JpGU Meeting 2019
Session outline| Solid Earth Sciences (S) | ||
|---|---|---|
| Session Sub-category | Science of the Earth's Interior & Tectonophysics(IT) | |
| Session ID | S-IT21 | |
| Title | Interaction and Coevolution of the Core and Mantle in the Earth and Planets | |
| Short Title | Core-mantle coevolution | |
| Main Convener | Name | Kenji Kawai |
| Affiliation | Department of Earth and Planetary Science, School of Science, University of Tokyo | |
| Co-Convener 1 | Name | Tsuyoshi Iizuka |
| Affiliation | University of Tokyo | |
| Co-Convener 2 | Name | Kenji Ohta |
| Affiliation | Department of Earth and Planetary Sciences, Tokyo Institute of Technology | |
| Co-Convener 3 | Name | Taku Tsuchiya |
| Affiliation | Geodynamics Research Center, Ehime University | |
| Session Language | E | |
| Scope | Recent observational and experimental investigations have significantly advanced our understanding of the structure and constituent materials of the deep Earth. Yet, even fundamental properties intimately linked with formation and evolution of the planet, such as details of the chemical heterogeneity in the mantle and light elements dissolved in the core, remained unclear. Seismological evidence has suggested a vigorous convection in the lower mantle, whereas geochemistry has suggested the presence of stable regions there that hold ancient chemical signatures. The amounts of radioactive isotopes that act as heat sources and drive dynamic behaviors of the deep Earth are also still largely unknown. We provide an opportunity to exchange the achievements and ideas, and encourage persons who try to elucidate these unsolved issues of the core-mantle evolution using various methods, including high-pressure and high-temperature experiments, high-precision geochemical and paleomagnetic analyses, high-resolution geophysical observations, geo-neutrino observations, and large-scale numerical simulations. Papers stimulating an interdisciplinary collaboration relating to establishment of the Japan-SEDI community are also welcomed. | |
| Presentation Format | Oral and Poster presentation | |
| Invited Authors | Vincent Clesi (Laboratoire de Geologie de Lyon) Jessica C E Irving (Princeton University) Sebastian Ritterbex (GRC Ehime University) Alexander V Sobolev (ISTerre Institute of Earth Sciences) Zhongqing Wu (University of Science and Technology of China) Anselme F. E. Borgeaud (Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo) Hitoshi Gomi (Okayama University) Noriyoshi Tsujino (Institute for Planetary Materials, Okayama University) Kenta Ueki (Japan Agency for Marine-Earth Science and Technology) Riko Iizuka-Oku (Geochemical Research Center, Graduate School of Science, The University of Tokyo) | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 27 AM1 | ||||
| 09:00 - 09:15 | SIT21-01 | The role of stishovite as a deep nitrogen carrier indicated from high-pressure and high-temperature experiments | Ko Fukuyama | |
| 09:15 - 09:30 | SIT21-02 | 3-D P- and S-velocity structure of the D″ layer beneath Central America and the Caribbean using waveform inversion | Anselme F. E. Borgeaud | |
| 09:30 - 09:45 | SIT21-03 | Uniaxial deformation experiments of bridgmanite using D-111 type high pressure apparatus | Noriyoshi Tsujino | |
| 09:45 - 10:00 | SIT21-04 | Waveform inversion for 3D anisotropic structure in D″ beneath the Northern Pacific: Constraints on mineralogy and flow in the lowermost mantle | Yuki Suzuki | |
| 10:00 - 10:15 | SIT21-05 | Maximum water solubility of bridgmanite under the Earth's lower mantle conditions | Sho Kakizawa | |
| 10:15 - 10:30 | SIT21-06 | Origin and role of lost continents | Shigenori Maruyama | |
| Oral Presentation May 27 AM2 | ||||
| 10:45 - 11:00 | SIT21-07 | Thermal conductivity anomaly in spin-crossover ferropericlase under lower mantle conditions | Zhongqing Wu | |
| 11:00 - 11:15 | SIT21-08 | Discussion | Kenji Ohta | |
| 11:15 - 11:30 | SIT21-09 | Ab initio anharmonic lattice dynamics for Fe-bearing lower mantle minerals | Haruhiko Dekura | |
| 11:30 - 11:45 | SIT21-10 | Measurements of high pressure-temperature thermal conductivity of the Earth’s lower mantle minerals in a laser-heated diamond anvil cell | Kenji Ohta | |
| 11:45 - 12:00 | SIT21-11 | Is there evidence for a paleo-LLSVP beneath Eurasia?: Implications for the origin of the Siberian Traps | Tsubasa Ue | |
| 12:00 - 12:15 | SIT21-12 | Possible compositional region of Al-bearing anhydrous bridgmanite | Toru Inoue | |
| Oral Presentation May 27 PM1 | ||||
| 13:45 - 14:00 | SIT21-13 | Evolution of the Earth mantle and its possible interaction with core: view from olivine and its inclusions study | Alexander V Sobolev | |
| 14:00 - 14:15 | SIT21-14 | Discussion | Tsuyoshi Iizuka | |
| 14:15 - 14:30 | SIT21-15 | Ultralow-velocity zones possibly explained by light element-enriched iron compounds | Liang Yuan | |
| 14:30 - 14:45 | SIT21-16 | High-precision 142W/144W ratios of oceanic island basalts and Large Igneous Province basalts. | Katsuhiko Suzuki | |
| 14:45 - 15:00 | SIT21-17 | Some technological developments in high temperature generation using KMA and precise melting/phase relations of minerals and rocks under deep mantle conditions | Tetsuo Irifune | |
