Large Mass Transport Deposits in Kumano Basin, Nankai Trough, Japan

Part of the Advances in Natural and Technological Hazards Research book series (NTHR, volume 41)

Abstract

Large-scale landsliding is a common process in the Kumano Forearc Basin of the Nankai Trough accretionary prism. We use a 3D seismic data volume to map the seafloor reflection, which shows that there are two surficial landslides, one rotational slump ~3.4 km wide, 1.8 km long and 150 m thick and one disintegrative slide that has left a seafloor scar ~ >3.65 km wide, 2.6 km long and ~200 m deep. We see no evidence for any deposits related to the latter in our data, so the entire mass must have been transported as debris flows/turbidites outside the area covered by 3D data. The slump failures occurred along a bedding plane that dips ~5–7° landward, but the disintegrative landslide has a gently-dipping base and is associated with steep normal fault scarps. Several large subsurface mass-transport deposits (MTD)s are mapped in the 3D seismic data – all have slid along single landward-dipping bedding planes. Their bases range in depth from 140 to 700 m below sea floor (mbsf). The thickest MTD is ~6.5 km2 × 155 m thick, encompassing a volume of ~1.0 km3. The three other large MTDs range from 0.3 to 0.6 km3 in volume. The toes of the MTDs are imbricated, and the imbricate structure, as imaged in continuity displays, is aligned parallel to the slope. Many less extensive, thinner (<20 m thick) MTDs are also present in the Kumano Basin. Regional seismic-stratigraphy and age-constraints on MTD-correlative seismic reflections drilled at IODP drill Sites C0009 and C0002 reveal that four of the investigated MTDs are younger than 0.3–0.44 Ma, three are 0.44–0.9 Ma, and three others are between ~0.9 and 1.24 Ma.

Keywords

NankaiTrough Kumano Basin Submarine landslides MTD 

Notes

Acknowledgments

This work was supported by grants from the US National Science Foundation (OCE-0451790), the US Science Support Program and the Swiss National Science Foundation (Grant # 133481). We thank Paradigm Geophysical for making their software available to us. Derek Sawyer, Yasuhiro Yamada and Aaron Micallef are acknowledged for constructive reviews. SOEST Contribution #9301.

