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…
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…
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?
Fresh Thinking from the World of Mining is a free podcast series from Optiro. In Part 1 of this two-part Politics and Ideology of Resource Estimation series, Optiro's Director of Geology Ian Glacken discusses the history and common practices of resource estimation.
This week’s 30 Seconds of Reconciliation Info is from Ian Glacken our Director of Geology. Underground face or channel samples – a boon or a chore for reconciliation? Collected and used correctly, channel samples (a groove cut into the development…
Welcome to the second podcast in our Fresh Thinking from the World of Mining podcast series.
This week Ian Glacken, our Director of Geology, talks about Reasonable Prospects of Eventual Economic Extraction (RPEEE) with Adam Mullett, and why the principle is critical to reporting resources.
The podcast at a glance:
0:48 What is RPEEE?
1:33 Why do we need to have RPEEE as part of all the reporting codes?
2:28 The codes are there to protect investors - reporting the right information to investors is critical
3:19 What has changed from the versions of JORC 2004 to 2012?
4:28 RPEEE has also been controversial because of its inconsistent application
5:34 Why is the principal not being applied everywhere?
6:38 What is the approach for open pit mines for RPEEE?
7:45 How does RPEEE apply to underground mines?
8:56 Are there any differences between how the RPEEE has been applied in the JORC, SAMREC and CIM codes?
