Fig. 5: Bulk organic carbon isotope records and lithology-specific δ13Corg distributions in the Huainan section.
From: Carbon isotope perturbations are not primarily driven by volcanism during the Late Paleozoic Ice Age
a Trends of δ13Corg from limestone samples and mudstone and siltstone samples in the Huainan section; b, c Organic carbon isotopic composition histograms for mudstone and siltstone samples and limestone samples. Locally estimated scatterplot smoothing (LOESS) trendlines using Acycle software65 (0.1 smoothing, solid lines) with 1σ bootstrapped errors (dashed lines).
