Fresh Thinking by Optiro

In this episode, Dr Gregory Zhang (Resource Geologist) is joined by Hamish Guthrie (Mining Engineer) to explore how resource geologists can better understand and contribute to mine planning. From the importance of resource classification to the value of including waste domain data, Hamish shares insights from over 25 years of experience in mining operations and consulting. They also discuss the benefits of adding more geological detail - even in early-stage projects - and how small decisions in modelling can have major downstream implications. Whether you're a resource geologist, mine planner, or simply curious about how modelling feeds into real-world mining strategies, this episode offers practical takeaways and fresh thinking. Key Points Covered 00:04 – Introduction 01:05 – The typical workflow of mine planning 02:00 – Why modifying factors and mining constraints matter 03:01 – Resource classifications: how confidence impacts planning 05:00 – Adding more detail to the resource model: is it worth it? 06:00 – Should we model waste domains? 07:25 – What mine planners really want from geologists 08:30 – Including depletion, sterilised zones and geotechnical data 09:30 – ESG and the importance of understanding waste rock behaviour 10:00 – Geological inputs that influence plant performance 11:00 – Why even limited early data is valuable 11:40 – Final thoughts and podcast close

In this episode of Fresh Thinking, Senior Mining Consultant Pedro Ladeira sits down with Snowden Optiro General Manager Tarrant Elkington to explore the real value behind variable cutoff grades in mine planning. From NPV optimisation to stockpiling strategies and the practical challenges of implementation, this conversation is packed with insights that can help elevate your project's performance. Whether you're planning an open pit or underground mine, this episode unpacks how dynamic cutoff strategies can unlock significant long-term value - sometimes increasing NPV by 20% or more. Key Moments: 0:34 – What is a marginal vs. optimised cutoff grade?  1:57 – Why higher cutoffs can increase NPV 3:59 – Open pit vs. underground implications 6:02 – The role of opportunity cost and processing constraints 8:46 – Costs and downsides of elevating cutoff grades 12:14 – Life-of-mine length and its influence on optimisation 16:03 – Stockpiling as a strategic asset 19:04 – Real-world impact: 20% NPV uplift 20:26 – Operational challenges and practical implementation Takeaway: Cutoff grade optimisation isn't just a technical tweak - it's a powerful lever for mine value that deserves more attention in strategic planning. If you would like to contact Tarrant and Pedro: contact(at)snowdenoptiro.com Don't forget to SUBSCRIBE for more straight-talking episodes from the world of mining and geology. Fresh Thinking by Snowden Optiro is available on YouTube, Spotify, Apple Podcasts, Amazon Music, Libsyn and all your favourite platforms. Snowden Optiro is a resources consulting and advisory group that provides independent advice, consulting and training to mining and exploration companies, their advisors and investors. We help mine developers to advance their projects, mining companies to improve their operations and their professionals, and investors to de-risk their investments by the provision of quality advice, training and software in the field of Mineral Resources and Mineral/Ore Reserves. Find out more at: https://snowdenoptiro.com/ Professional Development Training: https://snowdenoptiro.com/professional-development/

In this episode, our Perth based Managing Consultant Susan Havlin chats with our Principal Consultant Jane Levett about some of the common misconceptions that crop up in resource estimation. From domaining to density to classification confidence - it's all on the table. If you've ever wondered why your model didn't quite hold up under scrutiny, or why 10x10 drilling doesn't automatically mean measured, this one's for you. If you're a resource geologist, investor, or anyone who's ever looked at a model and thought “is that really right?” - this one's worth a listen. In this episode:  Why domaining is still critical — and why software can't always do the thinking for you How over-relying on grade shells can send you down the wrong path The myth of “one density sample per domain” Why classification is about more than just drill spacing How ignoring geological controls can throw your whole model off What kriging metrics and estimation quality can (and can't) tell you Don't forget to Subscribe for more straight-talking episodes from the world of mining and geology. Fresh Thinking by Snowden Optiro podcasts are available on YouTube, Spotify, Apple Podcasts, Amazon Music, Libsyn and all your favourite platforms.  Snowden Optiro is a resources consulting and advisory group that provides independent advice, consulting and training to mining and exploration companies, their advisors and investors. We help mine developers to advance their projects, mining companies to improve their operations and their professionals, and investors to de-risk their investments by the provision of quality advice, training and software in the field of Mineral Resources and Mineral/Ore Reserves. Find out more at: https://snowdenoptiro.com/ Training: https://snowdenoptiro.com/professional-development/ #FreshThinking #SnowdenOptiro #GeologyPodcast #ResourceEstimation #MiningGeology #JORC #Geostats #Domaining #MiningData #MineralResources

With more than 35 years of industry experience, Bob Jankovic our Snowden Optiro Executive Consultant brings first-hand insights from both the mining and banking sides of the table - mining companies and the capital markets. Together, our General Manager Tarrant Elkington and Bob discuss the value investment banks add to project development, the skills technical professionals bring to finance, and how junior miners can attract the right kind of attention.  Whether you're an executive, a consultant, or just curious about how major mining projects get funded, this episode has something for you. Key Moments 00:04 – Introduction and welcome 01:06 – What do investment banks actually do in mining? 02:58 – The technical expertise needed in investment banking 04:50 – The value investment banks bring to project development 06:30 – Equity vs. M&A: How banks support mining at different stages 08:00 – The link between technical confidence and funding success 09:04 – How junior miners can engage investment banks 10:35 – Do investors really understand mining? (Spoiler: Yes!) 12:00 – Lessons from working on both sides—operations and banking 13:15 – Final thoughts and why operational experience matters Enjoyed the episode? Don't forget to like, subscribe, and click the

In this episode of Fresh Thinking by Snowden Optiro, our General Manager Tarrant Elkington is joined by our Principal Consultant Matt Walker to explore what really goes into ASX announcements of Mineral Resource Estimates (MREs). They discuss the minimum reporting requirements under the JORC Code, the role of the Competent Person, and common red flags to watch for - such as unconstrained estimates, overuse of superlatives, and misleading imagery. Whether you're a geologist, mining professional, or investor, this episode offers practical insights into how MREs are prepared, reported, and interpreted - it will help you to... read between the lines! This podcast at a glance: 00:04 – Introduction and episode focus – MREs in ASX announcements 01:14 – Guest introduction: Matt Walker and his experience with MREs 01:47 – Minimum requirements for reporting an MRE under JORC Code 03:08 – ASX Listing Rules and mandatory disclosure elements 05:00 – Continuous disclosure and minimum vs best practice 06:23 – When and why MREs are announced 08:12 – Red flags and what geologists look for in MREs 10:10 – Peer comparisons, competent person styles, and report 'fingerprints' 11:00 – Internal vs external resource reporting 13:00 – Importance of resource constraint and economic extraction 15:05 – Reading resource classifications and visual representations 17:18 – Use of gram-metres and understanding deposit width 18:03 – Why classification matters – insights from the Parker Challenge 19:31 – Interpolation vs extrapolation in block models 21:00 – Classification confidence and converting to reserves 22:00 – Wrap-up and final thoughts If you would like to contact Tarrant or Matt: contact(at)snowdenoptiro.com

