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Scientific Drilling The open-access ICDP and IODP journal
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Volume 14
Sci. Dril., 14, 34–38, 2012
https://doi.org/10.2204/iodp.sd.14.04.2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
Sci. Dril., 14, 34–38, 2012
https://doi.org/10.2204/iodp.sd.14.04.2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

  01 Sep 2012

01 Sep 2012

The IODP Expedition 332 : Eyes on the Prism, The NanTroSEIZE Observatories

S. T. Toczko1, A. J. Kopf2, E. Araki3, and the IODP Expedition 332 Scientific Party S. T. Toczko et al.
  • 1Center for Deep Earth Exploration (CDEX), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama Institute for Earth Sciences, 3173- 25 Showa-machi, Kanazawa-ku, Yokohama, Kanagawa 236- 0001 Japan
  • 2MARUM and Department of Geosciences, University of Bremen, 28359 Bremen, Germany
  • 3Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061 Japan

Abstract. The Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) is a major long-term drilling project designed to investigate the seismogenic behavior of subduction zone plate boundaries. Integrated Ocean Drilling Program (IODP) Expedition 332 deployed a long-term borehole monitoring system (LTBMS), an advanced Circulation Obviation Retrofit Kit (CORK)-type observatory. The recovery of pressure and temperature data from a temporary observatory (SmartPlug) deployed during IODP Expedition 319 helped prove the SmartPlug concept. The permanent LTBMS was deployed n the upper 1000 m of Site C0002, while the SmartPlug was recovered from Site C0010 and replaced with a more capable "GeniusPlug", incorporating an extension with a geochem-ical sampler and biological experiment to the original SmartPlug design. SmartPlug pressure and temperature data showed signs of transient pressure events.

doi:10.2204/iodp.sd.14.04.2012

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