Supplement to: Honnorez, Jose J; von Herzen, Richard P; Barrett, T J; Borella, Peter E; Moorby, S A; Karato, Shun-ichiro; Shipboard Scientific Party (1983): Hydrothermal mounds and young ocean crust of the Galapagos: preliminary Deep Sea Drilling Results. In: Honnorez, J; Von Herzen, RP; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 70, 459-481, https://doi.org/10.2973/dsdp.proc.70.130.1983