What do banks look for before funding a mining project? In this episode of Fresh Thinking by Snowden Optiro, Tarrant Elkington is joined by our Executive Consultant Bob Jankovic to explore the technical side of mining finance. With over 35 years' experience across North and South America, and deep expertise inside major banks, Bob offers a rare look behind the scenes of what lenders expect from feasibility studies, resource models, and risk assessments. Whether you're preparing to raise capital or just curious about the lending landscape, this is a must-listen for anyone involved in mine development. If you would like to contact Tarrant or Bob: contact(at)snowdenoptiro.com

In this episode of Fresh Thinking, Senior Consultant Dr Gregory Zhang and Executive Consultant Ian Glacken explore more advanced mineral resource classification methods. Building on Part 1, they discuss the widely used 90/15 approach, delve into the role of scorecards, and discuss how classification should go beyond drill spacing alone. A practical conversation for geologists, resource modellers, and anyone involved in technical reporting.  This podcast at a glance:  00:45 – What is the 90/15 approach and how is it applied? 02:50 – Production volumes and how they link to confidence levels 05:00 – Why drill spacing alone isn't enough 06:50 – Conditional simulation and its role in classification 07:55 – Introduction to the scorecard method 10:50 – Strengths and subjectivity in the scorecard approach 11:45 – Real-world case study applying 90/15 and scorecards 13:00 – Final thoughts on classification beyond simple metrics If you would like to contact Ian and Gregory: contact@snowdenoptiro.com

In this episode of Fresh Thinking, Dr Tarrant Elkington Snowden Optiro's General Manager, speaks with Dr Leon Lorenzen about the critical role of metallurgical and processing due diligence in mining projects. They explore how process plants are evaluated, why throughput is often a hidden risk, and the challenges of forecasting performance in both operating and new mines. Whether you're reviewing an acquisition or building a new operation, this discussion provides valuable insight into identifying red flags and understanding the real-world complexity behind the numbers. This podcast at a glance: 00:20 – What due diligence really means in a processing context 01:30 – Using the process design baseline to evaluate plant performance 03:00 – Why high recoveries can be misleading without throughput context 04:50 – Common red flags: when ounces look good, but costs and feed rates don't 07:00 – The importance of test work and geological input in forecasting 09:30 – Case study: transition from open pit to underground and its impact on throughput 10:00 – Unique risks with new mines and the ramp-up phase 13:00 – Why expertise and independent evaluation are essential for sound investment decisions If you would like to contact Tarrant and Leon: contact@snowdenoptiro.com

In this Fresh Thinking episode, we're discussing one of mining's toughest technical challenges: refractory gold ores. Dr Tarrant Elkington, Snowden Optiro General Manager sits down with metallurgical expert Dr Leon Lorenzen to explore why some gold refuses to come quietly, and the high-stakes processing paths needed to recover it. From pressure oxidation to bioleaching and ultrafine grinding, this episode uncovers the costs, complexities, and future of refractory ore treatment. If you're a geologist, metallurgist, or investor—this one's essential listening. This podcast at a glance: 00:00 – Welcome & Introduction 00:45 – What is refractory gold? And why is it a problem? 02:30 – The role of geology and early detection 04:00 – How refractory ore impacts project economics 05:15 – Overview of processing methods: POX, BIOX, Albion, roasting 07:30 – How to choose the right processing path 09:00 – Real-world examples of refractory gold plants 11:00 – The future: centralised hubs and economic scale 12:30 – Final thoughts and advice for developers and investors If you'd like to connect with Tarrant and Leon: contact@snowdenoptiro.com This video podcast is also available as a video podcast on our Snowden Optiro YouTube channel: https://www.youtube.com/@SnowdenOptiro

In Episode 106 of Fresh Thinking by Snowden Optiro, Executive Consultants Ian Glacken and Graeme Lyall discuss the practical realities of mineral resource classification. This episode explores current best practices and highlights the importance of combining data-driven methods with geological insight. Whether you're a junior or major, this conversation will help sharpen your classification strategy and confidence levels. This podcast at a glance: ⏱️ 00:15 – Why resource classification matters across global reporting codes ⏱️ 01:55 – Introduction to the 90-15 approach for confidence-based classification ⏱️ 04:00 – The dangers of the “spotted dog” effect and how to avoid it ⏱️ 05:21 – Calculating drill spacing the smart way: distance-to-holes technique ⏱️ 07:04 – Alternatives to drill spacing: kriging variance and its limitations ⏱️ 08:00 – Why close spacing doesn't always mean high confidence ⏱️ 09:01 – The two-indicator approach: origins, application, and benefits ⏱️ 13:01 – Assumptions, limitations, and when to adjust the 90-15 rule ⏱️ 17:00 – When the two-indicator method doesn't fit: deposit-style considerations ⏱️ 18:00 – What's coming in Part 2: simulation and scorecard approaches If you would like to contact Ian and Graeme: contact@snowdenoptiro.com

In this episode of Fresh Thinking by Snowden Optiro, Executive Consultant Ian Glacken interviews Senior Mining Consultant Pedro Ladeira on a topic that's often overlooked—but critically important: fixed costs in strategic mine planning.   This podcast at a glance: 00:00 – Introduction: Why fixed costs matter in mine planning 01:00 – How variable costs are typically applied in mine plans 02:20 – What are conditional fixed costs and why they matter 03:50 – Impact of fixed costs on strategic planning and scheduling 05:10 – Reclaiming low-grade stockpiles and the role of fixed cost reduction 06:30 – Fixed vs variable costs in processing plants 07:45 – Stockpiling strategy and mine life optimisation 08:50 – When to start accounting for fixed costs in planning 09:30 – Final thoughts: Using fixed costs to optimise your NPV   This is a must-listen for anyone involved in mine planning, financial modelling, or operational strategy.   If you would like to contact Pedro or Ian: contact@snowdenoptiro.com  

