(Appendix 1-4) Geochemistry, desorption methods, TOC, TC, and mineral content of different settings, supplement to: Ertefai, Tobias F; Heuer, Verena B; Prieto-Mollar, Xavier; Vogt, Christoph; Sylva, Sean P; Seewald, Jeffrey S; Hinrichs, Kai-Uwe (2010): The biogeochemistry of sorbed methane in marine sediments. Geochimica et Cosmochimica Acta, 74, 6033-6048

Tobias F Ertefai, Verena B Heuer, Xavier Prieto-Mollar, Christoph Vogt, Sean P Sylva, Jeffrey S Seewald & Kai-Uwe Hinrichs
Sorption of volatile hydrocarbon gases (VHCs) to marine sediments is a recognized phenomenon that has been investigated in the context of petroleum exploration. However, little is known about the biogeochemistry of sorbed methane and higher VHCs in environments that are not influenced by thermogenic processes. This study evaluated two different extraction protocols for sorbed VHCs, used high pressure equipment to investigate the sorption of methane to pure clay mineral phases, and conducted a geochemical and...
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