JpGU Meeting 2019
Session outline| Solid Earth Sciences (S) | ||
|---|---|---|
| Session Sub-category | Complex & General(CG) | |
| Session ID | S-CG49 | |
| Title | Hard-Rock Drilling Science: From Continental to Deep Sea Drilling, and Oman Project | |
| Short Title | Hard-Rock Drilling Science | |
| Main Convener | Name | Katsuyoshi Michibayashi |
| Affiliation | Department of Earth and Planetary Sciences, Nagoya University | |
| Co-Convener 1 | Name | Eiichi TAKAZAWA |
| Affiliation | Department of Geology, Faculty of Science, Niigata University | |
| Co-Convener 2 | Name | Norikatsu Akizawa |
| Affiliation | Department of Ocean Floor Geoscience, Atmosphere and Ocean Research Institute, The University of Tokyo | |
| Session Language | E | |
| Scope | The Oman Drilling Project (OmDP) has completed to drill numerous hard-rock cores within ancient oceanic lithosphere and the underlying subduction zone of the Samail ophiolite in Oman, with support from ICDP, IODP, Japan Society for the Promotion of Science, the Sloan Foundation's Deep Carbon Observatory, US, and European research agencies. Moreover, a number of IODP expeditions have focused on hard-rock drilling over the last several years including Expedition 352 in 2014, which drilled the volcanic sequence associated with subduction initiation in the Bonin fore-arc, Expedition 357, which drilled the Lost City hydrothermal field, Expedition 360, which drilled the lithosphere associated with ultraslow-spreading at the Southwest Indian Ridge in 2016, and Expedition 366, which drilled the serpentinite seamounts in the Mariana fore-arc. In this session, we invite presentations on the scientific results of hard-rock drilling at these and other sites. We also invite related presentations on oceanic lithosphere, island arc formation, and any other significant issue that could be addressed by future hard-rock drilling. This includes marine studies of oceanic lithosphere and on-land geological investigations of ophiolites, accreted arcs, and subduction complexes. The session is intended to be interdisciplinary, including the fields of geophysics, geochemistry, petrology, engineering, and biology. | |
| Presentation Format | Oral and Poster presentation | |
| Invited Authors | Peter B Kelemen (Columbia University of New York) Damon A H Teagle (Ocean & Earth Science, National Oceanography Centre Southampton, University of Southampton, SO14-3ZH, Southampton, UK) Atsushi Okamoto (Graduate School of Environmental Studies) | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 27 PM2 | ||||
| 15:30 - 15:45 | SCG49-01 | Geochemical and Geochronological Constraints on the Origin and Emplacement of the East Taiwan Ophiolite: Implication for Subduction Initiation of the South China Sea. | Chiou-ting Lin | |
| 15:45 - 16:05 | SCG49-02 | Towards a complete profile of hydrothermal alteration in the lower oceanic crust and uppermost mantle; Insights from the Oman Drilling Project and ChikyuOman2017 and 2018 | Damon A H Teagle | |
| 16:05 - 16:25 | SCG49-03 | Peridotite alteration in OmanDP cores | Peter B Kelemen | |
| 16:25 - 16:40 | SCG49-04 | Low-salinity aqueous fluid inclusions in dolomite veins of a listvenite of Oman Drilling Project Phase 1 | Tatsuhiko Kawamoto | |
| 16:40 - 17:00 | SCG49-05 | Hydration and development of fracture network within oceanic lower crust: an evidence from CM1A of Oman Drilling | Atsushi Okamoto | |
| Oral Presentation May 28 AM1 | ||||
| 09:00 - 09:15 | SCG49-06 | Melt transport and compositional heterogeneity of the mantle: a case study of peridotite, dunite, and wehrlite from Atlantis Massif | Norikatsu Akizawa | |