In this episode of Snowden Optiro's Fresh Thinking podcast, host Pedro Ladeira (Senior Consultant) is joined by Hamish Guthrie (Managing Consultant, Mining Engineering) to explore the critical role of cut-off grades in mining. From defining what a cut-off grade is to explaining how it's applied across different operations and project stages, they discuss the strategic, economic, and technical factors that make this small number a big deal.   If you would like to contact either Hamish or Pedro: contact@snowdenoptiro.com   This Podcast at a Glance

Discover how Cornwall's rich mining history shaped the global mining industry. In this episode of Fresh Thinking by Snowden Optiro, Executive Consultant Ian Glacken chats with Senior Consultant Laurie Hassall about the legacy of Cornish mining. From tin and copper to tungsten, they explore the region's innovations, the export of mining expertise worldwide, and what the future holds for mining in Cornwall. If you'd like to connect with Laurie Hassall and Ian Glacken, please email them: contact@snowdenoptiro.com This podcast at a glance: 00:00 – Introduction to the episode and guests 00:48 – Why Cornwall became a mining hub and its early beginnings 01:50 – The peak of Cornish mining: key periods and metals 03:53 – Ingenious innovations from Cornish miners (steam engines, safety lamps & more) 05:54 – How Cornish mining practices spread worldwide 06:41 – The social and cultural impact of mining on Cornwall 07:29 – Tungsten's role in Cornwall's mining story and Laurie's direct experience 08:39 – What's next? The future outlook for mining in Cornwall 10:18 – Final thoughts and reflections This audio podcast is also available as a free video podcast on Snowden Optiro's YouTube channel:  https://youtube.com/playlist?list=PLZm0zjSNmpo27fX_tfI79Yzhxy3VXjvMt&feature=shared Snowden Optiro is a resources consulting and advisory group that provides independent advice, consulting and training to mining and exploration companies, their advisors and investors. We help mine developers to advance their projects, mining companies to improve their operations and their professionals, and investors to de-risk their investments by the provision of quality advice, training and software in the field of Mineral Resources and Mineral/Ore Reserves. Snowden Optiro: https://snowdenoptiro.com Professional Development Courses: https://snowdenoptiro.com/professional-development/ contact@snowdenoptiro.com

Discover how battery electric vehicles (BEVs) are transforming underground mining operations. In this episode of Fresh Thinking by Snowden Optiro, Managing Consultant Hamish Guthrie chats with Principal Consultant Sarah de Vries about the significant safety and health benefits of battery-operated vehicles (BEVs)—improved air quality, lower heat, reduced noise, and less vibration. They also discuss the challenges of transitioning to electric fleets and the future of mine electrification.   This podcast at a glance: 0:00 – Introduction 1:00 – Why are mining companies moving towards BEVs? 1:40 – How BEVs improve underground air quality and OHS 2:45 – Heat reduction: BEVs vs Diesel engines 3:45 – Noise & vibration reductions with BEVs 5:00 – Applications that benefit most from BEVs 5:50 – Challenges of adopting BEVs underground 7:00 – Future of mine electrification   If you'd like to connect with Hamish Guthrie and Sarah de Vries, please email them: contact@snowdenoptiro.com   This video podcast is also available as a free video podcast on our Snowden Optiro YouTube channel.   Snowden Optiro is a resources consulting and advisory group that provides independent advice, consulting and training to mining and exploration companies, their advisors and investors.   We help mine developers to advance their projects, mining companies to improve their operations and their professionals, and investors to de-risk their investments by the provision of quality advice, training and software in the field of Mineral Resources and Mineral/Ore Reserves.   https://snowdenoptiro.com https://snowdenoptiro.com/professiona...   contact@snowdenoptiro.com    

101: Machine Learning – Case Study   In this podcast, Susan Havlin, Managing Consultant APAC and Dr Gregory Zhang, Senior Geology Consultant discuss the application of machine learning for geological domaining in Resource Estimation, with specific reference to a project that Dr Gregory Zhang worked on.   This podcast at a glance: 1.21 A case study using the k-means algorithm 0.55 Why was an alternative approach needed? 2:10 What is the k-means algorithm and why is it suitable? 3:10 What steps were used to apply k-means to the data set? 4:20 What were the key outcomes? 5:20 Any limitations? 7:40 Speed of getting results 8:12 Who can use this method?   If you'd like to connect with Susan Havlin and Dr Gregory Zhang, please email them: contact@snowdenoptiro.com   This audio podcast is also available as a free video podcast on Snowden Optiro's YouTube channel.   Snowden Optiro is a resources consulting and advisory group that provides independent advice, consulting and training to mining and exploration companies, their advisors and investors. We help mine developers to advance their projects, mining companies to improve their operations and their professionals, and investors to de-risk their investments by the provision of quality advice, training and software in the field of Mineral Resources and Mineral/Ore Reserves. https://snowdenoptiro.com https://snowdenoptiro.com/professiona... contact@snowdenoptiro.com

In this episode, Ian Glacken our Executive Consultant in Perth, Australia discusses the thorny and divisive topic about whether we should be trying to minimise conditional bias in an estimate or should we be striving for a better idea of grade/tonnage relationship at the time of mining? Ian is joined in this discussion by Graeme Lyall our Executive Consultant who is based in Santiago, and Dr Oscar Rondon, Principal Geostatistician Datamine.   1:26 This podcast video at a glance   3:03 What is conditional bias   4:19 Schools of thought about conditional bias   6:19 The kriging oxymoron   7:00 The least of 2 evils   7:47 Important difference between the 2 schools of thought   8:40 Conditional bias and smoothing   11:42 What is KNA?   15:00 Discrete Gaussian method   Suggested papers to read. D.G Krige - A practical Analysis of the effects of spatial structure and of data available and accessed, on conditional biases in ordinary kriging. Quantitative kriging neighbourhood analysis for the mining geologist - A description of the method with worked case examples by J.Vann, S. Jackson and Olivier Bertoli.   If you'd like to connect with Ian, Graeme or Oscar please email them: contact@snowdenoptiro.com   This podcast is also available as a free video podcast on Snowden Optiro's YouTube channel: https://www.youtube.com/playlist?list=PLZm0zjSNmpo27fX_tfI79Yzhxy3VXjvMt   Snowden Optiro is a resources consulting and advisory group that provides independent advice, consulting and training to mining and exploration companies, their advisors and investors. We help mine developers to advance their projects, mining companies to improve their operations and their professionals, and investors to derisk their investments by the provision of quality advice, training and software in the field of Mineral Resources and Mineral/Ore Reserves. https://snowdenoptiro.com https://snowdenoptiro.com/professiona... Email: contact@snowdenoptiro.com

