1. Hydrology Program, Department of Earth and Environmental Science; New Mexico Institute of Mining and Technology; Socorro New Mexico USA
2. Office of Liaison and Cooperative Research, Integrated Ocean Drilling Program, Inc.; Tokyo University of Marine Science and Technology; Tokyo Japan
3. Department of Geology and Geophysics; Woods Hole Oceanographic Institution; Woods Hole Massachusetts USA
4. Department of Geological and Atmospheric Science; Iowa State University; Ames Iowa USA
5. Department of Earth Science; Rice University; Houston Texas USA