T51I:
Subduction Zone Processes at the Hikurangi Margin, New Zealand III Posters


Submit an Abstract to this Session


Session ID#: 44155

Session Description:
The Hikurangi subduction zone offshore New Zealand's North Island exhibits pronounced along-strike changes in margin characteristics that make it an outstanding natural laboratory to investigate a wide range of fundamental subduction processes. This unique aspect of the subduction zone has sparked a plethora of new onshore and offshore geological and geophysical investigations. These experiments are helping to unravel the physical processes that control subduction plate boundary geodynamics and deformation.  Recent efforts include scientific ocean drilling, multiple active and passive seismic experiments, seafloor geodetic deployments, and paleoseismic investigations.  We welcome submissions that advance understanding of the Hikurangi subduction zone, including processes that underlie slow slip events and earthquake cycle behavior, volcanism and intra-arc rifting, volatile and fluid cycling, long-term subduction margin evolution, and geohazards associated with the plate boundary. Modeling studies, and comparative studies with other subduction zones to elucidate factors controlling subduction zone processes are also very welcome.
Primary Convener:  Laura M Wallace, GNS Science, Lower Hutt, New Zealand; GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Conveners:  Rebecca E Bell, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, Kimihiro Mochizuki, University of Tokyo, Earthquake Research Institute, Bunkyo-ku, Japan and Demian M Saffer, Pennsylvania State University, University Park, United States
Primary Liaison:  Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States
Chairs:  Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States and Demian M Saffer, Pennsylvania State University, University Park, United States
OSPA Liaison:  Rebecca E Bell, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom

Cross-Listed:
  • G - Geodesy
  • NH - Natural Hazards
  • S - Seismology
Index Terms:

1207 Transient deformation [GEODESY AND GRAVITY]
7230 Seismicity and tectonics [SEISMOLOGY]
8170 Subduction zone processes [TECTONOPHYSICS]
8185 Volcanic arcs [TECTONOPHYSICS]

Abstracts Submitted to this Session:

HIGH P-WAVE SPEEDS IN THE UPPER MANTLE AND THEIR POSSIBLE ASSOCIATION WITH SUPER PLUMES (361106)
Tim A Stern, Victoria University of Wellington, School of Earth Sciences, Wellington, New Zealand, Simon Henry Lamb, Victoria University of Wellington, School of Geography, Environment and Earth Sciences, Wellington, New Zealand, Kimihiro Mochizuki, University of Tokyo, Earthquake Research Institute, Bunkyo-ku, Japan, Karsten Gohl, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Geophysics, Bremerhaven, Germany, Katharina Hochmuth, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven and the University of Tasmania, Bremerhaven, Germany, James Daniel Paul Moore, Earth Observatory of Singapore, Singapore, Singapore, Pasan Herath, Victoria University of Wellington, Wellington, New Zealand and David A Okaya, University of Southern California, Department of Earth Sciences, Los Angeles, United States
Understanding subduction dynamics in the Southwest Pacific (369057)
Diandian Peng1, Lijun Liu1 and Jiashun Hu2, (1)University of Illinois at Urbana-Champaign, Department of Earth Science and Environmental Change, Urbana, United States, (2)Southern University of Science and Technology, Department of Earth and Space Sciences, Shenzhen, China
Seismicity Patterns in the Northern Taupo Volcanic Zone at the Transition to Back-Arc Spreading (451304)
Derrick Murekezi1, Carrie Leibensperger2, Thi Quan Hoang Pham3, Ryan James Gallacher4, Hubert Jerzy Zal5, Franz Lutz6, Reece Franks7, Sam Treweek7, Cynthia J Ebinger8, Martha K Savage7 and Jennifer Dawn Eccles9, (1)Tulane University of Louisiana, New Orleans, LA, United States, (2)Tulane University of Louisiana, New Orleans, United States, (3)Tulane University of Louisiana, Earth and Environmental Sciences, New Orleans, LA, United States, (4)International Seismological Centre, Thatcham, United Kingdom, (5)Victoria University of Wellington, School of Geography, Environment and Earth Sciences, Wellington, New Zealand, (6)University of Auckland, Wellington, New Zealand, (7)Victoria University of Wellington, Wellington, New Zealand, (8)Tulane University, School of Science & Engineering, New Orleans, United States, (9)The University of Auckland, Auckland, New Zealand
Velocity structure and relocated aftershocks in the Kaikōura to Palmerston region, New Zealand, from body-wave seismic tomography (410592)
