Hashimoto, Yoshitaka; Tobin, H. J.; Knuth, M.; Harada, A. (2011): Data report; Compressional and shear wave velocity measurements on sediment in the hanging wall and footwall of megasplay fault, NanTroSEIZE Stage 1. IODP Management International, Washington, DC, United States, In: Kinoshita, Masataka, Tobin, Harold, Thu, Moe Kyaw, Gaillot, Philippe, Bourlange, Sylvain, Chang, Chandong, Conin, Marianne, Gulick, Sean, Jurado Rodriguez, Maria Jose, Martin, Kylara M., McNeill, Lisa, Miyakawa, Ayumu, Moore, J. Casey, Nakamura, Yasuyuki, Saito, Saneatsu, Sawyer, Dale S., Tudge, Joanne, Yamada, Yasuhiro, Ashi, Juichiro, Lallemant, Siegfried, Masago, Hideki, Behrmann, Jan H., Boeckel, Babette, Byrne, Timothy B., Calves, Gerome, Famin, Vincent, Guo, Junhua, Hashimoto, Yoshitaka, Hayashi, Hiroki, Henry, Pierre, Hirono, Tetsuro, Hulme, Samuel M., Kaksonen, Anna Henriikka, Kanagawa, Kyuichi, Kanamatsu, Toshiya, Kopf, Achim, Lewis, Jonathan C., Likos, William John, Pares, Josep Maria, Saito, Hiroyuki, Schmidt-Schierhorn, Friederike, Tomaru, Hitoshi, Underwood, Michael, Zhu, Wen-Lu, Kimura, Gaku, Screaton, Elizabeth J., Curewitz, Daniel, Chester, Frederick, Fabbri, Olivier, Fergusson, Chris, Girault, France E., Goldsby, David, Harris, Robert N., Inagaki, Fumio, Jiang, Tao, Kitamura, Yujin, Knuth, Matt, Li Chunfeng, Liljedahl, Lillemor Claesson, Louis, Laurent, Milliken, Kitty, Nicholson, Uisdean, Riedinger, Natascha, Sakaguchi, Arito, Solomon, Evan, Strasser, Michael, Su Xin, Tsutsumi, Akito, Ujiie, Kohtaro, Yamaguchi, Asuka, Zhao, Xixi, Proceedings of the Integrated Ocean Drilling Program; NanTroSEIZE Stage 1; investigations of seismogenesis, Nankai Trough, Japan; Expeditions 314, 315, and 316 of the riser drilling platform from and to Shingu, Japan; Sites C0001-C0006, 21 September-15 November 2007; and Sites C0001 and C0002, 16 November-18 December 2007; and Sites C0004 and C0006-C0008, 19 December 2007-5 February 2008, 314/315/316, georefid:2011-076495

Abstract:

Compressional and shear wave velocities were examined for sediments from the hanging wall and footwall of the megasplay fault in the Nankai accretionary prism, obtained during Integrated Ocean Drilling Program (IODP), Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) Stage 1. The samples were cored at Expedition 315 Site C0002 and Expedition 316 Site C0004. Three samples were tested from each site. At Site C0002, one sample is from forearc basin sediments and two samples are from accreted sediments. At Site C0004, one sample is from slope-apron sediments and two samples are from underthrust sediments in the footwall of the megasplay fault. Laboratory tests were conducted with controlled pore fluid pressure. Compressional wave velocity covered a range from approximately 2010 to 2370 m/s at Site C0002 and approximately 1790 to 2200 m/s at Site C0004, both under hydrostatic fluid pressure conditions. Shear wave velocity ranged from approximately 720 to 950 m/s at Site C0002 and approximately 650 to 940 m/s at Site C0004. VP/VS ranged from approximately 2.5 to 2.8 at Site C0002 and approximately 2.3 to 2.7 at Site C0004, with a mean of approximately 2.6. Computed shear modulus ranged from approximately 1.0 to 1.88 GPa for Site C0002 and approximately 0.79 to 1.76 GPa at Site C0004. Bulk modulus ranged from approximately 6.60 to 9.24 GPa at Site C0002 and from approximately 4.22 to approximately 7.17 GPa at Site C0004.

Coverage:

West: 136.3800 East: 136.4300 North: 33.1800 South: 33.1300

Relations:

Expedition: 314

Site: 314-C0002

Site: 314-C0004

Expedition: 315

Site: 315-C0002

Expedition: 316

Site: 316-C0004

Expedition: 326

Site: 326-C0002