In this episode, Susan Havlin, our Managing Consultant – Geology, and Gregory Zhang, our Senior Geology Consultant, discuss the advantages of developing customised internal tools to tackle technical challenges. They illustrate this with a case study on accurately modeling and managing resource depletion. This podcast video at a glance: 00:10 Introduction 01:06 Why is it so difficult? 02:18 Errors involved in using the traditional approach 02:45 Applying these methods 03:53 The solution 09:33 Lessons learned If you'd like to connect with Susan and Gregory, please email them: contact@snowdenoptiro.com This Fresh Thinking by Snowden Optiro audio podcast is also available as a video podcast on Snowden Optiro's YouTube channel. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development. Snowden Optiro is a resources consulting and advisory group that provides independent advice, consulting and training to mining and exploration companies, their advisors and investors. We help mine developers to advance their projects, mining companies to improve their operations and their professionals, and investors to derisk their investments by the provision of quality advice, training and software in the field of Mineral Resources and Mineral/Ore Reserves.  https://snowdenoptiro.com https://snowdenoptiro.com/professional-development/ contact@snowdenoptiro.com

In this episode of Fresh Thinking by Snowden Optiro, Senior Consultant Laurie Hassall and our EMEAA Regional Manager Julian Aldridge discuss the critical steps in moving from a Pre-Feasibility Study to a Feasibility Study, focusing on refining project concepts and ensuring economic viability.   This podcast at a glance: 00:15 Introduction 00:38 Difference between PFS and FS 02:20 Various steps for a Pre-Feasibility Study 05:51 The changes when progressing to a Feasibility Study 09:23 Costs and time allocation for Pre-Feasibility and Feasibility Studies 10:00 Permits 11:45 Risks of not doing a Pre-Feasibility Study   Join our experts as they explores the topic of 'Pre-Feasibility Studies' in the episode 98 of the Fresh Thinking podcast.  If you'd like to connect with Laurie, please reach out to them at contact@snowdenoptiro.com.  This podcast is also available as an audio podcast on @Libsyn, @Spotify, and @Apple Podcasts. Snowden Optiro is a resources consulting and advisory group that provides independent advice, consulting and training to mining and exploration companies, their advisors and investors. We help mine developers to advance their projects, mining companies to improve their operations and their professionals, and investors to derisk their investments by the provision of quality advice, training and software in the field of Mineral Resources and Mineral/Ore Reserves. https://snowdenoptiro.com/ contact@snowdenoptiro.com https://snowdenoptiro.com/professionaldevelopment/

In this episode of Fresh Thinking by Snowden Optiro, Executive Consultant Ian Glacken and Principal Consultant Jan Graham continue their deep dive into recoverable resources. In Part 2, they tackle localisation, LUC vs. MIK, SMU estimate misconceptions, and what engineers really need to know. This podcast episode at a glance:  00:05 Introduction 00:46 Issues with localisation and its importance 02:05 The main localisation method 04:11 How does it work with LUC and MIK? 04:49 How is it different with simulation? 05:33 MIK and localisation 06:19 Main issues associated with the LUC or LMIK 06:28 Common SMU estimate misconceptions 08:02 How should engineers use the model NOTES: Localised Uniform Conditioning (LUC): A New Approach for Direct Modelling of Small Blocks. Author: Marat. Z. Abzalov Join our experts as they explore the topic of Recovery Resources versus Recoverable Reserves Part 2 in the episode 97 of the Fresh Thinking podcast.  If you'd like to connect with Ian and Jan, please reach out to them at contact@snowdenoptiro.com.  This podcast episode is also available as an audio podcast on @Libsyn, @Spotify and @Apple Podcasts.  Snowden Optiro is a resources consulting and advisory group that provides independent advice, consulting and training to mining and exploration companies, their advisors and investors. We help mine developers to advance their projects, mining companies to improve their operations and their professionals, and investors to derisk their investments by the provision of quality advice, training and software in the field of Mineral Resources and Mineral/Ore Reserves. https://snowdenoptiro.com/ contact@snowdenoptiro.com https://snowdenoptiro.com/professionaldevelopment/

In this episode of Fresh Thinking by Snowden Optiro, Senior Consultant Laurie Hassall discusses geometallurgical sampling, from collection to data analysis and ore body understanding.. This podcast episode at a glance:  00:15 Introduction  00:20 Geometallurgical sample collection  02:35 The next stage of sample collection  03:40 Data analysis and interpretation  04:25 Understanding geomet campaigns Join our expert as he explores the topic of 'Geometallurgical Sampling' in the episode 96 of the Fresh Thinking podcast.  If you'd like to connect with Laurie, please reach out to them at contact@snowdenoptiro.com.  This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, and @Apple Podcasts. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development. https://snowdenoptiro.com/ contact@snowdenoptiro.com https://snowdenoptiro.com/professionaldevelopment/

In this episode of Fresh Thinking by Snowden Optiro, tune in as Executive Consultant Ian Glacken and Principal Consultant Jan Graham delve into the key concepts of recoverable resources, examining their purpose, estimation techniques, practical applications, and how they differ from recoverable reserves. This podcast episode at a glance:  00:05 Introduction 00:50 Recoverable resources and their purpose 02:05 Main recoverable resources methods 04:30 Applicability in open pit vs. underground scenarios 06:20 Explanation of the information effect  07:50 Distinction between recoverable reserves and resources Join our experts as they explore the topic of Recovery Resources versus Recoverable Reserves in the episode 95 of the Fresh Thinking podcast.  If you'd like to connect with Ian and Jan, please reach out to them at contact@snowdenoptiro.com.  This podcast episode is also available as an audio podcast on @Libsyn, @Spotify and @Apple Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development. https://snowdenoptiro.com/ contact@snowdenoptiro.com https://snowdenoptiro.com/professionaldevelopment/

