Fig. 2: Raman spectroscopic characteristics of all analyzed samples.
From: Two-stage oxidation of petrogenic organic carbon in a rapidly exhuming small mountainous catchment
a D1 vs. G band positions (the center wavenumbers for specific Raman peaks). b D1 vs. G band FWHMs (full widths at half maximum). FWHM represents an alternative parameter to evaluate the maturity of graphitic carbon (decreases with increasing maturity). Detailed descriptions for acquiring Raman peaks and raw deconvoluted data can be found in Method and Supplementary Data, respectively. Symbol colors: black for rock, green for weathered material, yellow for bedload, orange for suspended load, and blue for marine sediment.
