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Simon Houlding was Vice-President of Professional Development for InfoMine Inc. He founded Edumine in 2000, and was responsible for this InfoMine division which provides learning and training programs to the global mining industry until 31 October 2017. He is a professional engineer and author.

Your Resource Estimation May be Fundamentally Flawed Without a Good Geological Model

Resource estimation is a compilation of data collection and analysis, geological interpretation and geostatistical estimation. The process is expertly summarized in a recent article by Erik Ronald, Is your Mineral Resource or Reservoir Model Fundamentally Flawed? – The Importance of Domaining and Stationarity to Geologists. Stationarity of our data and the influence of geology on the distribution of grades are key underlying concepts of this process. The semi-variogram is the principle analytical tool for establishing whether or not our data posesses stationarity. Stationarity assumes the

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