In this episode, Danny Tolmer and Gordon Webb explore the complexities of planning and optimising large open pit mines, from defining their scope to tackling long-term challenges and strategic decision-making. This podcast episode at a glance:  00:05 Introduction to the topic 00:30 Definition of large open pit mines 01:20 Optimisation challenges for large pits 02:30 Selecting pit shells with NPV insensitivity 03:40 Common discount rates for large mines 04:20 Impacts of discount rate choices 05:20 Complexities in large pit operations Join our experts as they explore the topic of The Importance of Pit Phasing in Open Pit Mine Planning in the episode 94 of the Fresh Thinking podcast.  If you'd like to connect with Danny or Gordon, please reach out to them at contact@snowdenoptiro.com.  This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, and @Apple Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development. https://snowdenoptiro.com/ https://snowdenoptiro.com/professionaldevelopment/ contact@snowdenoptiro.com

In this special episode, recorded at the Datamine Strategic Mine Planning Symposium 2024, we're doing something a little different to enhance your listening experience. Instead of our usual two-speaker format, we've brought together a panel of four industry experts to share their collective knowledge, insights, and real-world experiences on one of the most transformative trends in mining: Mine Electrification. The panel host is Tarrant Elkington – Snowden Optiro General Manager and the speakers are, Sarah de Vries – Snowden Optiro Principal Consultant, Phil Morriss – Snowden Optiro Executive Consultant, and Gavin Mann – Principal Mining Technology South 32. As the mining industry faces growing pressure to decarbonize, electrification technologies—such as in-pit crushing and conveying (IPCC), trolley assist systems, and battery electric vehicles (BEVs)—are emerging as key solutions to reduce emissions, improve operational efficiency, and enhance safety. Our expert panel dives deep into the opportunities, challenges, and innovations surrounding mine electrification, drawing on case studies and trials from around the globe. By featuring multiple perspectives, we aim to provide you with a richer, more comprehensive understanding of this critical topic. Whether you're looking to stay ahead of industry trends or explore practical strategies for decarbonization, this episode promises to deliver valuable insights and actionable takeaways. So, sit back, listen in, and let's hear what our panelists have to say about the future of mining! If you'd like to connect with Tarrant, Sarah and Phil, please reach out to them at contact@snowdenoptiro.com.  This video podcast is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development. https://snowdenoptiro.com https://snowdenoptiro.com/professional-development contact@snowdenoptiro.com

In this episode, Susan Havlin, our Managing Consultant Geology and Gregory Zhang, our Senior Geology Consultant explore the impact of trends in resource data, methods to identify and address them, and advanced techniques like principal component analysis and universal kriging to improve estimation accuracy. This podcast episode at a glance:  00:10 Introduction 00:55 Why trends in data matter 01:42 Common methods to identify trends 03:45 Problems caused by trends in estimation 04:30 Mitigating trends with search parameters 05:25 Principal component analysis and universal kriging 07:55 Applying these methods 09:00 Universal kriging explained 10:45 Using these methods vs domaining 11:55 Limitations of these methods Join our experts as they explore the topic of Detrending in the episode 92 of the Fresh Thinking podcast.  If you'd like to connect with Susan and Gregory, please reach out to them at contact@snowdenoptiro.com.  This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, and @Apple Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.   https://snowdenoptiro.com https://snowdenoptiro.com/professional-development/ contact@snowdenoptiro.com

