Trace element evidence for diverse origins of superheavy pyrite in Neoproterozoic sedimentary strata

Data S1 includes all LA-ICP-MS analyses (3632) used for supervised machine learning model training and testing (including in-sample-locality and out-of-sample-locality testing). The data were also used for HCA and PCA analyses. Data S2 includes LA-ICP-MS trace element analyses of samples from Cui et al. and Xiao et al. projects.