| 09:15 - 09:30 | SCG49-07 | Lower crustal accretion processes revealed from the study of gabbroic cores in Holes GT1A and GT2A, the ICDP Oman Drilling Project | Sayantani Chatterjee | |
| 09:30 - 09:45 | SCG49-08 | Petrology of Oman listvenite : Implications for carbon cycle in the subduction zone | Toma Takahashi | |
| 09:45 - 10:00 | SCG49-09 | PGE and Os isotope variation in the gabbros and peridotites from the Oman DP drilling cores in the Samail ophiolite, Oman | Ryoko Senda | |
| 10:00 - 10:15 | SCG49-10 | Overview of drilling of crust-mantle boundary at CM1&2 sites of Wadi Tayin massif of Oman ophiolite: the ICDP Oman Drilling Project | Eiichi TAKAZAWA | |
| 10:15 - 10:30 | SCG49-11 | Petrological observation of core samples drilled from a mantle section of the Oman ophiolite: A preliminary report of the Oman Drilling Project Phase 2 | Yuji Ichiyama | |
| Oral Presentation May 28 AM2 | ||||
| 10:45 - 11:00 | SCG49-12 | Structural analyses of ultramafic rocks used by X-ray CT core imaging (Oman Drilling Project Phase 2, D/V CHIKYU) | Katsuyoshi Michibayashi | |
| 11:00 - 11:15 | SCG49-13 | Petrophysical characteristics of serpentinized peridotites of Hole BA1B, BA3A and BA4A | Kakihata Yuki | |
| 11:15 - 11:30 | SCG49-14 | Physical properties of the Moho TZ: Implications from ICDP Oman Drilling Project Phase I & II on-board measurements | Natsue Abe | |
| 11:30 - 11:45 | SCG49-15 | Seismic anisotropy under high pressure conditions of harzburgite collected from Oman Drilling Project Phase II | Kohei Hatakeyama | |
| 11:45 - 12:00 | SCG49-16 | Understanding of the mode of seafloor spreading and the architecture of upper oceanic crust by oceanfloor drilling at off-Hawaii MoHole candidate site | Susumu Umino | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 28 PM2 | |||
| SCG49-P01 | Permeability profile in the Oman Drilling Project inferred from resistivity measurements | Ikuo Katayama | |
| SCG49-P02 | Relationship between alteration intensity and elastic wave velocity of gabbroic rocks from ICDP Hole CM1A, Oman Drilling Project Phase II | Kosuke Kimura | |
| SCG49-P03 | Physical property of the fossilized crust-mantle transition zone from ICDP Oman Drilling Project Hole CM1A and CM2B measured onboard D/V Chikyu | Keishi Okazaki | |
| SCG49-P04 | Microstructures of lower crust gabbros from the Oman Ophiolite: Analyses of the drilled cores of the Oman Drilling Project | Koki Iida | |
| SCG49-P05 | Olivine fabric and mineral compositions in the Maqsad area of the Samail massif, the southern Oman ophiolite | Kaho Takahashi | |
| SCG49-P06 | The evolution of melt inclusions in podiform chromitite in Oman | Yuan YAO | |
| SCG49-P07 | Melt/fluid - rock reaction inferred from the Wadi Tayin mantle section in the southern Oman ophiolite | Keisuke ISHII | |
| SCG49-P08 | Numerical simulations for reaction-induced fracture formation of layered gabbro during hydration process | Kazuki Yoshida | |
| SCG49-P09 | X-ray CT images of oceanic lithologies obtained on Oman Drilling Project drillcores during ChikyuOman 2017 and 2018 | Katsuyoshi Michibayashi | |
| SCG49-P10 | Re-examination of the crystallization process of clinopyroxene oikocrysts in layered gabbros at Hess Deep Rift, EPR | Akane Yasui | |
| SCG49-P11 | Structural petrology of peridotites from the Kalaymyo ophiolite | Kouhei Asano | |
| SCG49-P12 | Reevaluation of the origin of mafic layers in the Upper Zone of the Horoman Peridotite | Yumeto KOGURE | |
| SCG49-P13 | A structural and petrological study of "Shibukawa ultramafic body" in the Sanbagawa belt, western Shizuoka, Japan | Hikaru Shioya | |