Ep 151: When Bigger Isn't Better: Rethinking Resource Model Size

In this episode of Fresh Thinking by Snowden Optiro, Jamie Oppelaar (Senior Consultant) and Tarrant Elkington (General Manager) discuss a growing challenge in mining: resource models are getting bigger and bigger.

More blocks, more attributes, more simulations. While this can improve geological representation, it can also slow down optimisation, scheduling and everyday planning decisions. So how do we strike the right balance between detail and usability?

Jamie and Tarrant explore why models are expanding, the practical consequences for engineers, and how geologists and planners can work together to build fit-for-purpose models that support better decisions without unnecessary complexity.

Key moments in this episode
00:00 Introduction: Why resource models keep getting larger
03:40 The three main drivers of model size
07:10 How large models slow optimisation and planning workflows
09:30 When higher resolution models are actually justified
14:20 Practical ways to reduce model size without losing value
20:00 Strategies engineers use to simplify models for optimisation
24:55 The key takeaway: the best model is not the biggest model

If you work with block models, resource estimation, or mine planning, this conversation highlights practical ways to improve workflow efficiency while maintaining the geological detail that matters.

If you would like to contact Tarrant and Jamie: contact(at)snowdenoptiro.com

🎧 Fresh Thinking by Snowden Optiro is rapidly becoming the best mining podcast globally, and is available as an audio podcast on all major podcast platforms, and in video format on Snowden Optiro's YouTube channel.

Snowden Optiro:
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.

Explore more: https://snowdenoptiro.com/