Fresh Thinking by Optiro
3 - Politics and Ideology of Resource Estimation (part 1)
Jan 23, 2019 · 13 min
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Mineral resource estimation produces a model of deposits for extraction and is made up of various complex processes. In part one of this two-part series, Optiro's Director of Geology Ian Glacken discusses the history and common practices of resource estimation.


In this episode:

0:42 What are the main estimation methods used in mineral estimation worldwide? 1:33 What is the origin of the term 'Kriging'? 2:40 There are multiple methods for resource estimation, but why don't we all use the same one? 4:57 Ordinary Kriging is probably the most popular technique. Why is that? 6:56 Some techniques of resource estimation are controversial, like inverse distance and polygonal methods. Why? 9:40 Now we have better technology than ever before. How does this affect the methods used for resource estimation? 10:51 What is geostatistics and how has it influenced resource estimation?

For more information:


Monograph 30 – Mineral Resource and Ore Reserve Estimation – The AusIMM Guide to Good Practice -


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