| 15:00 - 15:15 | SIT21-18 | Zr isotope constraints on early Earth differentiation | Tsuyoshi Iizuka | |
| Oral Presentation May 28 AM1 | ||||
| 09:00 - 09:15 | SIT21-19 | Seismological Explorations of Earth's Outer Core: Normal Mode and Body Wave Analyses | Jessica C E Irving | |
| 09:15 - 09:30 | SIT21-20 | Discussion | Kenji Kawai | |
| 09:30 - 09:45 | SIT21-21 | On the 1-D radial convective structure of the Earth’s core inferred from a coupled core-mantle evolution model | Takashi Nakagawa | |
| 09:45 - 10:00 | SIT21-22 | Structural and transport properties of liquid iron-light-element mixtures under outer core conditions | Satoshi Ohmura | |
| 10:00 - 10:15 | SIT21-23 | Development of New Technology for Geoneutrino Directional Measurement | Hiroko Watanabe | |
| 10:15 - 10:30 | SIT21-24 | Investigation of multi light elements in iron-silicate-water system using high pressure and temperature neutron experiments: Implications for the Earth's evolution | Riko Iizuka-Oku | |
| Oral Presentation May 28 AM2 | ||||
| 10:45 - 11:00 | SIT21-25 | Low hydrogen contents in the cores of terrestrial planets | Vincent Clesi | |
| 11:00 - 11:15 | SIT21-26 | Discussion | Taku Tsuchiya | |
| 11:15 - 11:30 | SIT21-27 | Fe2S: the most iron-rich Fe-S compound at pressures of the inner core | Shigehiko Tateno | |
| 11:30 - 11:45 | SIT21-28 | First-principles Investigation of Iron Diffusion Properties with Implications to Inner Core Plasticity | Sebastian Ritterbex | |
| 11:45 - 12:00 | SIT21-29 | Dependence of the dipole component dominancy on the Rayleigh number and inner core size in geodynamo simulations | Yuki Nishida | |
| 12:00 - 12:15 | SIT21-30 | Elasticity of Fe-Si Alloy | Taku Tsuchiya | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 27 PM2 | |||
| SIT21-P01 | Sample-scale compositional variation of the Inada granite, Ibaraki, Japan -toward the reduction of geoneutrino flux estimation errors from the Japanese crust- | Kenta Ueki | |
| SIT21-P02 | Towards a better estimation of the temperature distribution beneath the Japanese Islands | Akiko Tanaka | |
| SIT21-P03 | The estimation of the neutrino flux from the crust of the Japanese islands using the geochemical database | Satoru Haraguchi | |
| SIT21-P04 | Viscosity of potassium titanosilicate melt at high pressure | Akio Suzuki | |
| SIT21-P05 | Lattice thermal conductivity of wadsleyite and ringwoodite at the mantle transition zone pressures | seiji kimura | |
| SIT21-P06 | In-situ X-ray observations of the olivine-spinel transformation under shear deformation: preliminary results on the reaction-induced weakening | Tomoaki Kubo | |
| SIT21-P07 | Internally resistive heated diamond anvil cell experiments with metal encapsulated minerals | YAMAMOTO TOMONARI | |
| SIT21-P08 | Shear deformation on post-spinel | Daisuke Yamazaki | |
| SIT21-P09 | Lattice thermal conductivity of CaSiO3 perovskite at high pressures and high temperatures | Kotaro Onga | |
| SIT21-P10 | Polycrystalline diamond sintered from ultradispersed nanodiamonds | Masayuki Nishi | |
| SIT21-P11 | Thermal conductivity measurements on iron and MgO periclase at high pressure and high temperature similar to the Earth’s mid-lower mantle conditions | Akira Hasegawa | |
| SIT21-P12 | Azimuthal anisotropy in the lowermost mantle beneath Philippine from ScS-S times | Satoru Tanaka | |
| SIT21-P13 | Detailed 3-D S-velocity structure within D" at the western Pacific LLSVP margin: smaller scale plumes and paleoslabs | Yuki Suzuki | |
| SIT21-P14 | Possible interaction between the core and mantle inferred from a core surface flow model | Masaki Matsushima | |
| SIT21-P15 | Determination of the noble gas partition coefficients between metal-silicate melts under high-pressure and high-temperature conditions | Tomotaka Tanaka | |
| SIT21-P16 | Measurement of T-dependent electrical resistivity of solid and liquid Fe and Pt at fixed P | Innocent Ezenwa | |
| SIT21-P17 | Ancient, highly depleted mantle constrained by Re-Os isotope and highly-siderophile element compositions of French Polynesian xenoliths | Norikatsu Akizawa | |
| SIT21-P18 | First-principles prediction of hydrogen partitioning between the core and mantle | Atsuroh Ohba | |
| SIT21-P19 | Microvolume stable isotope measuremetns and its applicaiton for high-pressure high-temperature experimental run products | Madhusoodhan Satish-Kumar | |
| SIT21-P20 | Electrical resistivity of hcp Fe-Si alloys at high pressure and temperature | Hayato Inoue | |
| SIT21-P21 | Electrical resistivity and thermal conductivity of fcc Fe: Implications for the Mercury’s core | Hitoshi Gomi | |
| SIT21-P22 | Lateral heterogeneity in the lowermost outer core (F layer) of the Earth revealed by seismic analyses | Toshiki Ohtaki | |
| SIT21-P23 | Flows and light element distribution in the outer core associated with heterogeneous growth of the inner core of the Earth | Shin-ichi Takehiro | |
| SIT21-P24 | Sharpness of the hemispherical boundary in the inner core beneath the northern Pacific | Ryohei Iritani | |
| SIT21-P25 | Stable carbon isotope fractionation in Fe-C system from first principles | Haruhiko Dekura | |