Fig. 6From: Authigenic carbonate precipitation at the end-Guadalupian (Middle Permian) in China: Implications for the carbon cycle in ancient anoxic oceansChanges in the concentrations of inorganic carbon and sulfur chemical species, pH, carbonate alkalinity, calcite saturation index, and the δ13CDIC values in response to sulfate reduction in the hypothetical Permian seawaterBack to article page