Amorphous silica content of sediment from Sites C0011 and C0012 in the Shikoku Basin on the NanTroSEIZE transect

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doi: 10.2204/iodp.proc.322.204.2013
Author(s): Spinelli, Glenn A.; Hutton, Ashley
Integrated Ocean Drilling Program, Expedition 322 Scientists, College Park, TX
Author Affiliation(s): Primary:
New Mexico Institute of Mining and Technology, Earth and Environmental Science Department, Socorro, NM, United States
Other:
Japan Agency for Marine-Earth Science and Technology, Japan
Tohoku University, Japan
Université de Toulouse, France
Rice University, United States
National Centre for Antarctic and Ocean Research, India
Osaka University, Japan
University of Bremen, Germany
Pennsylvania State University, United States
University of Kiel, Germany
University Joseph Fourier, France
University of Melbourne, Australia
Chiba University, Japan
Geological Survey of Japan, Japan
University of Tokyo, Japan
University College London, United Kingdom
Boston University, United States
Lamont-Doherty Earth Observatory, United States
New Mexico Institute of Mining and Technology, United States
Oregon State University, United States
University of Leicester, United Kingdom
China University of Geosciences, China
Doshisha University, Japan
University of California at Santa Cruz, United States
Volume Title: Proceedings of the Integrated Ocean Drilling Program; NanTroSEIZE Stage 2; subduction inputs; Expedition 322 of the riser drilling platform, Yokkaichi, Japan, to Shingu, Japan; Sites C0011 and C0012, 1 September-10 October 2009
Volume Author(s): Underwood, Michael B.; Saito, Saneatsu; Kubo, Yu'suke; Sanada, Yoshinori; Chiyonobu, Shun; Destrigneville, Christine; Dugan, Brandon; Govil, Pawan; Hamada, Yohei; Heuer, Verena; Hüpers, Andre; Ikari, Matt; Kitamura, Yujin; Kutterolf, Steffen; Labanieh, Shasa; Moreau, John; Naruse, Hajime; Oda, Hirokuni; Park, Jin-Oh; Pickering, Kevin T.; Scudder, Rachel; Slagle, Angela; Spinelli, Glenn A.; Torres, Marta; Tudge, Joanne; Wu Huaichun; Yamamoto, Tomohiro; Yamamoto, Yuzuru; Zhao, Xixi
Source: Proceedings of the Integrated Ocean Drilling Program; NanTroSEIZE Stage 2; subduction inputs; Expedition 322 of the riser drilling platform, Yokkaichi, Japan, to Shingu, Japan; Sites C0011 and C0012, 1 September-10 October 2009, Michael B. Underwood, Saneatsu Saito, Yu'suke Kubo, Yoshinori Sanada, Shun Chiyonobu, Christine Destrigneville, Brandon Dugan, Pawan Govil, Yohei Hamada, Verena Heuer, Andre Hüpers, Matt Ikari, Yujin Kitamura, Steffen Kutterolf, Shasa Labanieh, John Moreau, Hajime Naruse, Hirokuni Oda, Jin-Oh Park, Kevin T. Pickering, Rachel Scudder, Angela Slagle, Glenn A. Spinelli, Marta Torres, Joanne Tudge, Wu Huaichun, Tomohiro Yamamoto, Yuzuru Yamamoto and Xixi Zhao; Integrated Ocean Drilling Program, Expedition 322 Scientists, College Park, TX. Proceedings of the Integrated Ocean Drilling Program (Online), Vol.322, 7p. Publisher: IODP Management International, Washington, DC, United States. ISSN: 1930-1014
Note: In English. 14 refs.; illus., incl. 1 table
Summary: We determined the amorphous silica content of sediment from two sites in Shikoku Basin along the Nankai Trough Seismogenic Zone Experiment transect, offshore southern Japan. We examined hemipelagic mud from Sites C0011 and C0012 cored during Expeditions 322 and 333 of the Integrated Ocean Drilling Program. We determined amorphous silica content using an alkaline leaching technique. Amorphous silica content is ≤1.1 wt% in all samples. Amorphous silica content is higher in the shallow sediment (lithologic Subunit IA) than in the deeper sediment. At Site C0011, amorphous silica content decreases from 0.75.1.10 wt% in Subunit IA (above 252 meters below seafloor [mbsf]) to 0.13.0.59 wt% in deeper lithologic units (below 252 mbsf). At Site C0012, four samples from Subunit IA contain 0.58.0.66 wt% amorphous silica; samples from deeper lithologic units contain 0.13.0.40 wt% amorphous silica.
Year of Publication: 2013
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 07 Marine Geology and Oceanography; Amorphous materials; Asia; Boreholes; Concentration; Cores; Expedition 322; Far East; IODP Site C0011; IODP Site C0012; Integrated Ocean Drilling Program; Japan; Marine sediments; NanTroSEIZE; North Pacific; Northwest Pacific; Pacific Ocean; Sediments; Shikoku Basin; Silica; Spatial variations; West Pacific
Coordinates: N324944 N324945 E1365256 E1365254
N324453 N324453 E1365501 E1365501
Record ID: 2013018341
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