Supplement to: Whiticar, Michael J; Faber, Eckhard (1989): Molecular and stable isotope composition of headspace and total hydrocarbon gases at ODP Leg 104, Sites 642, 643, and 644, Vøring Plateau, Norwegian Sea. In: Eldholm, O; Thiede, J; Taylor, E; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 104, 327-334, https://doi.org/10.2973/odp.proc.sr.104.127.1989