EP 169 | Why Good Estimates Can Still Produce Poor Reconciliation

EP 169 | Why Good Estimates Can Still Produce Poor Reconciliation

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 disappointing reconciliation results.

They discuss the impact of grade smoothing, explain the concept of conditional bias, and explore why reproducing the average grade is only part of the story. The conversation also covers practical techniques used by resource geologists to assess estimation performance and improve local predictions that support better mining decisions.

Whether you're working in resource estimation, grade control or mine reconciliation, this episode offers practical insights into bridging the gap between statistical accuracy and operational performance.

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Jaksot(177)

EP 178 | Inferred Resources in Mine Planning: Practice vs Reporting

EP 178 | Inferred Resources in Mine Planning: Practice vs Reporting

Inferred Mineral Resources are the lowest-confidence Mineral Resource category, but what role should they play in mine planning? In this episode of Fresh Thinking, Tarrant Elkington is joined by Allan...

7 Loka 19min

EP 177 | Rethinking Grade Control: When Ordinary Kriging Isn't Enough

EP 177 | Rethinking Grade Control: When Ordinary Kriging Isn't Enough

When does ordinary kriging stop being the best approach for grade control? In this episode of Fresh Thinking, Ian Glacken, Executive Consultant, and Dr Gregory Zhang, Senior Consultant at  @SnowdenOpt...

1 Loka 18min

EP 176 | Evolving Air Quality Regulations: A Catalyst for Electric Machine Adoption

EP 176 | Evolving Air Quality Regulations: A Catalyst for Electric Machine Adoption

Changing workplace exposure limits could become an important driver of battery electric vehicle adoption in underground mining. In this episode of Fresh Thinking by ‪@SnowdenOptiro‬, Hamish Guthrie is...

23 Syys 8min

EP 174 | Platinum: Is It Worth Its Weight in Gold?

EP 174 | Platinum: Is It Worth Its Weight in Gold?

Platinum is one of the world's rarest and most geographically concentrated metals, with applications spanning the automotive, industrial, jewellery and emerging hydrogen sectors. But what does its evo...

10 Syys 11min

EP 173 | The Theory of Sampling: Why Every Mining Decision Begins with a Representative Sample

EP 173 | The Theory of Sampling: Why Every Mining Decision Begins with a Representative Sample

Was the sample representative? Every geological model, resource estimate, grade control decision and reconciliation result ultimately depends on the quality of the samples behind it. In this episode o...

2 Syys 8min

EP 172 | Tailings Are Not Just Relocated Ore: The Nuances of Tailings Mineral Resource Estimates

EP 172 | Tailings Are Not Just Relocated Ore: The Nuances of Tailings Mineral Resource Estimates

Tailings Mineral Resource Estimates can appear straightforward. The material has already been mined, crushed, processed and deposited in one location — but tailings facilities present their own unique...

26 Elo 13min

EP 171 | Part 2 of 2: Managing Uncertainty - How Better Grade Control Leads to Better Decisions

EP 171 | Part 2 of 2: Managing Uncertainty - How Better Grade Control Leads to Better Decisions

In Part 2 of our Fresh Thinking by @SnowdenOptiro  two-part series, host Melanie Bully is joined by Senzeni Matondi to continue the discussion on why the most expensive mistake in grade control isn't ...

19 Elo 6min

EP 175 | Why Resource & Reserve Reconciliation Matters

EP 175 | Why Resource & Reserve Reconciliation Matters

In this episode of Fresh Thinking by Snowden Optiro, Rayleen Hargreaves, Principal Consultant at Datamine and Product Owner of Reconcilor, talks with Ian Glacken, Executive Consultant at Snowden Optir...

17 Elo 21min

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