Goldberg, David S. (2005): Reprocessing of wireline sonic logs in turbidites and hemipelagic sediments at ODP Site 1173. Texas A&M University, Ocean Drilling Program, College Station, TX, United States, In: Moore, Gregory F., Taira, Asahiko, Klaus, Adam, Becker, Keir, Becker, Luann, Boeckel, Babette, Cragg, Barry A., Dean, P. Allison, Fergusson, Christopher L., Henry, Pierre, Hirano, Satoshi, Hisamitsu, Toshio, Hunze, Sabine, Kastner, Miriam, Maltman, Alex J., Morgan, Julia K., Murakami, Yuki, Saffer, Demian M., Sanchez-Gomez, Mario, Screaton, Elizabeth J., Smith, David C., Spivack, Arthur J., Steurer, Joan F., Tobin, Harold J., Ujiie, Kohtaro, Underwood, Michael B., Wilson, Moyra E. J., Mikada, Hitoshi, Moore, J. Casey, Austin, Gary L., Bangs, Nathan L. B., Bourlange, Sylvain, Broilliard, Julien, Brueckmann, Warner, Corn, Ernest Ray, Davis, Earl E., Flemings, Peter B., Goldberg, David S., Gulick, Sean P. S., Hansen, Martin Bak, Hayward, Nathan, Hills, Denise J., Ienaga, Masanori, Ishiguro, Hiroyasu, Kinoshita, Masataka, Macdonald, Robert D., McNeill, Lisa, Obana, Shinichi, Hong, Ong Swee, Peacock, Sheila, Pettigrew, Thomas L., Saito, Saneatsu, Sawa, Takao, Thaiprasert, Nophawit, Tsurumi, Hikaru, Proceedings of the Ocean Drilling Program; scientific results; deformation and fluid flow processes in the Nankai Trough accretionary prism; coring, logging while drilling and advanced CORKs covering Legs 190 to 196 of the cruises of the drilling vessel JOIDES Resolution; Sydney, Australia, to Yokohama, Japan, Sites 1173-1178, 23 May-16 July 2000; and Keelung, Taiwan, to Kochi, Japan, Sites 808-1173, 2 May-1 July 2001, 190/196, georefid:2005-060952

High-quality sonic log waveforms were recorded during Leg 190 from 65- to 360 m below seafloor (mbsf) in Hole 1173A. Schlumberger's wireline Dipole Shear Imager (DSI) tool was used, and the data were reprocessed using a phase-picking method to improve the shipboard P- and S-wave logs. This postcruise work focused on evaluating the high variability observed in the P-wave log in the upper interval of the hole and an inversion (low Vp and Vs) below 350 mbsf. In these intervals, sonic signals were weak and difficult to identify using standard shipboard processing methods. The outcome of the reprocessing was successful and extracted improved P-wave logs and S-wave values as low as 280 m/s in the upper interval of the hole and below 350 mbsf. The reprocessed data are currently available online at
West: 135.0200 East: 135.0200 North: 32.1500 South: 32.1500
Expedition: 190
Site: 190-1173
Expedition: 196
Site: 196-1173
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