Research Article

The Effect of Water Chemistry on Thermochemical Sulfate Reduction: A Case Study from the Ordovician in the Tazhong Area, Northwest China

Figure 4

Sulfur isotopic composition of water, H2S, and anhydrite. Sulfur isotopic of bedded anhydrite is from Cai et al. [10]. Sulfur isotopic of H2S in the Cambrian is from Cai et al. [21].