NanTroSEIZE Stage 1 expeditions: introduction and synthesis of key results.

Tobin, Harold, Kinoshita, Masataka, Ashi, Juichiro, Lallement, Siegfried, Kimura, Gaku, Screaton, Elizabeth, Moe, Kyaw Thu, Masago, Hideki, Curewitz, Daniel, Kitamura, Yujin and Behrmann, Jan Hinrich (2009) NanTroSEIZE Stage 1 expeditions: introduction and synthesis of key results. In: 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. . Proceedings of the Integrated Ocean Drilling Program, 314/315/316 . IODP, Washington, DC, USA, pp. 1-20. DOI 10.2204/iodp.proc.314315316.101.2009.

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Abstract

Integrated Ocean Drilling Program Expeditions 314, 315, and 316 were carried out as a unified program of drilling collectively known as Stage 1 of the Nankai Trough Seismogenic Zone Experiment, a multistage complex drilling project. A transect of eight sites was selected for riserless drilling to target the frontal thrust region, midslope megasplay fault region, and Kumano forearc basin region. Two of these sites are preparatory pilot holes for planned deep riser drilling operations, whereas the others targeted fault zone material in the shallow, presumed aseismic zone. Expedition 314 was dedicated to in situ measurement of physical properties and borehole imaging through logging while drilling in holes dedicated to that purpose. Expedition 315 was devoted to core sampling and downhole temperature measurements at one site in the megasplay region and one site in the forearc basin. Expedition 316 targeted the frontal and out-of-sequence megasplay fault region in the mid-slope environment. Results on accretionary complex structure, lithology and age, physical properties, and state of stress, which are documented in full in the site chapters of this volume, are here synthesized across the expeditions.

Document Type: Book chapter
Keywords: NanTroSEIZE
Research affiliation: OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-GDY Marine Geodynamics
Refereed: No
Open Access Journal?: Yes
DOI etc.: 10.2204/iodp.proc.314315316.101.2009
ISSN: 1930-1022
Date Deposited: 17 Dec 2009 11:59
Last Modified: 06 Jul 2012 15:10
URI: http://oceanrep.geomar.de/id/eprint/3975

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