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Artwork for Fresh Thinking by Snowden Optiro

Fresh Thinking by Snowden Optiro

Snowden Optiro
Mining Industry
Geology
Mining
Mineral Resource Estimation
Geometallurgy
Resource Estimation
Underground Mining
Mining Operations
Geostatistics
Mining Engineering
Gold
Open Pit Mining
Recoverable Resources
Mineral Resources
Battery Electric Vehicles
JORC Code
Mine Planning
Conditional Simulation
Occupational Health and Safety
Snowden Optiro

News and information from the world of geology and mining, Fresh Thinking by Snowden Optiro provides a new perspective on the mining industry and seeks to educate on best practice. 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... more

PublishesDailyEpisodes169Founded8 years ago
Number of ListenersCategories
Natural SciencesEarth SciencesScience

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Artwork for Fresh Thinking by Snowden Optiro

Latest Episodes

If your resource model is statistically robust, why doesn't it always reconcile with production?

In this episode of Fresh Thinking by Snowden Optiro, Melanie Bulley and Senzeni Mandava Matondi explore why good resource estimates can still lead to d... more

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How do you model mineralisation when geological boundaries aren't clearly defined?

In this episode of Fresh Thinking by @SnowdenOptiro , Senior Consultant, Melanie Bulley is joined by Principal Consultant, Senzeni Matondi to explore how Categoric... more

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What do consultants see that mine sites often miss?

In this episode of Fresh Thinking bySnowden Optiro, Rayleen Hargreaves is joined by Ian Glacken to discuss the most common mine-to-mill reconciliation challenges, from stockpile management and sil... more

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Which commodities matter most in the global race for critical and strategic minerals?

In this episode of @SnowdenOptiro Fresh Thinking podcast, Senzeni Mandava Matondi is joined by Julian Aldridge and Laurie Hassall to explore the commodities tha... more

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Recent Guests

Senzeni Matondi
Principal Consultant at Snowden Optiro, based in Bristol
Snowden Optiro
Episode: EP 168 | When Geology Isn't Enough - Using Categorical Indicator Kriging to Model Diffuse Mineralisation
Julian Aldridge
Managing consultant in the Meir region
Snowden Optiro
Episode: EP 161 | Private vs Public Mining Companies: CRIRSCO Compliance Explained
Rayleen Hargreaves
Principal consultant with Datamine and Reconciler Project owner
Datamine
Episode: EP 167 | Behind the Paper: Enhancing Underground Mine Reconciliation
Bruce Kendall
Technical Advisor for Minerals 260
Minerals 260
Episode: EP 160 | Part 7 of 7: Case Study - Applying Localised Conditional Simulation at Bullabulling
Ezilma Dias
Principal Geotechnical Engineer with 18+ years of experience in Brazil and Australia
Snowden Optiro
Episode: EP 165 | Where Geology Meets Engineering: The Role of Geotechnical Core Logging
Ian Gladden
Executive Consultant Snowden Optiro
Snowden Optiro
Episode: EP 153: The Genesis of Australia's Nickel Industry
Allan Earl
Experienced competent/qualified person for mineral reserves
Independent mining consultant with 40+ years in the industry
Episode: Ep 152: If You Sign It, You Own It: The Reality of Reserve Sign-Off
Tarrant Elkington
Mining Engineer
Mining Engineer (planning teams)
Episode: Ep 151: When Bigger Isn't Better: Rethinking Resource Model Size
Gregory Zhang
Guest expert on geostatistics and Excel-based learning workflows
Snowden Optiro
Episode: Ep 149: Building Resource Estimation Logic in Excel

Hosts

Ian Glacken
Executive consultant involved in resource estimation and mining planning discussions.
Susan Havlin
Managing Consultant for Geology team; frequently discusses foundational resource estimation and uncertainty topics.
Greg Zhang
Senior consultant with extensive experience in resource estimation and geostatistics; appears across episodes.

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Talking Points

Recent interactions between the hosts and their guests.

EP 168 | When Geology Isn't Enough - Using Categorical Indicator Kriging to Model Diffuse Mineralisation
Q: How is the mining boundary ultimately determined?
The mining boundary is determined by selecting a probability threshold that best separates ore from waste, which is tested against the nearest neighbor benchmark to ensure fidelity to observed data without oversmoothing.
EP 168 | When Geology Isn't Enough - Using Categorical Indicator Kriging to Model Diffuse Mineralisation
Q: How does CIK work in simple terms?
CIK converts grades to binary indicators above a threshold, then models the spatial continuity of these indicators with virograms to estimate the probability surface of mineralization across blocks.
EP 168 | When Geology Isn't Enough - Using Categorical Indicator Kriging to Model Diffuse Mineralisation
Q: What happens when mineralization doesn't respect clear geological boundaries?
Mineralization can be diffuse, so instead of trying to define a hard boundary by geology alone, we model the probability of mineralized continuity using CIK, then use a probabilistic threshold to separate ore from waste, which provides a more objective domaining framework.
EP 165 | Where Geology Meets Engineering: The Role of Geotechnical Core Logging
Q: What advice would you give to geologists or early career engineers involved in core logging?
Take time to observe carefully, describe what you see clearly, understand defects and structural patterns, and strive for consistency to improve the reliability of the geotechnical model.
EP 165 | Where Geology Meets Engineering: The Role of Geotechnical Core Logging
Q: What are some of the common mistakes or challenges you see when logging occurs?
Mistakes include logging too quickly and missing key structural features, inconsistent archi-D measurements when broken cores are reassembled, incomplete structural descriptions, and lack of consistency between loggers that degrades data interpretation.

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Frequently Asked Questions About Fresh Thinking by Snowden Optiro

What is Fresh Thinking by Snowden Optiro about and what kind of topics does it cover?

The show centers on advanced mineral resource estimation, geostatistics, and mining planning, with a strong emphasis on uncertainty, localization, and practical workflows. Episodes frequently dissect techniques like Localised Conditional Simulation (LCS), conditional and uniform conditioning, and other modern methods for modeling grade distribution, readiness of resource models for mine planning, and risk-informed decision making. Hosts often contrast traditional estimation approaches with cutting-edge stochastic methods, sharing actionable insights for practitioners, engineers, and geologists who shape project economics and feasibility. A notable strength is the depth of technical detail delivered in accessible discussions, often featuring... more

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Fresh Thinking by Snowden Optiro launched 8 years ago and published 169 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on Fresh Thinking by Snowden Optiro?

Recent guests on Fresh Thinking by Snowden Optiro include:

1. Senzeni Matondi
2. Julian Aldridge
3. Rayleen Hargreaves
4. Bruce Kendall
5. Ezilma Dias
6. Ian Gladden
7. Allan Earl
8. Tarrant Elkington

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