References

  1. Ando M (1975) Source mechanisms and tectonic significance of historical earthquakes along the Nankai Trough, Japan. Tectonophysics 27:119–140CrossRefGoogle Scholar
  2. Aoki Y, Tamano T, Kato S (1982) Detailed structure of the Nankai Trough from migrated seismic sections. In: Watkins, JS, Drake, CL, (eds) Studies in continental margin geology, Am Assoc Petrol Geol Mem 34:309–322Google Scholar
  3. Bahorich M, Farmer S (1995) The coherence cube. Lead Edge 14:1053–1058CrossRefGoogle Scholar
  4. Bangs NL, Hornbach MJ, Moore GF, Park JO (2010) Massive methane release triggered by seafloor erosion offshore southwestern Japan. Geology 38(11):1019–1022. doi: 10.1130/g31491.1 CrossRefGoogle Scholar
  5. Bardet JP, Okal EA, Synolakis CE, Davies HL, Imamura F (2003) Landslide tsunamis: recent findings and research directions. Pure Appl Geophys 160(10–11):1793–1809CrossRefGoogle Scholar
  6. Expedition 315 Scientists (2009) Expedition 315 Site C0002. In: Kinoshita M, Tobin H, Ashi J et al. (eds) Proc. IODP 314/315/316. Integrated Ocean Drilling Program Management Int., Washington, DC.  doi:10.2204/iodp.proc.314315316.124.2009
  7. Gulick SPS, Bangs NLB, Moore GF, Ashi J, Martin KM, Sawyer DS, Tobin HJ, Kuramoto S, Taira A (2010) Rapid forearc basin uplift and megasplay fault development from 3D seismic images of Nankai Margin off Kii Peninsula, Japan. Earth Planet Sci Lett 300(1–2):55–62. doi: 10.1016/j.epsl.2010.09.034 CrossRefGoogle Scholar
  8. Heki K (2007) Secular, transient and seasonal crustal movements in Japan from a dense GPS array: implications for plate dynamics in convergent boundaries. In: Dixon T, Moore JC (eds) The seismogenic zone of subduction thrust faults. Columbia University Press, New York, pp 512–539Google Scholar
  9. Kawamura K, Sakaguchi A, Strasser M, Anma R, Ikeda H (2012) Detailed observation of topography and geologic architecture of a submarine landslide scar in a toe of an accretionary prism. In: Yamada Y. et al (eds) Submarine mass movements and their consequences. Springer, Dordrecht/Heidelberg/London/New York pp 301–309,  10.1007/978-94-007-2162-3_27
  10. Marfurt KJ, Kirlin RL, Farmer SL, Bahorich MS (1998) 3-D seismic attributes using a semblance-based coherency algorithm. Geophysics 63:1150–1165CrossRefGoogle Scholar
  11. Miyazaki SI, Heki K (2001) Crustal velocity field of southwest Japan: subduction and arc-arc collision. J Geophys Res 106(3):4305–4326CrossRefGoogle Scholar
  12. Moore GF, Park J-O, Bangs NL, Gulick SP, Tobin HJ, Nakamura Y, Sato S, Tsuji T, Yoro T, Tanaka H, Uraki S, Kido Y, Sanada Y, Kuramoto S, Taira A (2009). Structural and seismic stratigraphic framework of the NanTroSEIZE Stage 1 transect. In: Kinoshita M, Tobin H, Ashi J, Kimura G, Lallement S, Screaton EJ, Curewitz D, Masago H, Moe KT, The Expedition 314/315/316 Scientists (ed) Proceedings of the IODP, 314/315/316. Integrated Ocean Drilling Program Management International, Inc., Washington, DC. doi: 10.2204/iodp.proc.314315316.102.2009
  13. Moore GF, Boston BB, Sacks AF, Saffer DM (2013) Analysis of normal fault populations in the Kumano Forearc Basin, Nankai Trough, Japan: 1. Multiple orientations and generations of faults from 3-D coherency mapping. Geochem Geophys Geosyst 14(6):1989–2002. doi: 10.1002/ggge.20119 CrossRefGoogle Scholar
  14. Moore GF, Kanagawa K, Strasser M, Dugan B, Maeda L, Toczko S, Sci. Party IODP Exp. 338 (2014) IODP Expedition 338: NanTroSEIZE Stage 3: NanTroSEIZE plate boundary deep riser 2. Sci Drill 17:1–12. doi: 10.5194/sd-17-1-2014 CrossRefGoogle Scholar
  15. Moore, GF, Boston, BB, Strasser, M, Underwood, MB, Ratliff, RA (2015) Evolution of tectono-sedimentary systems in the Kumano Basin, Nankai Trough forearc. Mar Petrol Geol 67:604–616. doi: 10.1016/j.marpetgeo.2015.05.032
  16. Okino K, Kato Y (1995) Geomorphological study on a clastic accretionary prism: the Nankai Trough. Island Arc 4:182–198CrossRefGoogle Scholar
  17. Satake K (2012) Tsunamis generated by submarine landslides. In: Yamada Y (ed) Submarine mass movements and their consequences. Advances in natural and technological hazards research, vol 31. Springer, Dordrecht/Heidelberg/London/New York pp 475–484. doi: 10.1007/978-94-007-2162-3_42
  18. Seno T, Stein S, Gripp AE (1993) A model for the motion of the Philippine Sea plate consistent with NUVEL-1 and geological data. J Geophys Res 98:17, 941–917, 948Google Scholar
  19. Strasser M, Moore GF, Kimura G, Kopf AJ, Underwood MB, Guo J, Screaton EJ (2011) Slumping and mass transport deposition in the Nankai fore arc: evidence from IODP drilling and 3-D reflection seismic data. Geochem Geophys Geosyst 12.  doi:10.1029/2010gc003431
  20. Strasser M, Henry P, Kanamatsu T, Thu MK, Moore GF, IODP Expedition 333 scientists (2012) Scientific drilling of mass-transport deposits in the Nankai accretionary wedge: first results from IODP Exp 333. In: Yamada Y et al (eds) Submarine mass movements and their consequences. Advances in natural and technological hazards research, vol 31. Springer, Dordrecht/Heidelberg/London/New York pp 671–681.  doi:10.1007/978-94-007-2162-3_60
  21. Underwood MB, Moore GF (2012) Evolution of sedimentary environments in the subduction zone of southwest Japan: recent results from the NanTroSEIZE Kumano transect. In: Busby CJ, Azor AP (eds) Tectonics of sedimentary basins: recent advances. Wiley-Blackwell, New York, pp 310–326CrossRefGoogle Scholar
  22. Wang K, Hu Y (2006) Accretionary prisms in subduction earthquake cycles: the theory of dynamic Coulomb wedge. J Geophys Res 111(B6):B06410. doi: 10.1029/2005jb004094 Google Scholar

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Department of Geology & GeophysicsUniversity of HawaiiHonoluluUSA
  2. 2.Geological Institute, ETH ZurichZurichSwitzerland

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