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 face) or face samples (chips cut in a line across the face) can be your best friend for reconciliation (and in grade control modelling), as they are frequent samples throughout the ore zone. But they can also be a nightmare – especially if the quality of the samples isn’t good (non-selective, non-probabilistic, biased towards the ore or waste). The most important guideline is to remove those face or channel samples which don’t traverse the entire ore zone, as these are guaranteed to mess up your reconciliation.
Some background info on Ian:
Ian Glacken – Director of Geology
BSc (Hons) (Geology), MSc(Mining Geology), DIC, MSc(Geostatistics), Grad Dip Computing, FAusIMM(CP), FAIG, MIMMM, CEng
Ian is a geologist with postgraduate qualifications in geostatistics, mining geology and computing who has more than 35 years’ worldwide experience in the mining industry.
Ian’s skills are in resource evaluation and due diligence reviews, public reporting, training and mentoring, quantitative risk assessment, strategic advice, geostatistics, reconciliation, project management, statutory and competent persons’ reporting and mining geology studies.
Ian has a strong mining production background and is a regular auditor for the world’s largest mining companies.