Classification of Four Igneous Host-Rock Types Using Apatite Trace-Element Geochemistry: Source-Aware Evaluation of Deep Learning and Geochemical Representations
Apatite rare-earth-element (REE) compositions can discriminate igneous host-rock types, but systematic comparisons of deep-learning models and alternative REE representations remain limited, while analyses from shared publications or geological bodies complicate estimates of generalization. We evaluated four-class classification in a cohort…