Additional file 3: of Enhanced flux of extraterrestrial 3He across the Permian–Triassic boundary

Figure S3. Mo and U enrichment factors and their ratios (MoEF/UEF) for the studied section. Mo/U ratios are typically moderate (~ 3, similar to modern seawater) under weakly anoxic conditions and high (~ 9, three times that of modern seawater) under highly anoxic–euxinic bottom-water conditions (Takahashi et al. 2014; Algeo and Tribovillard 2009). See Additional file 2: Table S2 for data. (PDF 222 kb)