Fig. 3: TGA traces of the CO2 and H2O evolved from organic material of magnetite compared to controls following hydrothermal reaction at 90 °C and 16 bar total pressure for 16 h. | Communications Earth & Environment

Fig. 3: TGA traces of the CO2 and H2O evolved from organic material of magnetite compared to controls following hydrothermal reaction at 90 °C and 16 bar total pressure for 16 h.

From: RETRACTED ARTICLE: Generation of long-chain fatty acids by hydrogen-driven bicarbonate reduction in ancient alkaline hydrothermal vents

Fig. 3

CO2 (m/z 44) and H2O (m/z 18) traces resulting from the thermal decomposition of organic material between 35 to 500 °C. (a) Magnetite with H2 and HCO3−. (b) Control sample using magnetite with H2. (c) Control sample using quartz with H2 and HCO3−. (d) Control sample using quartz with H2. Desorption = atmospheric water released from mineral surfaces; Carbonate = water produced from the combustion of hydrogen in the carbonate; vug = water escaping from vugs. Hydrocarbon = components consistent with the combustion of hydrogen in hydrocarbons; Aromatic = component consistent with the combustion of aromatics50,51.

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