Geochemical characterisation of rock hydration processes using t-SNE

Tom Horrocks, Eun-Jung Holden, Daniel Wedge, Chris Wijns, Marco Fiorentini

Abstract: Highlights•Dimensionality reduction applied to Kevitsa's multi-element drill core assay database.•Produced representations separated hydrated core despite absence of loss on ignition.•Assay-based core re-logging visualised using representations.•Feature selection prior to dimensionality reduction improved produced representations.•Compositional nature of assays addressed using Aitchison distance.