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Publication in Australian Journal of Earth Sciences

Dimap and G.E.O.S. developed a new method for evaluating drill cores

The new CoreSmart workflow enables quantitative determination of valuable metals in drill cores – Results have been published in the Australian Journal of Earth Sciences
With the latest publication in the international Geoscience Journal of the Geological Society of Australia the partnering companies Dimap Spectral GmbH and G.E.O.S. Engineering report on the latest results of the AI-based drill core interpretation.
The application of artificial intelligence on data of hyperspectral core scans allows for the more accurate and reliable prediction of the geochemical properties such as gold, copper and iron.
The article “Performance measurements of machine learning and different neural network designs for prediction of geochemical properties based on hyperspectral core scans” demonstrates the performance of the newly developed method, which is now also commercially available known as CoreSmart workflow.

It was impressively demonstrated that the AI-based CoreSmart workflow developed by G.E.O.S. and Dimap can be used to quantitatively determine valuable metals in drill cores. An accuracy of the predictions of more than 80% is achieved. This goes well beyond the results of previous AI-based approaches. The very good performance is achieved on the one hand by the network structure used and on the other hand by the extremely extensive training data of more than 700 kilometers of drill cores plus including more than 110,000 chemical analyses.

Thus, this method can be used to minimize the cost of chemical analysis in exploration and re-evaluation of existing drill cores.

In the investigations, the CoreSmart workflow had been tested for the elements gold, copper, iron, tin, tungsten, silver, nickel and uranium with prediction accuracies of more than 80%.