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Tag Ian Glacken

This week’s 30 Seconds of Info is about Reconciliation and heap leach mining

This week's 30 Seconds of Info is from Ian Glacken our Director of Geology. Reconciliation and heap leach mining: For all of its apparent simplicity as an extraction method, heap leaches (progressive extraction of metal from dumped – and perhaps crushed – material through chemical dissolution of valuable components) can cause real problems for reconciliation.
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Videos: 30 Seconds of Info. Chinese with English subtitles

Our 30 Seconds of Info videos are presented in Chinese, with English subtitles, by our Consultant Gregory Zhang. The videos are full of useful tips and technical tricks compiled by Ian Glacken our Geology Director and Paul Blackney our Principal Consultant. These videos cover Sampling, QAQC, Resource Estimation and Reconciliation.
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PODCASTS: 12 Fresh Thinking by Optiro podcasts

Technical Podcasts for the Mining Industry. Our technical podcast series titled Fresh Thinking by Optiro are available for free on iTunes, Stitcher, Spotify, Google Podcasts and on the Optiro website. Our aim is to offer interesting technical talks and key information with a fresh take on the world of geology and mining. We will be uploading new podcasts on a regular basis.
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Where to find our Fresh Thinking podcasts – for those in the mining industry

You can find our Fresh Thinking technical podcasts on the following platforms: Google Podcasts Spotify Stitcher iTunes Happy listening! About our podcast presenters: Ian Glacken BSc (Hons) (Geology), MSc(Mining Geology), DIC, MSc(Geostatistics), Grad Dip Computing, FAusIMM(CP), FAIG, MIMMM, CEng Ian is…

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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?
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