Tag geology

30 Seconds of Info: Reconciliation of planned and unplanned dilution for underground stopes

This week’s 30 Seconds of Reconciliation Info is from Ian Glacken our Director of Geology. Reconciliation of planned and unplanned dilution for underground stopes:  Typically, underground stopes of relatively limited dimensions (i.e. not sublevel or block caving shapes) are designed…

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PODCAST: Declustering… what is the true grade?

In this week's Fresh Thinking by Optiro podcast, Ian Glacken our Director of Geology, and Paul Blackney our Principal Consultant Geology discuss declustering and where to use it. Declustering is a critical technique to understand and use when estimating a resource. It helps you get a more accurate picture of the whole ore body, but why is it controversial in parts of the industry? The podcast at a glance: 0:51 What is declustering and why is mining data clustered? 1:41 What are the implications of not declustering? 2:03 When is declustering useful? 2:52 Do we need to apply declustering to ordinary kriging? 3:26 What are some of the normal methods used when declustering? 5:12 So not everyone uses declustering. Why do some practitioners disavow it? 6:10 Do you both agree on when to apply declustering? 7:22 Are there any circumstances when its mandatory to decluster? 9:12 Where should people go to learn more?
Read MorePODCAST: Declustering… what is the true grade?