Geochemical data for protolith classification testing

Global major element geochemical data for igneous and sedimentary rocks. This dataset is used to train via machine learning a classifier for igneous and sedimentary protoliths. It contains the major element chemistry, ilr transformed chemistry, rock type, protolith class, and reference to the original data. Codes to train a protolith classifier and analyze the results are found in the GitHub repository github.com/dhasterok/global_geochemistry/