Federica Lanza1, Donna Eberhart-Phillips2, Clifford H Thurber3, Calum John Chamberlain4, Katie Jacobs5, Emily Warren-Smith6 and Martha K Savage4, (1)University of Wisconsin Madison, Geoscience, Madison, WI, United States, (2)University of California Davis, Earth and Planetary Science, Davis, CA, United States, (3)University of Wisconsin Madison, Department of Geoscience, Madison, WI, United States, (4)Victoria University of Wellington, Wellington, New Zealand, (5)Earth Sciences New Zealand, Lower Hutt, New Zealand, (6)GNS Science, Lower Hutt, New Zealand
Adjoint Tomography of the Hikurangi Subduction Zone and New Zealand’s North Island (405117)
Bryant Chow1, Yoshihiro Kaneko2, Vipul Silwal3, Carl Tape4 and John Townend1, (1)Victoria University Wellington, Wellington, New Zealand, (2)Kyoto University, Department of Geophysics, Kyoto, Japan, (3)University of Alaska Fairbanks, Geophysical Institute and Department of Geosciences, Fairbanks, AK, United States, (4)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, United States
Along-strike variation of incoming plate to the Hikurangi seismogenic zone: results from Seismogenesis at Hikurangi Integrated Research Experiment (SHIRE) (384888)
Shuichi Kodaira1, Gou Fujie1, Ryuta Arai1, Koichiro Obana2, Yojiro Yamamoto3, Seiichi Miura3, Kimihiro Mochizuki4, Yukihiro Nakatani5, Stuart A Henrys6, Daniel H N Barker7, Dan Bassett6, Jess Irene Tsahai Hillman7, Harm J Van Avendonk8, Nathan L Bangs9 and SHIRE Team, (1)JAMSTEC, Yokohama, Japan, (2)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics, Kanagawa, Japan, (3)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (4)University of Tokyo, Earthquake Research Institute, Bunkyo-ku, Japan, (5)Kagoshima University, Kagoshima, Japan, (6)Earth Sciences New Zealand, Lower Hutt, New Zealand, (7)GNS Science, Lower Hutt, New Zealand, (8)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (9)University of Texas Institute for Geophysics, Austin, United States
Along-strike variations in the Hikurangi Subduction zone: land-based seismic observations during the 2017-2018 SHIRE seismic onshore-offshore imaging project (384948)
Stuart A Henrys1, Katie Jacobs2, David A Okaya3, Harm J Van Avendonk4, Nathan L Bangs5, Eiji Kurashimo6, Ryuta Arai7, Shuichi Kodaira8, Martha K Savage9, Daniel H N Barker1, Dan Bassett2 and SHIRE Team, (1)GNS Science, Lower Hutt, New Zealand, (2)Earth Sciences New Zealand, Lower Hutt, New Zealand, (3)University of Southern California, Department of Earth Sciences, Los Angeles, United States, (4)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (5)Univ Texas, Institute for Geophysics, Austin, United States, (6)The University of Tokyo, Earthquake Research Institute, Tokyo, Japan, (7)University of Hawaii at Manoa, Honolulu, United States, (8)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan, (9)Victoria University of Wellington, Wellington, New Zealand
Coseismic Uplift and Coastal Emergence Along the Southern Hikurangi Margin, North Island, New Zealand (466956)
Emmons McKinney1, Jeffrey S Marshall1, Janine Angenent1, Jennifer E Hamel1, Caleb N Miller1, Jessika Valenciano1, Christopher J White1, Noah M Zohbe1, Kathryn Clark2 and Nicola J Litchfield2, (1)California State Polytechnic University Pomona, Geological Sciences, Pomona, CA, United States, (2)GNS Science, Lower Hutt, New Zealand
Conjugate Strike Slip Faulting Associated with Seamount Subduction at the Hikurangi Deformation Front, New Zealand (376058)
Sam R. Davidson, University of Canterbury, Geological Sciences, Christchurch, New Zealand, Philip Barnes, National Institute of Water & Atmospheric Research, Wellington, New Zealand, Jarg R. Pettinga, University of Canterbury, School of Earth and Environment, Christchurch, New Zealand, Andy Nicol Prof, University of Canterbury, Geohazards & Tectonics, Christchurch, New Zealand, Joshu J Mountjoy, Earth Sciences New Zealand, Wellington, New Zealand and Stuart A Henrys, Earth Sciences New Zealand, Lower Hutt, New Zealand
Seismic Depth Images and Velocity Models at the Southern Hikurangi Subduction Margin: Insights into Emergent Deformation and Dewatering (431817)
Gareth James Crutchley, GNS Science, Lower Hutt, New Zealand, Dirk Klaeschen, GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany, Stuart A Henrys, Earth Sciences New Zealand, Lower Hutt, New Zealand and Ingo Andreas Pecher, University of Auckland, Auckland, New Zealand
Deciphering Shifts in Faulting, Sedimentation, and Stress State in the Southern Hikurangi Accretionary Prism Using Structural Interpretation of Seismic Reflection Data (456065)
Garrett W Tate, Vanderbilt University, Nashville, TN, United States
