This data set was acquired with a ship-based ODEC Bathy2000 Subbottom Seismic system during Nathaniel B. Palmer expedition NBP0701 conducted in 2006 (Chief Scientist: Dr. Steve Cande). These data files are of SEGY format and include Active Subbottom Seismic shot data that have not been processed. Data were acquired as part of the project(s): The connection between mid-Cenozoic seafloor spreading and the western Ross Sea Embayment, and funding was provided by NSF grant(s): ANT04-40959.