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Tag Paul Blackney

Part 1 of the QAQC Podcast… accuracy and precision.

In this Part 1 of a 2 Part podcast series, Paul Blackney our Principal Consultant discusses the difference between accuracy and precision and illustrates what accuracy means in practice. This Fresh Thinking podcast episode at a glance: 0:54 What's the difference between accuracy and precision? 5:12 Why are the accuracy and precision of geological data so important? 7:09 How do we know we have an acceptable accuracy for sample grade data? 9:50 Not everything goes to plan. What can you do if your grade control accuracy doesn't meet your expectations? You can subscribe to the Fresh Thinking podcasts on Google Podcasts, iTunes, Stitcher, Spotify and the Optiro website.
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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?
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