Table S1 – Gibbs Energy List of Reactions for CSW1.1 Depth Profile Study from CROMO, California, USA May 2016

Data listed are the predetermined reactions used for thermodynamic Gibbs energy calculations performed from a depth profile of the CSW1.1 well at the Coast Range Ophiolite Microbial Observatory, California, USA in May 2016 (see Data Sheet 1). The Gibbs energy change associated with reactions involving H2, CH4, CO, and acetate as electron donors and O2, NO3-, and SO42- as electron acceptors used measured fluid chemistries in Table 1. This table was constructed as a reference to the Gibbs energy figures created in this study.