Guo, Junhua and Underwood, Michael B. (2012): Clay mineral assemblages from the Nankai Trough accretionary prism and the Kumano Basin, IODP Expeditions 315 and 316, NanTroSeize Stage 1
Leg/Site/Hole:
Related Expeditions:
IODP 314
Identifier:
ID:
2012-021066
Type:
georefid
ID:
10.2204/iodp.proc.314315316.202.2012
Type:
doi
Creator:
Name:
Guo, Junhua
Affiliation:
University of Missouri, Department of Geological Sciences, Columbia, MO, United States
Role:
author
Name:
Underwood, Michael B.
Affiliation:
University of Wisconsin-Madison, United States
Role:
author
Identification:
Title:
Clay mineral assemblages from the Nankai Trough accretionary prism and the Kumano Basin, IODP Expeditions 315 and 316, NanTroSeize Stage 1
Year:
2012
Source:
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, 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, Tamaru, Hitoshi, Underwood, Michael B., Zhu, Wen-Lu, Kimura, Gaku, Screaton, Elizabeth J., Curewitz, Daniel, Chester, Frederick, Fabbri, Olivier, Fergusson, Chris, Girault, France E., Goldsby, David, Harris, Robert, Inagaki, Fumio, Jiang, Tao, Kitamura, Yujin, Knuth, Matthew, Li Chunfeng, Liljedahl, Lillemor Claesson, Louis, Laurent, Milliken, Kitty, Nicholson, Uisdean, Riedinger, Natascha, Sakaguchi, Arito, Solomon, Evan, Strasser, Michael, Xin Su, 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
Publisher:
IODP Management International, Washington, DC, United States
Volume:
314/315/316
Issue:
Pages:
Abstract:
This report documents the composition of clay mineral assemblages from six sites along the Kumano transect of the Nankai Trough subduction zone offshore south-central Japan. Coring was completed during Expeditions 315 and 316 of the Integrated Ocean Drilling Program, as part of Stage 1 of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE). A total of 702 samples of hemipelagic mud and mudstone were analyzed by X-ray diffraction, using oriented aggregates of the clay-size fraction (<2 mu m). Smectite varies the most among the clay-size constituents, ranging in relative abundance from 6% to 66%. On average, the expandability of illite/smectite mixed-layer clay is equal to 65%, and there are no progressive changes in clay mineral diagenesis over the depths sampled. We recognize a temporal pattern in composition that is consistent with what has been documented elsewhere across the Nankai subduction margin. The detrital clays shifted gradually from a smectite-rich assemblage during the late Miocene to more illite-chlorite-rich assemblages during the Pliocene and Pleistocene. Most of the compositional differences between lithostratigraphic units can be attributed to differences in their depositional ages.
Language:
English
Genre:
Serial
Rights:
URL:
Coverage: Geographic coordinates: North:33.1800 West:136.3800 East:
136.4800 South:33.0100
Keywords: Stratigraphy; Geochemistry of rocks, soils, and sediments; accretionary wedges; Asia; boreholes; Cenozoic; clay minerals; continental margin; cores; Expedition 314; Expedition 315; Expedition 316; Far East; Honshu; Integrated Ocean Drilling Program; IODP Site C0001; IODP Site C0002; IODP Site C0004; IODP Site C0006; IODP Site C0007; IODP Site C0008; Japan; Kii Peninsula; Kumano Basin; lithostratigraphy; marine sediments; mineral assemblages; Nankai Trough; NanTroSEIZE; Neogene; North Pacific; Northwest Pacific; Pacific Ocean; Pleistocene; Quaternary; sedimentary rocks; sediments; sheet silicates; silicates; subduction zones; Tertiary; West Pacific; X-ray diffraction data;
.