This data set was acquired with a ship-based Navigation system during Nathaniel B. Palmer expedition NBP9702 conducted in 1997 (Chief Scientist: Dr. Steve Cande). These data files are of MGDS:Nav format and include Primary Navigation data and were processed after data collection. Data were acquired as part of the project(s): Early Tertiary Evolution of the Pacific-Australian-Antarctic Plate Circuit, and funding was provided by NSF grant(s): OCE94-16989.