Supplemental Material: Submarine hydrothermal fluids facilitated the accumulation of cadmium in Lower Cambrian black shales, South China
Data S1-1: Trace element concentrations of Early Cambrian metalliferous units. Data S1-2: Trace element concentrations of barren shales. Data S2: Elements concentrations of sphalerite of barite ores and Zn-Pb sulfide ores (in wt%). Figure S1: Stratigraphic sections of Lower Cambrian Niutitang Formation in platform, slope, and basin facies from the southeastern margin of the Yangtze Block (modified from Fu et al., 2016; Wang, 2017; Shi et al., 2021). Figure S2: The stratigraphic sections of the Liuchapo Formation and the Niutitang Formation, as revealed by drill cores in the Dahebian barite deposit. Figure S3: Total organic carbon (TOC) contents of Lower Cambrian metalliferous units (Ni-Mo–PGE sulfide layer—Xu et al., 2021; V-deposit—Xu et al., 2021; sulfide-bearing barite sediments—Yang et al., 2023).