In this episode of Fresh Thinking by Snowden Optiro, Executive Consultant Ian Glacken and Senior Consultant Dr. Gregory Zhang discuss declustering techniques, their practical applications, and how to address challenges in resource validation. This podcast episode at a glance:  00:05 Introduction 00:30 The reason to decluster data 01:30 Explanation of how cell declustering works 02:05 Key uncertainties and parameters in cell declustering 03:51 Defining volume in polygonal declustering 06:30 Issues with using nearest-neighbour estimates for declustering 08:10 Solutions for addressing problems with nearest-neighbour models 08:50 Limitations of declustering algorithms and ways to address them 10:45 Summation of the kriging weights technique  Join our experts as they explore the topic of 'Declustering Techniques' in the episode 91 of the Fresh Thinking podcast. If you'd like to connect with Ian and Greg, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our experts Tarrant Elkington, General Manager, and Sarah de Vries, Principal Consultant, discuss trolley assist technology and its applications in mining. This podcast episode at a glance: 00:05 Introduction 00:45 What is trolley assist? 01:45 Experience with trolley assist 02:40 Worldwide use of trolley assist 03:00 Challenges and hurdles for implementation 04:20 Suitability for different mine configurations 05:50 Diesel versus power cost considerations 08:10 Integration with battery technology 09:40 Underground applications 11:00 Challenges unique to underground use Join our experts as they explore the topic of Trolley Assist in the episode 90 of the Fresh Thinking podcast. If you'd like to connect with Tarrant and Sarah, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, and @Apple Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, Executive Consultant Ian Glacken and Principal Consultant Frank Blanchfield delve into effective management of mining studies. They explore the purpose of mining studies, essential success factors, the timing of supporting studies, and practical tips for navigating the entire process. This podcast episode at a glance: 00:05 Introduction 00:50 Purpose of doing mining studies 02:10 Key aspects of a successful mining study 04:55 Logistics and timing of supporting studies 09:00 Types of mining studies beyond scoping, pre-feasibility, and feasibility 10:00 Advice for managing mining studies effectively 12:00 Final thoughts Join our experts as they explore the topic of 'Managing mining studies' in the episode 89 of the Fresh Thinking podcast. If you'd like to connect with Ian and Frank, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our experts Tarrant Elkington, General Manager, and Sarah de Vries, Principal Consultant, discuss the latest advancements in underground mine electrification, including emerging technologies, ventilation and health benefits, economic considerations, and the challenges of transitioning to battery-electric equipment in mining operations. This podcast episode at a glance: 00:05 Introduction 00:50 What is mine electrification? 01:45 What are some of the newer technologies for mine electrification? 03:15 Is it possible to remove almost all diesel from an underground mine? 04:15What are the ventilation benefits of electrifying underground mines? 06:45 Is it economically viable to electrify underground mines? 07:50 What are some of the challenges to making mine electrification work? Join our experts as they explore the topic of Underground Mine Electrification in the episode 88 of the Fresh Thinking podcast. If you'd like to connect with Tarrant and Sarah, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, and @Apple Podcasts. hese podcasts are for those working in the mining industry.  Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, Julian Aldridge, Managing Consultant - EMEAA, and Laurie Hassall, Senior Consultant, discuss the critical factors and strategies for managing mining operations near cut-off grades, focusing on efficiency and optimisation. This podcast episode at a glance: 00:05 Introduction 00:50 Challenges Near the Cut-Off Grade 02:50 Managing Dilution 04:20 Role of Grade Control 06:00 Cost Implications of Mining Near Cut-Off Grades 07:12 Innovative Solutions Join our experts as they explore the topic of Cut-off Grades in the episode 87 of the Fresh Thinking podcast. If you'd like to connect with Julian or Laurie, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, and @Apple Podcasts. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, Danny Tolmer, Regional Manager - North America, and Gordon Webb, Senior Consultant - Mining, explore the critical aspects of open pit mine planning, focusing on pit phasing strategies, optimisation techniques, and the challenges involved in designing efficient, cost-effective phases. This podcast episode at a glance:  00:05 Introduction to Open Pit Mine Planning and Pit Phasing 01:30 Overview of Open Pit Mine Planning Process 04:10 Explanation of Phases and Their Importance 05:30 Criteria for Choosing Phases 06:50 Sizing Each Phase 09:00 Challenges in Phase Design 10:30 Typical Number of Phases in a Pit 12:00 Indicators for Adding More Phases 14:15 How Software Has Improved Pit Phasing Join our experts as they explore the topic of The Importance of Pit Phasing in Open Pit Mine Planning in the episode 86 of the Fresh Thinking podcast. If you'd like to connect with Danny or Gordon, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, and @Apple Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, Julian Aldridge, Managing Consultant - EMEAA and Laurie Hassall - Senior Consultant, explore how cut-off grades determine mining profitability by separating ore from waste based on costs and market factors. This podcast episode at a glance:  000:05 Introduction 00:15 Definition of cut-off grade 01:00 Impact of extraction costs on cut-off grade 02:30 Other variables affecting cut-off grade 03:20 Inclusion of capex in cut-off grade 03:50 Types of cut-off grades 04:36 Calculating cut-off grade for polymetallic ores 06:40 Role of recovery rates in dynamic cut-off grade Join our experts as they explore the topic of Cut-off Grades in the episode 85 of the Fresh Thinking podcast.  If you'd like to connect with Julian or Laurie, please reach out to them at contact@snowdenoptiro.com.  This video episode is also available as an audio podcast on @Libsyn, @Spotify, and @Apple Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, join Senior Consultant Laurie Hassall as he delves into the intricacies of geometallurgical data and modeling. This podcast episode at a glance:  00:05 Introduction 00:15 Geometallurgical data usage 01:25 Modelling geological variability 02:35 Estimating processing metrics in block models 04:16 Assessing reliability in predictions Join our expert as he explores the topic of 'Geometallurgical Modelling' in the episode 84 of the Fresh Thinking podcast.  If you'd like to connect with Laurie, please reach out to them at contact@snowdenoptiro.com. This podcast episode also available as an audio podcast on @Libsyn, @Spotify and @Apple Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our experts Tarrant Elkington, General Manager and Susan Havlin, Managing Consultant - Geology, take a deeper dive into mineral resource reviews, focusing on all the important processes and considerations that enhance the accuracy and reliability of mineral resource models. This is Part 2 of a two-part series. This podcast episode at a glance:  00:05 Introduction 01:30 Mineral Resource Review of Data  02:45 Reviewing QAQC practices 03:45 Issues found in geological interpretation 04:15 Reasons for not considering geology 05:40 Key aspects of geostatistics 06:30 Focus areas in resource estimation process 07:45 Appropriate estimation methodologies 08:20 Considerations for density estimation in resource reviews 09:10 Steps involved in estimate validation 10:30 Common issues with classification 12:00 Reporting block models to the market 13:20 Findings related to RPEEE (reasonable prospects of eventual economic extraction) 14:30 Most important areas to focus on in a resource review Join our experts as they explore the topic of Key Insights into the Mineral Resource Review Processes - Part 2 in the episode 83 of the Fresh Thinking podcast. If you'd like to connect with Tarrant and Susan, please reach out to them at contact@snowdenoptiro.com.  