Kerry Swain (Logging Engineer, Schlumberger), Trevor Williams (Logging Staff Scientist, IODP-USIO/LDEO) and Johanna Lofi (Logging Staff Scientist, IODP-USIO/Universite Montpellier II, France) in the Schlumberger logging office during VSP operations. Insets show sequence of air rising to the surface from firing of air guns. (Credit John Beck, IODP/TAMU) [Photo ID: exp339_ 055] Back to expedition photos.