Subduction structure of the Hikurangi Plateau, from travel-time inversion of OBS data, offshore of the Wellington region, the southern North Island, New Zealand (428705)
Kimihiro Mochizuki1, Stuart A Henrys2, Rupert Sutherland3, David A Okaya4, Tomoaki Yamada5, Masanao Shinohara6, Takaya Iwasaki7, Hiroshi Sato6, Ryuta Arai8, Gou Fujie9, Yojiro Yamamoto9, Yukihiro Nakatani10, Shuichi Kodaira11, Daniel H N Barker12, Dan Bassett12, Harm J Van Avendonk13 and Nathan L Bangs14, (1)University of Tokyo, Earthquake Research Institute, Bunkyo-ku, Japan, (2)Earth Sciences New Zealand, Lower Hutt, New Zealand, (3)Victoria University of Wellington, Wellington, New Zealand, (4)University of Southern California, Department of Earth Sciences, Los Angeles, United States, (5)ERI, TheUniversity of Tokyo, Bunkyo-ku, Japan, (6)Univ Tokyo, Tokyo, Japan, (7)the University of Tokyo, Tokyo, Japan, (8)University of Hawaii at Manoa, Honolulu, United States, (9)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (10)Earthquake Research Institute, The University of Tokyo, Tokyo, Japan, (11)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan, (12)GNS Science, Lower Hutt, New Zealand, (13)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (14)Univ Texas, Institute for Geophysics, Austin, United States
What Causes the Variations in Shear Wave Splitting Measurements; An Account From Empirical and Numerical Studies (426619)
Kenny Mensah Graham1, Martha K Savage1, Richard Arnold1 and Hubert Jerzy Zal2, (1)Victoria University of Wellington, Wellington, New Zealand, (2)Victoria University of Wellington, School of Geography, Environment and Earth Sciences, Wellington, New Zealand
Seismic Anisotropy and Vp/Vs Changes Measured on Ocean Bottom Seismometers Suggest Fluid Pressure Changes Occur With Slow Slip off the Hikurangi Margin, New Zealand (425148)
Martha K Savage1, Hubert Jerzy Zal1, Katie Jacobs2, Stefan Mroczek3, Jefferson Yarce4, Erin Todd5, Heather R Crume6, Jenny S Nakai7,8, Kenny Mensah Graham3, Yuriko Iwasaki9, Anne Sheehan10, Kimihiro Mochizuki11, Susan Y Schwartz12 and Spahr C Webb13, (1)Victoria University of Wellington, School of Geography, Environment and Earth Sciences, Wellington, New Zealand, (2)Earth Sciences New Zealand, Lower Hutt, New Zealand, (3)Victoria University of Wellington, Wellington, New Zealand, (4)Universidad Nacional de Colombia, Medellín, Colombia, (5)University of Otago, Dunedin, New Zealand, (6)Santa Cruz Geophysics, Santa Cruz, United States, (7)University of Colorado, CIRES, Boulder, CO, United States, (8)University of Colorado at Boulder, Boulder, CO, United States, (9)Earthquake Research Institute, The University of Tokyo, Tokyo, Japan, (10)University of Colorado at Boulder, Boulder, United States, (11)University of Tokyo, Earthquake Research Institute, Bunkyo-ku, Japan, (12)University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, (13)Lamont-Doherty Earth Observatory, Palisades, NY, United States
IODP borehole observatories to monitor slow slip at the offshore Hikurangi subduction zone (399972)
Laura M Wallace1,2, Evan A Solomon3, Patrick M Fulton4, Demian M Saffer5, Katerina E Petronotis6, Hans W Jannasch7, Earl E Davis8, Bill Rhinehart9, John Van Hyfte9, Kevin Grigar6, Philip Barnes10, Rebecca E Bell11, Ingo Andreas Pecher12, Leah LeVay13 and IODP Expedition 372 and 375 Science Parties, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)GNS Science, Lower Hutt, New Zealand, (3)Univ Washington, Seattle, United States, (4)Texas A&M University College Station, Center for Tectonophysics, College Station, United States, (5)Pennsylvania State University, University Park, United States, (6)Texas A&M University, International Ocean Discovery Program, College Station, United States, (7)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (8)Pacific Geoscience Ctr, Sidney, BC, Canada, (9)Texas A&M University College Station, International Ocean Discovery Program, College Station, United States, (10)National Institute of Water & Atmospheric Research, Wellington, New Zealand, (11)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (12)University of Auckland, Auckland, New Zealand, (13)Texas A&M University, International Ocean Discovery Program, College Station, TX, United States
Utilizing coastal-reflected tsunami waves observed by the ocean bottom pressure gauges to improve offshore earthquake source parameters: Application to the 2016 Te Araroa earthquake, New Zealand (Mw 7.0) (352033)
