This data set was acquired with a ship-based Atlas Hydrosweep DS Multibeam Sonar system during Maurice Ewing expedition EW9513 conducted in 1995 (Chief Scientist: Dr. Steve Cande). These data files are of MBSystem Compatible format and include Acoustic Backscatter and Swath Bathymetry data that have not been processed. Data were acquired as part of the project(s): Early Tertiary Tectonic Evolution of the Pacific-Australia-Antarctic Plate Circuit, and funding was provided by NSF grant(s): OCE94-16779 and OCE94-16989.