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Simon Houlding is Vice-President of Professional Development for InfoMine Inc., responsible for EduMine, the professional development division which provides learning and training programs to the global mining industry. He is a practicing 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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