Tatsuya Kubota1, Tatsuhiko Saito1, Yoshihiro Ito2, Yoshihiro Kaneko3, Laura M Wallace4,5, Syuichi Suzuki6, Ryota Hino6 and Stuart A Henrys7, (1)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, (2)Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan, (3)Kyoto University, Department of Geophysics, Kyoto, Japan, (4)University of Texas, Institute for Geophysics, Austin, TX, United States, (5)GNS Science-Institute of Geological and Nuclear Sciences Ltd, Lower Hutt, New Zealand, (6)Tohoku University, Graduate School of Science, Sendai, Japan, (7)Earth Sciences New Zealand, Lower Hutt, New Zealand
NZ3D OBS experiment: Toward elucidating high-resolution plate boundary structure, offshore Gisborne, Hikurangi margin, New Zealand (371527)
Ryuta Arai1, Shuichi Kodaira1, Richard L Kellett2, Valerie K Stucker2, Dan Bassett3, Stuart A Henrys3, Koichiro Obana4, Nathan L Bangs5, Daniel H N Barker2, Rebecca E Bell6, Kimihiro Mochizuki7, Seiichi Miura8, Bill Fry2 and NZ3D team, (1)JAMSTEC, Yokohama, Japan, (2)GNS Science, Lower Hutt, New Zealand, (3)Earth Sciences New Zealand, Lower Hutt, New Zealand, (4)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics, Kanagawa, Japan, (5)Univ Texas, Institute for Geophysics, Austin, United States, (6)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (7)University of Tokyo, Earthquake Research Institute, Bunkyo-ku, Japan, (8)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan
The Role of Seamount Subduction on Shallow Slow Slip Distribution, Northern Hikurangi Margin, New Zealand (428087)
Daniel H N Barker1, Stuart A Henrys2, Fabio Caratori Tontini3, Dan Bassett1, Laura M Wallace1, Philip Barnes4 and Erin Todd5, (1)GNS Science, Lower Hutt, New Zealand, (2)Earth Sciences New Zealand, Lower Hutt, New Zealand, (3)University of Genoa, Genoa, Italy, (4)NIWA National Institute of Water and Atmospheric Research, Wellington, New Zealand, (5)University of Otago, Dunedin, New Zealand
Validating a full-waveform inversion velocity model at the north Hikurangi subduction margin using IODP drilling data (412347)
Rebecca E Bell, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, Melissa Gray, Imperial College London, London, SW7, United Kingdom, Joanna V Morgan, Imperial College London, London, United Kingdom, Stuart A Henrys, Earth Sciences New Zealand, Lower Hutt, New Zealand, Daniel H N Barker, GNS Science, Lower Hutt, New Zealand, Nathan L Bangs, Univ Texas, Institute for Geophysics, Austin, United States, Philip Barnes, National Institute of Water & Atmospheric Research, Wellington, New Zealand, Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States, Demian M Saffer, Pennsylvania State University, University Park, United States, Katerina E Petronotis, Texas A&M University, International Ocean Discovery Program, College Station, United States and Scientific Team of IODP Drilling Expedition 375 and Scientific Team of IODP Drilling Expedition 372
Structure, physical characteristics and fault slip behaviors along the southern Hikurangi subduction zone derived from seismic full waveform imaging. (449846)
Adrien F Arnulf, Institute for Geophysics, Austin, United States, James Biemiller, University of Texas, Austin, United States, Dan Bassett, GNS Science, Lower Hutt, New Zealand, Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States, Stuart A Henrys, Earth Sciences New Zealand, Lower Hutt, New Zealand, Gareth James Crutchley, GNS Science-Institute of Geological and Nuclear Sciences Ltd, Lower Hutt, New Zealand, Ingo Andreas Pecher, University of Auckland, Auckland, New Zealand and Luc Lavier, University of Texas at Austin, Earth and Planetary Sciences, Austin, United States
Numerical modeling of dynamically triggered shallow slow slip events in New Zealand by the 2016 M w 7.8 Kaikoura earthquake (410198)
Meng (Matt) Wei, University of Rhode Island, Graduate School of Oceanography, Narragansett, United States, Yoshihiro Kaneko, Kyoto University, Department of Geophysics, Kyoto, Japan, Pengcheng Shi, University of Rhode Island, Narragansett, RI, United States and YaJing Liu, McGill University, Earth and Planetary Sciences, Montreal, QC, Canada
Frictional behavior of incoming sediment in the Hikurangi subduction zone at in-situ PT conditions (392694)
Hannah S Rabinowitz, Brown University, Providence, RI, United States, Heather M Savage, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, United States, Srisharan Shreedharan, Utah State University, Department of Water, Earth, and Environmental Sciences, Logan, United States, Matt Ikari, University of Bremen, MARUM – Center for Marine Environmental Sciences, Bremen, Germany, Francesca Meneghini, University of Pisa, Pisa, Italy, Yoshihiro Ito, Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan, Hiroko Kitajima, Texas A&M University, Center for Tectonophysics and the Department of Geology & Geophysics, College Station, United States, Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States, Demian M Saffer, Pennsylvania State University, University Park, United States, Katerina E Petronotis, Texas A&M University, International Ocean Discovery Program, College Station, United States and Expedition 372/375 Scientists
