnology #EfficiencyInMining #SustainableMining

NOTE : Hypsographic Curve A hypsographic curve shows how much of Earth's surface is at different heights or depths. It is useful for mining engineering because it helps us understand the shape of the land and where resources might be found. Most land is close to sea level or in mountain ranges, while the ocean floor is much deeper. For mining, this curve can show which areas might have valuable minerals. Mountains and high areas can have certain types of ores, like copper and gold, which often form in geological processes related to tectonic activity. Understanding these patterns helps mining engineers decide where to explore and dig. The curve can also help in planning mining operations. For example, if a mining site is at a higher elevation, engineers need to consider how to transport materials and equipment safely. They must also assess the stability of slopes, as steep areas may be prone to landslides or erosion. Additionally, hypsographic data can be useful for evaluating environmental impacts. Mining engineers can use this information to plan how to minimize damage to the landscape and water systems, especially in sensitive areas like river valleys and coastal regions. By analyzing the hypsographic curve alongside geological maps, mining engineers can develop effective strategies for resource extraction that are safe and sustainable. #Geologists #EnvironmentalScientists #GeographicInformationSystem #GIS #Specialists #EarthScienceResearchers #GeographyProfessors #EnvironmentalEngineers #Oceanographers #GeospatialDataAnalysts #HypsographicCurve #MiningEngineering #Geology #MineralResources #OreDeposits #EnvironmentalImpact #ResourceManagement #TectonicActivity #SustainableMining #SlopeStability #GeospatialAnalysis #MiningOperations #Exploration #MiningSafety #NaturalResources #ASOIU #AzerbaijanStateOilandIndustryUniversity #BOEC #BakuOilEnergeticCollage #AzerbaijanEngineers #SOCAR #SOCARDownstream #SOCARDownstreamManagement

How do you compare? Blasting in open surface mining and tunnelling shares the fundamental objective of excavating and fragmenting rock to facilitate extraction, but their methodologies and contexts differ significantly. In open surface mining, blasting operations occur in expansive, exposed environments, typically to extract minerals or ores from large open pits. Blasting in tunnelling the blasting usually starts from the centre (cut holes) and all other holes are blasted towards centre in a designed sequence. Which one do you prefer? Which one do you have experience? Which one is easier? Any technical comments/observation? We have covered drill and blast techniques in our course. Message us if you are interested and want to know more or click the link below https://lnkd.in/ePXRpUk5 Follow us at Tunnel Engineering #blasting #tunnellingcourse #tunnelcourse #tunnelling #mining #miningengineering #geology #tunneleducation #tunnellingpage #tunelfuturistico #tunelizacion #tunelfuturistico #tunnelengineering #tunnel #tunnelengineeringisthefuture #tunnel #tunnelling #tunneling #tunel #civilengineering #miningengineering #learntunnelling #geotechnicalengineering #geologist #undergroundconstruction #undergroundspace #undergroundproject #tunellingtechnique

Beauty

Navigating Tunneling Challenges: Surface Mining Knowledge vs. Tunneling Reality Challenges can emerge in tunnels when surface mining knowledge is transposed to tunneling 🚇. Key distinctions between surface mining and tunneling include: 1. Dimensional accuracy tolerance 📏 2. Powder factor 💥 3. Production rates 📈 4. Stability of the overhead roof 🏠 5. Purpose 🎯

Planning Give best Results

Understanding the Block Model is the First Key to Mine Planning! Understand the model set up , the fields and their calculations , and further doing the checks as only God is infallible. Otherwise you may end up in GIGO “ Garbage In Garbage Out “

American Rare Earths (ASX: ARR | OTCQX: ARRNF and AMRRY) is pleased to announce the results of the “Halleck Creek Scoping Study Technical Report” compiled by Stantec Consulting Services Inc (Stantec - an independent engineering consulting firm). Located in the major mining hub of Wyoming, USA, the Halleck Creek project provides compelling economics and the ARR board has unanimously recommended the project advance to the next phase of development. American Rare Earths CEO, Donald Swartz, commented on the results: “The work presented herein is a culmination of several years of hard work that highlights the potential of Halleck Creek to be the next world-class REE project. The study has revealed a truly elegant solution, as its simplicity unlocks the potential to decouple Western supply chains from Chinese oligopolies. The favourable geology combined with conventional technology, low-operating expenses, modest initial capital expenditures, associated with an expedited path to production have converged to offer a project that is compelling – even when compared against the heavily subsidised Chinese state-owned entities. As the Western downstream industries for rare earths are being advanced from a nascent stage, we have right-sized the initial phase of development to produce a reasonable amount of separated rare earths, within a project area which is highly scalable over time. This is a project that could yield transparent pricing, provide reliable supply, and allow the U.S. to REEshore this industry.” For detailed insights, please visit our website https://lnkd.in/gVRpBJrH or the link to the full report in our profile. #RareEarths #SustainableMining #HalleckCreekProject $ARR Ken Traub John Mansanti Geoffrey Hill Christopher Gibbs Melissa Sanderson Sten Gustafson Paul Zink Donald Swartz Dwight Kinnes Jose A. Rico Wayne Kernaghan SUSAN ASSADI Richard Hudson Kayla Y.