Mineral Processing Technology

New scientific article published by BRGM!

As part of our ION4RAW project, the French’s Public Institution for Earth Science applications, the Geological Survey (Bureau de recherches géologiques et minières – BRGM) published an article proposing a new method to identify more accurately the accessible mineral resources: Predictive assessment of metallogenic signatures using the DataBase Querying (DBQ) method: A European application.

In the context of climate change and related international renewable-energy policy, the fast growth of emerging economies and the rapid development of new technologies have caused a drastic increase in the demand for several metals and other elements. Thus, a reliable supply of critical raw materials is one of the major European challenges in the deployment of low-carbon technologies and to secure several strategic sectors of European industries.

However, not all elements of economic interest today have been systematically assayed and/or studied in the past, and the existing European databases of are incomplete from a 2022 viewpoint. Among recently identified critical raw materials, several elements were, or are, not systematically identified and/or assessed in European databases, as their high economic importance and supply risk have only recently become apparent. Thus, a gap may exist between historical databases and current metal needs.

To adress this gap, BRMG developed a new approach in addition to a ‘classical’ application of the DataBase Querying (DBQ) geostatistical mineral prospectivity method. This new approach is based on the assessment of more global predictive metallogenic-signature aspects, by clustering studied elements known to occur in various metallogenic families, using ArcGIS software. Development of this method at a continental scale allowed identifying several areas of great interest in Europe for exploration of the targeted by-products.

Learn more in the article here