Seafloor Overthrusting Creates Ductilely Deformed Fault Rocks in Marine Sediments at the Hikurangi Margin: Implications for Fault Zone Evolution and Mechanics at IODP Site U1518 (438908)
Julia Morgan1, Ake Fagereng2, Heather M Savage3, Maomao Wang4, Francesca Meneghini5, Philip Barnes6, Rebecca E Bell7, Hiroko Kitajima8, Brandon Dugan9, Laura M Wallace10, Demian M Saffer11, Ingo Andreas Pecher12, Katerina E Petronotis13, Leah LeVay14, IODP Expedition 372 Scientists15 and IODP Expedition 375 Scientists15, (1)Rice University, Houston, TX, United States, (2)Cardiff University, Department of Earth and Environmental Sciences, Cardiff, United Kingdom, (3)University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, United States, (4)Hohai University, Nanjing, China, (5)University of Pisa, Pisa, Italy, (6)National Institute of Water & Atmospheric Research, Wellington, New Zealand, (7)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (8)Texas A&M University, Center for Tectonophysics and the Department of Geology & Geophysics, College Station, United States, (9)Colorado School of Mines, Department of Geophysics, Golden, CO, United States, (10)University of Texas at Austin, Institute for Geophysics, Austin, United States, (11)Pennsylvania State University, University Park, United States, (12)University of Auckland, Auckland, New Zealand, (13)Texas A&M University, International Ocean Discovery Program, College Station, United States, (14)Texas A&M University, International Ocean Discovery Program, College Station, TX, United States, (15)Texas A&M University, College Station, TX, United States
Constraining the deformation history of the frontal wedge of Hikurangi Subduction Margin with analog modeling and bedding trends from borehole logging of IODP Expedition 372 (387871)
Hiroaki Koge, Atmosphere and Ocean Research Institute University of Tokyo, Tokyo, Japan, David D McNamara, GNS Science-Institute of Geological and Nuclear Sciences Ltd, Lower Hutt, New Zealand, Davide Gamboa, University of Aveiro, CESAM, Aveiro, Portugal, Hung-Yu Wu, Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, Gil Young Kim, Korea Institute of Geoscience and Mineral Resources (KIGAM), Marine Geology and Energy Division, Daejeon, South Korea, Sebastian Cardona, Colorado School of Mines, Geology and Geological Engineering, Golden, CO, United States, Uma Shanker, Banaras Hindu University, Geophysics, Varanasi, India, Philip Barnes, National Institute of Water & Atmospheric Research, Wellington, New Zealand, Ingo Andreas Pecher, University of Auckland, Auckland, New Zealand, Leah J LeVay, Integrated Ocean Drilling Program, College Station, United States, Demian M Saffer, Pennsylvania State University, University Park, United States, Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States, Katerina E Petronotis, Texas A&M University, International Ocean Discovery Program, College Station, United States, Atsushi Noda, AIST --National Institute of Advanced Industrial Science and Technology, Geological Survey of Japan, Tsukuba, Japan, Julia Morgan, Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States, Juichiro Ashi, The University of Tokyo, Bunkyo-ku, Japan, Asuka Yamaguchi, University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Japan, Yasuhiro Yamada, Kyushu University, Department of Earth Resources Engineering, Fukuoka, Japan, Yohei Hamada, JAMSTEC, Kochi Institute for Core Sample Research, Nankoku, Japan and Expedition 372 Scientists, Expedition 375 Scientists
Signatures of Brittle Deformation in a Shallow Fault in the Hikurangi Subduction Margin (407055)
Heather M Savage, Columbia University of New York, Palisades, NY, United States, Genevieve L Coffey, University of Otago, Dunedin, New Zealand, Srisharan Shreedharan, Utah State University, Department of Water, Earth, and Environmental Sciences, Logan, United States, Pratigya J Polissar, Lamont-Doherty Earth Observatory, Palisades, United States, Ake Fagereng, Cardiff University, Department of Earth and Environmental Sciences, Cardiff, United Kingdom, Francesca Meneghini, University of Pisa, Pisa, Italy, Julia Morgan, Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States, Maomao Wang, Hohai University, Nanjing, China, Yoshitaka Hashimoto, Kochi University, Kochi, Japan, Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States, Demian M Saffer, Pennsylvania State University, University Park, United States, Philip Barnes, National Institute of Water & Atmospheric Research, Wellington, New Zealand, Ingo Andreas Pecher, University of Auckland, Auckland, New Zealand, Katerina E Petronotis, Texas A&M University, International Ocean Discovery Program, College Station, United States, Leah LeVay, Texas A&M University, International Ocean Discovery Program, College Station, TX, United States and IODP Expedition 372/375 Scientists
Subduction-Related Strain in a Calcareous-Pelagic Shear Zone: Insights on Deformation at the Hikurangi Margin Plate Interface from the Input Sequence at Site U1520 and the Llanddwyn Island Shear Zone, Anglesey, U.K (390183)
Harold Robert Leah1, Ake Fagereng1, Francesca Meneghini2, Julia Morgan3, Heather M Savage4, Maomao Wang5, Demian M Saffer6, Laura M Wallace7, Katerina E Petronotis8 and IODP Expedition 372 and 375 Science Parties, (1)Cardiff University, Cardiff, CF24, United Kingdom, (2)University of Pisa, Pisa, Italy, (3)Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States, (4)University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, United States, (5)Hohai University, Nanjing, China, (6)Pennsylvania State University, University Park, United States, (7)GNS Science, Lower Hutt, New Zealand, (8)Texas A&M University, International Ocean Discovery Program, College Station, United States
Magnetic fabrics of deformed soft sediments at the deformation front of the Hikurangi subduction margin (406565)
Annika Greve, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, Toshiya Kanamatsu, Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics, Kanagawa, Japan, Ake Fagereng, Cardiff University, Department of Earth and Environmental Sciences, Cardiff, United Kingdom, Julia Morgan, Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States, Maomao Wang, Hohai University, Nanjing, China, Heather M Savage, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, United States, Myriam Annie Claire Kars, University of Plymouth, International Ocean Drilling Programme, Plymouth, UK, Xuesen Li, University of Bremen, Bremen, Germany, Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States, Demian M Saffer, Pennsylvania State University, University Park, United States, Katerina E Petronotis, Texas A&M University, International Ocean Discovery Program, College Station, United States and Expedition 375 and 372 Scientists
Compactive deformation in the incoming sedimentary section of the Hikurangi Subduction Margin, New Zealand: Constraints from seismic reflection data and IODP cores (409497)
Maomao Wang, Hohai University, Nanjing, China, Philip Barnes, National Institute of Water & Atmospheric Research, Wellington, New Zealand, Julia Morgan, Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States, Rebecca E Bell, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, Ake Fagereng, Cardiff University, Cardiff, CF24, United Kingdom, Heather M Savage, Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States, Demian M Saffer, Pennsylvania State University, University Park, United States, Laura M Wallace, GNS Science, Lower Hutt, New Zealand, Katerina E Petronotis, Texas A&M University, International Ocean Discovery Program, College Station, United States and Shipboard Scientists from IODP Expeditions 372 and 375
Lithostratigraphy of the Hikurangi Subduction Inputs: Results of Coring During IODP Expedition 375 (360548)
Michael Underwood, New Mexico Tech, Earth and Environmental Sciences, Socorro, NM, United States, Hannah S Rabinowitz, Brown University, Providence, RI, United States, Atsushi Noda, National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan, Francesca Meneghini, University of Pisa, Pisa, Italy, Steffen Kutterolf, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, Yoshitaka Hashimoto, Kochi University, Kochi, Japan, Christie Engelmann de Oliveira, Universidade do Vale do Rio dos Sinos, São Leopoldo, Brazil, Demian M Saffer, Pennsylvania State University, University Park, United States, Laura M Wallace, GNS Science, Lower Hutt, New Zealand, Philip Barnes, National Institute of Water & Atmospheric Research, Wellington, New Zealand, Ingo Andreas Pecher, University of Auckland, Auckland, New Zealand, Katerina E Petronotis, Texas A&M University, International Ocean Discovery Program, College Station, United States, Leah LeVay, Texas A&M University, International Ocean Discovery Program, College Station, TX, United States and Expedition 375 Scientists, Expedition 372 Scientists
Lithification of Volcaniclastic Deposits in the Hikurangi Subduction Zone: Preliminary Characterization of Fluid Circulation in the Incoming Plate, and Volatiles Entering the Trench (353876)
Francesca Meneghini, University of Pisa, Pisa, Italy, Chiara Boschi, CNR Institute of Geosciences and Earth Resources, Pisa, Italy, Ake Fagereng, Cardiff University, Cardiff, CF24, United Kingdom, Julia Morgan, Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States, Michael Underwood, University of Missouri, Columbia, MO, United States, Yoshitaka Hashimoto, Kochi University, Kochi, Japan, Christie Engelmann de Oliveira, Universidade do Vale do Rio dos Sinos, São Leopoldo, Brazil, Steffen Kutterolf, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, Atsushi Noda, National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan, Hannah S Rabinowitz, Columbia University in the City of New York, New York, NY, United States, Heather M Savage, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, United States, Maomao Wang, Hohai University, Nanjing, China, Laura M Wallace, GNS Science, Lower Hutt, New Zealand, Demian M Saffer, Pennsylvania State University, University Park, United States, Philip Barnes, National Institute of Water & Atmospheric Research, Wellington, New Zealand, Ingo Andreas Pecher, University of Auckland, Auckland, New Zealand, Katerina E Petronotis, Texas A&M University, International Ocean Discovery Program, College Station, United States, Leah LeVay, Texas A&M University, International Ocean Discovery Program, College Station, TX, United States and Scientific Team of IODP Exp 375 and 372
Lithology and cement controls on the evolution of compressional wave velocity and porosity in input materials at northern Hikurangi and other subduction zones (411318)
Tamara Jeppson1, Hiroko Kitajima2, Matt Ikari3, Hikweon Lee4, Yoshihiro Ito5, Robert N Harris6, Srisharan Shreedharan7, Min Luo8, Pierre R Malie9, Andre Huepers3, Evan A Solomon10, Michael Underwood11, Steffen Kutterolf12, Francesca Meneghini13, Yoshitaka Hashimoto14, Christie Engelmann de Oliveira15, Hannah Rabinowitz16, Atsushi Noda17, Patrick M Fulton18,19, Demian M Saffer20, Laura M Wallace21, Philip Barnes22, Ingo Andreas Pecher23, Katerina E Petronotis24, Leah LeVay25 and Exp. 372/375 Science Party, (1)Texas A&M University, Geology and Geophysics, College Station, United States, (2)Texas A&M University, Center for Tectonophysics and the Department of Geology & Geophysics, College Station, United States, (3)University of Bremen, MARUM – Center for Marine Environmental Sciences, Bremen, Germany, (4)KIGAM Korea Institute of Geoscience and Mineral Resources, Daejeon, Korea, Republic of (South), (5)Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan, (6)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (7)Utah State University, Department of Water, Earth, and Environmental Sciences, Logan, United States, (8)Shanghai Ocean University, College of Marine Sciences, Lingang, China, (9)Université Montpellier, Geosciences Montpellier Laboratory, Montpellier, France, (10)Univ Washington, Seattle, United States, (11)University of Missouri, Columbia, MO, United States, (12)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (13)University of Pisa, Pisa, Italy, (14)Kochi University, Kochi, Japan, (15)Universidade do Vale do Rio dos Sinos, São Leopoldo, Brazil, (16)Lamont-Doherty Earth Observatory, Palisades, United States, (17)National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan, (18)Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States, (19)Texas A&M University College Station, Center for Tectonophysics, College Station, United States, (20)Pennsylvania State University, University Park, United States, (21)GNS Science, Lower Hutt, New Zealand, (22)National Institute of Water & Atmospheric Research, Wellington, New Zealand, (23)University of Auckland, Auckland, New Zealand, (24)Texas A&M University, International Ocean Discovery Program, College Station, United States, (25)Texas A&M University, International Ocean Discovery Program, College Station, TX, United States
Revisiting the giant Ruatoria Debris Flow on the Hikurangi Margin, New Zealand: results from IODP Expeditions 372 and 375, Site U1520. (390360)
