Philippe A. Pezard - Borehole Research Group, Lamont-Doherty Geological Observatory and Department of Geological Sciences, Columbia University
Roger N. Anderson - Borehole Research Group, Lamont-Doherty Geological Observatory and Department of Geological Sciences, Columbia University
James J. Howard - Schlumberger Doll Research, Ridgefield, Connecticut
Stefan M. Luthi - Schlumberger Doll Research, Ridgefield, Connecticut