Hydrothermal Vents (continued) First vent paper:Lonsdale,P.(1977)."Clustering of suspension-feeding macrobenthos near abyssal hydrothermal vents at oceanic spreading centers". Deep Sea Research 24(9):857. o6 Supercritical fluid-a phase of water having both gas and liquid properties.Formed at high temperature and high pressure. 1992 paper The Deep Hot Biosphere by Thomas Gold. Mining vents?Nautilus Minerals and Neptune MineralsHydrothermal Vents (continued) • First vent paper: Lonsdale, P. (1977). "Clustering of suspension-feeding macrobenthos near abyssal hydrothermal vents at oceanic spreading centers". Deep Sea Research 24 (9): 857. • Supercritical fluid - a phase of water having both gas and liquid properties. Formed at high temperature and high pressure. • 1992 paper The Deep Hot Biosphere by Thomas Gold. • Mining vents? Nautilus Minerals and Neptune Minerals