This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our experts provide an overview of mineral resource reviews, discussing key processes and considerations for reviewing and improving the accuracy and reliability of mineral resource models. This is Part 1 of a two-part series, with Part 2 diving deeper into each process in detail. This podcast episode at a glance: 00:05 Introduction 00:55 Experience in reviewing resources 01:15 Key aspects of resource reviews 02:05 Purpose of resource reviews 03:20  Process involved in resource reviews 04:10 Key elements to look for in a resource review 05:15 Typical outcomes of a resource review Join our experts as they explore the topic of 'Review of Mineral Resources - Overview' in the episode 82 of the Fresh Thinking podcast. If you'd like to connect with Tarrant and Susan, please reach out to them at contact@snowdenoptiro.com. This video episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, join Senior Consultant Laurie Hassall as he explores the historym origins and importance of geometallurgy in optimising metal extraction and reducing risk. This podcast episode at a glance: 00:05 Introduction 00:21 Definition of Geometallurgy 01:50 History of Geometallurgy 03:10 Why Geometallurgy is popular now 05:20 Geological variability consequences 05:45 Importance of Geometallurgy Join our experts as they explore the topic of 'The History and Origins of Geometallurgy' in the episode 81 of the Fresh Thinking podcast. If you'd like to connect with Laurie, please reach out to them at contact@snowdenoptiro.com.  This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, join our General Manager Tarrant Elkington and Senior Geology Consultant Dr. Gregory Zhang as they discuss how resource estimation methods impact mine planning and what mining engineers should know about understanding estimation models and their limitations. This podcast episode at a glance:  00:05 Introduction  00:45 Motivation for discussing resource geology and mine planning  03:00 Common issues with resource models for mine planners  03:45 Limitations of resource models 06:45 Overview of resource estimation methods 07:30 The rule for waste inclusion in resource model  10:00 The use of recoverable resource models in resource geology and mine planning 11:20 Common issues in model preparation 14:50 Change of Support concept. 17:50 Localisation process and best practices for handovers between geologists and mine planners Join our experts as they explore the topic of 'What Mining Engineers Need to Know About Resource Estimation' in the episode 80 of the Fresh Thinking podcast.  If you'd like to connect with Tarrant and Greg, please reach out to them at contact@snowdenoptiro.com.  This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, join our General Manager Tarrant Elkington and Managing Consultant Susan Havlin as they delve into the crucial crossover between resource geologists and mine planning engineers, highlighting key considerations for resource geologists when delivering models to mine planners. This podcast episode at a glance:  00:05 Introduction  00:45 Motivation for discussing resource geology and mine planning  01:45 Common issues with resource models for mine planners  03:17 What it means when resource models don't consider mining engineers  03:55 Key elements that should be included in a resource model  05:30 Managing and reducing model size effectively  07:30 The rule for waste inclusion in resource model  09:00 The use of rotated models in resource geology and mine planning 10:15 Common issues in model preparation (bugbears)  11:30 Best practices for handovers between geologists and mine planners Join our experts as they explore the topic of Key Insights for Resource Geologists When Delivering Models to Mine Planners in the episode 79 of the Fresh Thinking podcast.  If you'd like to connect with Tarrant and Susan, please reach out to them at contact@snowdenoptiro.com.  This video episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, tune in as our Executive Consultant Ian Glacken, Executive Consultant Andrew Scogings and Managing Consultant Susan Havlin discuss the complexities of hard rock lithium, covering key mineral variations, exploration indicators, and challenges in resource estimation and geological modeling. This podcast episode at a glance: 00:05 Introduction 01:30 Lithium minerals: Variations and significance? 02:10 Mineral characteristics: Impact on lithium extraction? 02:56 Economic viability: Role of mineralogy in lithium deposits? 03:40 Exploration indicators: Key signs for lithium? 05:00 Mineralogical studies: Contribution to resource estimates? 06:30 Assaying techniques: Effects on lithium oxide results? 07:50 Domaining challenges: Issues in pegmatite modeling? 08:30 Contaminants: Concerns in lithium estimation? 08:55 Subdomains in pegmatites: Varying lithium content? 09:54 Drilling impacts: Influence on lithium exploration? 10:30 Geological modeling: Challenges in lithium deposits? Join our experts as they explore the topic of Hard Rock Lithium in the episode 78 of the Fresh Thinking podcast. If you'd like to connect with Ian, Andrew and Susan, please reach out to them at contact@snowdenoptiro.com. This video episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our Executive Consultants Ian Glacken and Michael Andrew discuss the proposed JORC Code changes to the competent person's regulation. This podcast episode at a glance: 00:05 Introduction 02:11 Overview of changes 05:35 Pros and cons of the CV scheme 07:05 Validation of the CV of record and responsibility 09:10 Commodity experience for CP 10:40 Need for declaring sampling, QC, and analytical techniques in CV 11:30 Updates to CVs for each sign-off 13:10 Alternatives to resumes 15:00 Regulation and Requirements for CPD (Continues Professional Development) 17:33 Prevention of mining disasters and regulatory responses Join our experts as they explore the topic "Draft JORC Code Update: Competent Person Changes" in the episode 77 of the Fresh Thinking podcast. If you'd like to connect with Ian and Mike, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  Please look for Fresh Thinking by Snowden Optiro. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, Vincent Agnello, Principal Consultant, and Shepherd Kadzviti, Head of Advisory - EMEA, discuss key aspects of mineral resource and reserve reporting for JSE-listed companies, including compliance with section 12.13, annual reporting requirements, and ensuring adherence to JSE regulations. This podcast episode at a glance: 00:10 Introduction 01:30 Overview of public reporting for JSE-listed companies 02:00 Discussion about section 12.13 02:27 Compliance requirements 03:00 Additional compliance obligations 03:30 Key aspects of annual reporting 04:40 Required brief summaries in the report 05:45 Further details required in the report 07:10 Supporting documents for the report 07:40 Post-submission process 08:00 JSE compliance verification 08:30 Feedback from JSE 09:00 Ensuring compliance Join our experts as they explore the topic "Mineral resource & reserve reporting for JSE companies" in the episode 76 of the Fresh Thinking podcast. If you'd like to connect with Vincent or Shepherd, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts. Please look for Fresh Thinking by Snowden Optiro. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our Executive Consultant Ian Glacken and head of Advisory APAC Justine Tracey discuss what mine geologists do on a daily basis, their role in ensuring efficient mining, and provide tips for new mine geologists. This podcast episode at a glance: 00:55 Definition of a Mining Model 01:15 Process of Creating a Mining Model 03:20 Importance of a Mining Model  04:45 Modifications in a Mining Model – dilution and ore loss  06:15 Ways to incorporate dilution and ore loss into a mining model 09:30 Choosing the Right Application Method 12:30 Added Fields and Properties 16:30 Model Efficiency Adjustments  Join our experts as they explore the topic "The true role of a mine geologist" in the episode 75 of the Fresh Thinking podcast.  If you'd like to connect with Ian and Justine, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts. Please look for Fresh Thinking by Snowden Optiro.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our Executive Consultant Ian Glacken and Head of Advisory APAC Justine Tracey discuss the importance of data quality in mineral resource estimation and how to manage and understand your data. This podcast video at a glance: 00:30 - Topic introduction  01:30 - Overview of podcast purpose 01:45 - Implications of using bad data for mineral resource estimate 02:10 - Definition of bad data 04:20 - Is bad data worse that no data 05:30 - Transition from good data to bad data 07:00 - Requirements for a maiden mineral resource estimate 08:05 - Other aspects of data quality 09:10 - Understanding your data and explanation of metadata 10:45 - Role of the JORC Code in ensuring good data Join our experts as they explore the topic "Mining the truth" in the episode 74 of the Fresh Thinking podcast. If you'd like to connect with Ian and Justine, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts. Please look for Fresh Thinking by Snowden Optiro.