Publications

Despite progress being made by professional organisations towards the worldwide standardization of Mineral Resource Standards and Definitions, Micon continues to encounter poorly classified mineral resource estimates. Such classifications often resemble a ‘Spotted...

Geostatistics is more than just a black-box or button-pushing exercise. It is a process involving a suitable collection of data and geological information, a detailed analysis of this data, an understanding of suitable methods for estimation and their inherent assumptions, and a systematic and comprehensive validation of the output model. Tools such as software packages are not magic wands that mysteriously produce models that fit the characteristics of the natural phenomenon. A sensible geostatistical estimate takes time, understanding, experience and skill to produce.

In all instances of drilling, maximum recovery of a representative sample is the objective. The general notion is that the bigger the core size, the better/more representative the sample. As a result, samples collected from smaller drill core are often considered...

Genetic models are rarely mentioned in the estimation of mineral resources and yet they are key to getting things right. The ability to conceive/perceive and apply the correct genetic model early in the exploration stage is crucial not only to the discovery of the...

Can use be made of old or historic assay data in a current mineral resource estimate? The amount of data involved may be substantial and duplicating it could cost hundreds of thousands or even millions of dollars. Clients usually wants to use as much of it as possible. What can be done to complete best practices data verification and justify its use?