Supplementary data of Factors accounting for the variations in the organic matter maturation of the late Mesoproterozoic Taizi Formation

This supplementary dataset provides comprehensive geochemical and Raman spectroscopic data from the Taizi Formation of the late Mesoproterozoic Shennongjia Group. Table S1. Comprehensive geochemical data of the Taizi Formation, including bulk analyses of total organic carbon (TOC), total nitrogen (TN), carbon and nitrogen isotopic compositions (δ¹³Corg, δ¹⁵N), iron speciation, and trace element concentrations. Table S2. In-situ Raman spectral data for organic matter, comprising 733 individual spectra with associated Raman parameters (e.g., I-1350/I-1600, FWHM-D1).