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our Executive Consultant Ian Glacken and Reconcilor Product Owner and Principal Consultant Rayleen Hargreaves discuss the Draft JORC Code with a focus on Reconciliation. This podcast episode at a glance: 00:05 Introduction and overview of Draft JORC Code 01:40 Stakeholders involved in the 2025 JORC Code 03:30 Definition of Reconciliation in the Draft JORC Code 04:30 Clarifications needed with Reconciliation terminology 05:45 Public consultation process and feedback 08:50 Historical vs. Production Reconciliation 15:30 Impact on Public Reporting Practices 16:40 Need for standardisation in Reconciliation Reporting 18:00 Importance of transparent terminology in Reporting 20:00 Potential for Global Reconciliation Standard  21:00 Addressing any ambiguities in the Draft JORC Code 24:00 Final thoughts and call for feedback Join our experts as they explore the topic "Reconciliation Insights: Navigating the Draft JORC Code" in the episode 73 of the Fresh Thinking podcast. If you'd like to connect with Ian and Rayleen, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  Please look for Fresh Thinking by Snowden Optiro. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our General Manager of Snowden Optiro, Tarrant Elkington and Managing Consultant, Hamish Guthrie discuss the process of preparing open pit mining models and the challenges involved. This podcast episode at a glance: 00:55 Definition of a Mining Model 01:15 Process of Creating a Mining Model 03:20 Importance of a Mining Model 04:45 Modifications in a Mining Model – dilution and ore loss 06:15 Ways to incorporate dilution and ore loss into a mining model 09:30 Choosing the Right Application Method 12:30 Added Fields and Properties 16:30 Model Efficiency Adjustments  Join our experts as they explore the topic of Open pit mine planning model preparation in the episode 73 of the Fresh Thinking podcast. If you'd like to connect with Tarrant and Hamish, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  Please look for Fresh Thinking by Snowden Optiro. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, tune in as our Executive Consultant Ian Glacken, Executive Consultant and Principal Consultant Jan Graham explore the topic of Commodity Series: Nickel Sulfide. This podcast episode at a glance: 00:05 Introduction 00:40 Experience with nickel sulfide deposits 01:30 Key types of nickel sulfide deposits 02:15 Estimation issues for structurally hosted deposits 04:40 Use of 2D modeling or seam modeling 07:20 Involvement with Nova Bollinger deposit 08:25 Estimation issues for disseminated mineralization 11:00 Geological models in nickel sulfide mines Join our experts as they explore the topic of Nickel Sulfide Lithium in the episode 71 of the Fresh Thinking podcast. If you'd like to connect with Ian and Jan, please reach out to them at contact@snowdenoptiro.com. This podcast is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts. These podcasts are for those working in the mining industry.  Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, tune in as our Executive Consultant Ian Glacken, Executive Consultant Andrew Scogings and Managing Consultant Susan Havlin explore the topic of Commodity Series: Hard Rock Lithium. This podcast at a glance:   00:05 Introduction 01:30 Lithium minerals: Variations and significance? 02:10 Mineral characteristics: Impact on lithium extraction? 02:56 Economic viability: Role of mineralogy in lithium deposits? 03:40 Exploration indicators: Key signs for lithium? 05:00 Mineralogical studies: Contribution to resource estimates? 06:30 Assaying techniques: Effects on lithium oxide results? 07:50 Domaining challenges: Issues in pegmatite modeling? 08:30 Contaminants: Concerns in lithium estimation? 08:55 Subdomains in pegmatites: Varying lithium content? 09:54 Drilling impacts: Influence on lithium exploration? 10:30 Geological modeling: Challenges in lithium deposits? Join our experts as they explore the topic of Hard Rock Lithium in the episode 71 of the Fresh Thinking podcast. If you'd like to connect with Ian, Andrew and Susan, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, tune in as our Executive Consultant Ian Glacken and Johannesburg-based Principal Consultant Senzeni Mandava explore the topic of compliance, specifically the similarities and differences between Australian JORC Code and South African SAMREC Code. This podcast episode at a glance:  00:05 Introduction 00:40 Brief comparison of SAMREC vs JORC and when they were updated 01:40 Explanation of a CPR 02:30 Mandatory items to be included in a CPR 03:50 Description of a Readers Panel 05:30 Overview of regulations in Australia 07:20 Comparison of Table 1 in SAMREC vs JORC 09:15 Differences in Table 1 Summary Join our experts as they explore the topic of Compliance in the episode 70 of the Fresh Thinking podcast. If you'd like to connect with Ian and Senzeni, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, tune in as our Executive Consultant Ian Glacken and Johannesburg-based Principal Consultant Senzeni Mandava share insights on industry trends in her local context, discuss ongoing projects, and explore African resource dynamics. This podcast episode at a glance:  00:05 Introduction  01:00 Overview of Johannesburg office and key roles 02:20 Focus on Johannesburg Practice and daily operations 03:50 Initiatives for Professional Development 05:13 Insight into the Steelmaker's Project and its unique aspects 09:30 Challenges encountered during site visits 11:30 Trends in Mineral Resources across Africa 14:10 Outlook on the South African Mining Industry for 2024 16:30 Environmental, Social, and Governance (ESG) impacts on mines in Africa Join our experts as they explore the topic of Exploring African Mining in the episode 69 of the Fresh Thinking podcast. If you'd like to connect with Ian and Senzeni, please reach out to them at contact@snowdenoptiro.com. This podcast is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, tune is as our Executive Consultant Ian Glacken and Justine Tracey, Head of Advisory APAC discuss mineral resource estimation issues and intricates of gold deposits. This podcast at a glance: 00:05 Introduction 01:10 Ian's Background and Experience with Gold 02:20 Justine's Experience with Gold Deposits 02:50 Key Issues in Estimating Gold Deposits 06:20 Estimating Disseminated Mineralisation in Intrusives 09:00 Challenges with Dual Commodity Mineralisation 10:25 Other Styles of Gold Mineralisation 12:00 Conclusion Join our experts as they explore the topic of Gold Deposits in the episode 68 of the Fresh Thinking podcast. If you'd like to connect with Ian and Justine, please reach out to them at contact@snowdenoptiro.com. This podcast episode is also available as an audio podcast on @Spotify, @Apple Podcasts, @Google Podcasts. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, tune is as our Executive Consultants Ian Glacken and Craig Morley discuss the importance of value-based ore control, the evolving role of mining geologists, and the impact of AI and simulation in enhancing mining operations. This podcast at a glance: 00:05 Introduction 00:55 Value-Based Ore Control 02:32 Geometallurgy and Its Importance 03:25 The Role of 21st-Century Mining Geologists 05:45 Simulation and Uncertainty in Mining 08:20 Future of Mining Geology and AI 10:30 Future Role of Resource Geologists and AI Join our experts as they explore the topic of Mining geology and Ore Control in the episode 67 of the Fresh Thinking podcast. If you'd like to connect with Ian and Craig, please reach out to them at contact@snowdenoptiro.com. This video podcast is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts. These podcasts are for those working in the mining industry.  Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, join us as our Principal Consultant Chris Jones and Allan Earl, Executive Consultant, exploring the topic of underground mine planning process. This podcast  at a glance: 00:05 Introduction  00:40 Recent Underground Projects 01:05 Underground Mine Planning and Design Process 01:50 Specifics for Scoping Studies 02:25 Mining Method Selection 03:40 Development Design Layout 04:30 Preliminary Stope Designs 05:10 Mining Schedule Setup 07:10 Schedule and Reporting 08:10 Conclusion and Future Topics Join our experts as they explore the topic of Underground Mine Planning Process in the episode 66 of the Fresh Thinking podcast. If you'd like to connect with Chris and Allan, please reach out to them at contact@snowdenoptiro.com. This podcast is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.