Carbon and Nitrogen Speciation in N-poor C-O-H-N Fluids at 6.3 GPa and 1100-1400 °C.

ABSTRACT: Deep carbon and nitrogen cycles played a critical role in the evolution of the Earth. Here we report on successful studying of speciation in C-O-H-N systems with low nitrogen contents at 6.3 GPa and 1100 to 1400 °C. At fO₂ near Fe-FeO (IW) equilibrium, the synthesised fluids contain more than thirty species. Among them, CH₄, C₂H₆, C₃H₈ and C₄H₁₀ are main carbon species. All carbon species, except for C₁-C₄ alkanes and alcohols, occur in negligible amounts in the fluids generated in systems with low H₂O, but С₁₅-С₁₈ alkanes are slightly higher and oxygenated hydrocarbons are more diverse at higher temperatures and H₂O concentrations. At a

SUBMITTER: Sokol AG 

PROVIDER: S-EPMC5428864 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature