JpGU Meeting 2018
Session outline| Solid Earth Sciences(S) | ||
|---|---|---|
| Session Sub-category | Complex & General | |
| Session ID | S-CG61 | |
| Title | Ocean Floor Geoscience | |
| Short Title | Ocean Floor Geoscience | |
| Main Convener | Name | Kyoko Okino |
| Affiliation | Atmosphere and Ocean Research Institute, The University of Tokyo | |
| Session Language | JJ | |
| Scope | Most of Earth's volcanism and much of its tectonic activity occur on and beneath the seafloor. Various phenomena on the seafloor are closely linked to plate tectonics, Earth structure and dynamics, and also related to Earth's environments through the hydrosphere and atmosphere. Seafloor rocks and sediments record Earth's evolution and heat and material fluxes on the Earth. Ocean Floor Geoscience session covers a broad range of research on seafloor such as mid-ocean ridge process, subduction dynamics, arc magmatism, hot spot and LIPs, crustal movement and structure etc. Every field of researches and every approaches are welcomed. The session aims to encourage discussion among scientists from different study fields and to integrate our understanding of ocean floor. The session is co-dhaired by K. Tadokoro (Nagoya Univ.), O. Ishizuka (AIST), T. Toki (Univ. Ryukyu), and N. Takahashi (JAMSTEC). | |
| Presentation Format | Oral and Poster presentation | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 23 PM1 | ||||
| 13:45 - 14:00 | SCG61-01 | The enigmatic tectonics of the Jurassic Pacific plate | Masao Nakanishi | Abstract |
| 14:00 - 14:15 | SCG61-02 | Missing carbonate and petit-spot silicate liquid immiscibility | Yuki Sato | Abstract |
| 14:15 - 14:30 | SCG61-03 | The progress of researches on REY-rich mud — A general overview — | Yasuhiro Kato | Abstract |
| 14:30 - 14:45 | SCG61-04 | Geochemistry of REY-rich mud in the basins southeastern off Minamitorishima Island | Koichiro Fujinaga | Abstract |
| 14:45 - 15:00 | SCG61-05 | Origin of deep-sea sediments within the Minamitorishima EEZ based on downhole variation of bulk chemical composition and isotopic ratios | Erika Tanaka | Abstract |
| 15:00 - 15:15 | SCG61-06 | Origin of common chemostratigraphy of pelagic clay in the North Pacific Ocean: age constraints from ichthyolith stratigraphy | Kazuhide Mimura | Abstract |
| Oral Presentation May 23 PM2 | ||||
| 15:30 - 15:45 | SCG61-07 | Characteristics of submarine volcanic activity revealed by the dense magnetic and gravity surveys off Kumejima Island in the Okinawa Trough | Kazuya Kitada | Abstract |
| 15:45 - 16:00 | SCG61-08 | Magnetic survey using ROV in the Hakurei site in Izena Hole, Okinawa Trough | Chie Honsho | Abstract |
| 16:00 - 16:15 | SCG61-09 | Multi-stage Seismic Survey for Seafloor Massive Sulphide (SMS) exploration | Eiichi Asakawa | Abstract |
| 16:15 - 16:30 | SCG61-10 | A correlation between logging and drilled cores at Izena Hole: CK16-05 D/V Chikyu drilling | Hidenori Kumagai | Abstract |
| 16:30 - 16:45 | SCG61-11 | Pb isotope analysis of galena from hydrothermal deposits in the mid-Okinawa Trough using Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry | Shuhei Totsuka | Abstract |
| 16:45 - 17:00 | SCG61-12 | Seafloor massive sulfide: Rock Physics Modeling of electrical conductivity characteristics including chemical compositions | Yusuke Ohta | Abstract |
| Oral Presentation May 24 AM1 | ||||
| 09:00 - 09:15 | SCG61-13 | Seafloor spreading history of the Cosmonauts Sea, off East Antarctica | Tomoko Hanyu | Abstract |
| 09:15 - 09:30 | SCG61-14 | Possible Evolution of Volcanic Activity of a subducting spreading ridge at the Chile Triple Junction based on geomagnetic survey data | Takeshi Matsumoto | Abstract |
| 09:30 - 09:45 | SCG61-15 | A hypothesis to explain asymmetry seafloor spreading in back-arc basins: Evidences from the Southern Mariana back-arc basin and Numerical modelling | Nobukazu Seama | Abstract |
| 09:45 - 10:00 | SCG61-16 | Magnetization of oceanic lithosphere: Rock magnetism for characterization of submarine volcanism in the Okinawa Trough | Masakazu Fujii | Abstract |
| 10:00 - 10:15 | SCG61-17 | Structural development in mantle associated with hydration during transform faulting | Kakihata Yuki | Abstract |
| 10:15 - 10:30 | SCG61-18 | Does the depth profile of chemical properties in Ogasawara(Bonin)-Mariana trench peridotites indicate a vertical profile of mantle? | Katsuyoshi Michibayashi | Abstract |
| Oral Presentation May 24 AM2 | ||||
| 10:45 - 11:00 | SCG61-19 | A new coring systm for ROV | Toshitsugu Yamazaki | Abstract |
| 11:00 - 11:15 | SCG61-20 | Accuracy verification of GNSS-A technique for monthly observation | Yusuke Yokota | Abstract |
| 11:15 - 11:30 | SCG61-21 | Interplate coupling distribution along the Nankai trough in southwest Japan estimated by the block motion model on the basis of onshore and seafloor geodetic observation data | Hiroshi Kimura | Abstract |
| 11:30 - 11:45 | SCG61-22 | Structural characteristics of the subducting Kyushu-Palau ridge around the Hyuga-nada region in Nankai Trough revealed by seismic reflection imaging | Mikiya Yamashita | Abstract |
| 11:45 - 12:00 | SCG61-23 | GNSS/Acoustic geodetic measurement at the southern end of Ryukyu Trench - Is great inter-plate earthquake being prepared there? - | Takeru Koumi | Abstract |
| 12:00 - 12:15 | SCG61-24 | Seafloor Crustal Deformation Measurement along the Nansei-shoto Trench, Japan | Keiichi Tadokoro | Abstract |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 23 Core Time | |||
| SCG61-P01 | Past continental shapes inferred from extrapolated GPS/GNSS data | Sakura Handa | Abstract |
| SCG61-P02 | Multichannel seismic reflection imaging off western Hokkaido, Japan Sea, using the R/V Kaimei | Tetsuo No | Abstract |
| SCG61-P03 | Re-mesasurement of the basement of the Shikoku Basin recovered by DSDP Leg 58 Sites 442~444 and ODP Leg 131 Site 808, and the characteristics of data. | Satoru Haraguchi | Abstract |
| SCG61-P04 | Sedimentary features around the fujikawa submarine fan, northern part of Suruga-Bay | Izumi Sakamoto | Abstract |
| SCG61-P05 | Geological features around the Senoumi-bank, Suruga-bay, Japan. | Izumi Sakamoto | Abstract |
| SCG61-P06 | Active tectonics of Muroto-off Ashizuri uplifted ridges, southwest Japan | Juichiro Ashi | Abstract |
| SCG61-P07 | Bathymetric, Sub-surface, and Gravity Survey off the Sada-misaki Peninsula | Toshiya Fujiwara | Abstract |
| SCG61-P08 | Precipitation environment of iron hydroxide in Nagahama Bay in Satsuma Iwo-jima | Naoya Sakamoto | Abstract |
| SCG61-P09 | Distribution and characteristics of the sedimentary basins under the slope between the East China Sea shelf and the northern Okinawa Trough | Chiaki Okada | Abstract |
| SCG61-P10 | Tectonics of volcanic and hydrothermal area, north/west of Kumejima Island: Preliminary results of KS-17-14 cruise | Kyoko Okino | Abstract |
| SCG61-P11 | Geological structure of offshore southward Ishigaki-jima Island estimated from seismic reflection survey | Ayanori Misawa | Abstract |
| SCG61-P12 | Magnetic anomaly lineations of the Jurassic Pacific Plate | Reiko Kakurai | Abstract |
| SCG61-P13 | Acoustic characterization of REY-rich mud in the Minamitorishima EEZ using high-resolution sub-bottom profiler data | Kenji Matsumoto | Abstract |
| SCG61-P14 | Common chemostratigraphy based on bulk geochemistry of deep-sea sediment cores in the western North Pacific Ocean. | Katsushi Yamamoto | Abstract |
| SCG61-P15 | Characterization of nuclei of ferromanganese nodules in the Minamitorishima EEZ using X-ray CT | Ryo Shimomura | Abstract |
| SCG61-P16 | A simple determination of major- and trace-element composition for peridotite by ICP-MS: an application of acid-digested fused-glass bead | Norikatsu Akizawa | Abstract |
| SCG61-P17 | Plume observation in hydrothermal fields using multi-beam sonar | Chiharu Aoyama | Abstract |
| SCG61-P18 | Development of deep tow multi-channel streamer system with networking hydrophone units | Takahiko Inoue | Abstract |
| SCG61-P19 | Recent attempts of marine self-potential surveys for exploring hydrothermal ore deposits | Yoshifumi Kawada | Abstract |
| SCG61-P20 | Challenge of Unmanned Ocean Exploration Competition "Shell Ocean Discovery XPRIZE" by GEBCO-NF Alumni Team | MASANAO SUMIYOSHI | Abstract |