Geochemical mapping based on multiple geochemical datasets: A general method, and its application to Wallonia (Southern Belgium)

Merging several already existing geochemical datasets can be highly profitable for obtaining geochemical maps with increased resolution and/or coverage area. However, this practice can lead to potential problems due to varying quality of the datasets and biases between datasets. In this paper, we present a general method which addresses these issues thereby making it possible to pool together multiple pre-existing datasets to produce one reliable dataset for geochemical mapping.