Davide Gamboa1, Philip Barnes2, Rebecca E Bell3, Gregory F Moore4, Joshu J Mountjoy5, Matteo Paganoni6, Michael B Clennell7, Ann Cook8, David D McNamara9, Michael Underwood10, Hannah Rabinowitz11, Atsushi Noda12, Francesca Meneghini13, Steffen Kutterolf14, Yoshitaka Hashimoto15, Christie Engelmann de Oliveira16, Ingo Andreas Pecher17, Laura M Wallace18, Demian M Saffer19, Leah LeVay20, Katerina E Petronotis21, IODP Expedition 372 Scientists22 and IODP Expedition 375 Scientists22, (1)British Geological Survey, Cardiff, United Kingdom, (2)National Institute of Water & Atmospheric Research, Wellington, New Zealand, (3)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (4)University of Hawaii at Manoa, Earth Sciences, Honolulu, United States, (5)Earth Sciences New Zealand, Wellington, New Zealand, (6)Shell Global Solutions International B.V., Den Hague, Netherlands, (7)CSIRO Earth Science Resource Engineering, Perth, WA, Australia, (8)Ohio State University Main Campus, Columbus, OH, United States, (9)GNS Science-Institute of Geological and Nuclear Sciences Ltd, Lower Hutt, New Zealand, (10)University of Missouri, Columbia, MO, United States, (11)Lamont-Doherty Earth Observatory, Palisades, United States, (12)National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan, (13)University of Pisa, Pisa, Italy, (14)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (15)Kochi University, Kochi, Japan, (16)Universidade do Vale do Rio dos Sinos, São Leopoldo, Brazil, (17)University of Auckland, Auckland, New Zealand, (18)University of Texas at Austin, Institute for Geophysics, Austin, United States, (19)Pennsylvania State University, University Park, United States, (20)Texas A&M University, International Ocean Discovery Program, College Station, TX, United States, (21)Texas A&M University, International Ocean Discovery Program, College Station, United States, (22)Texas A&M University, College Station, TX, United States
High-resolution seafloor imaging of the diverse North Hikurangi Margin, including the creeping and catastrophic North Tuaheni Landslide (419919)
Joel Edwards1, Nathan L Bangs2, Shuoshuo Han3, Daniel H N Barker4, Tobin Harold5, Reston J Tim6, Ryuta Arai7, Stephen Michael Ball8, Melissa Gray9, Harold Robert Leah10, Hannah Tilley11, Jared Kluesner12 and Eli A Silver1, (1)University of California Santa Cruz, Santa Cruz, CA, United States, (2)Univ Texas, Institute for Geophysics, Austin, United States, (3)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (4)GNS Science, Lower Hutt, New Zealand, (5)University of Wisconsin Madison, Madison, United States, (6)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, United Kingdom, (7)University of Hawaii at Manoa, Honolulu, United States, (8)University of Leicester, Chemistry, Leicester, United Kingdom, (9)Imperial College London, London, SW7, United Kingdom, (10)Cardiff University, Cardiff, CF24, United Kingdom, (11)University of Hawaii at Manoa, Earth Sciences, Honolulu, HI, United States, (12)U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, United States
Impact of sea-level and bottom water temperature change on methane-hydrate stability: IODP Site U1517, Hikurangi Margin (392616)
Elizabeth Screaton1, Marta E Torres2, Brandon Dugan3, Katja U Heeschen4, Joshu J Mountjoy5, Satoko Owari6, Paula S Rose7, Ingo Andreas Pecher8, Philip M. Barnes9, Leah LeVay10, IODP Expedition 372 Scientists11 and IODP Expedition 375 Scientists11, (1)Univ of FL-Geological Sciences, Gainesville, FL, United States, (2)Oregon State University, Corvallis, OR, United States, (3)Colorado School of Mines, Hydrologic Science & Engineering, Golden, CO, United States, (4)Geozentrum Hannover - BGR, Telegrafenberg, Germany, (5)Earth Sciences New Zealand, Wellington, New Zealand, (6)Chiba University, Chiba, Japan, (7)Texas A & M University Corpus Christi, Department of Physical and Environmental Sciences, Corpus Christi, TX, United States, (8)University of Auckland, Auckland, New Zealand, (9)National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand, (10)Texas A&M University, International Ocean Discovery Program, College Station, TX, United States, (11)Texas A&M University, College Station, TX, United States
Formation Pore Pressure through the Tuaheni Landslide Complex and the Gas Hydrate Stability Zone at IODP Expedition 372 Site U1517, Hikurangi Margin, New Zealand (391775)
Brandon Dugan1, Ingo Andreas Pecher2, Michael Nole3, Joshu J Mountjoy4, Philip M. Barnes5, Leah LeVay6, IODP Expedition 372 Scientists7 and IODP Expedition 375 Scientists7, (1)Colorado School of Mines, Hydrologic Science & Engineering, Golden, CO, United States, (2)University of Auckland, Auckland, New Zealand, (3)Sandia National Labs, Albuquerque, NM, United States, (4)Earth Sciences New Zealand, Wellington, New Zealand, (5)National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand, (6)Texas A&M University, International Ocean Discovery Program, College Station, TX, United States, (7)Texas A&M University, College Station, TX, United States

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