広島大学大学院理学研究科　地球惑星システム学専攻

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Seminar Info. (2022 April ー 2023 March)

Special Seminar by guests

                                                                               2022
Speaker Tadao Nishiyama (Kumamoto University)
Title Ultra-high pressure pseudotachylite and nanodiamond
Date＆Time April 27, 2022. 13:00-14:00
Location E203 + Online (Zoom)
Speaker Arshad Ali (Sultan Qaboos University)
Title Exploring Stable Isotope Signatures in Planetary Systems; Methodology and Mass Spectrometry Triple O-Si and Clumped Isotope Science
Date＆Time May 31, 2022. 10:30-
Location B606 + Online (Zoom)
Speaker Toshihiko Shimamoto (Shimamoto Laboratory)
Title TBA
Date＆Time July 4, 2022. 15:30-
Location E209 + Online (Teams)
Speaker Hiroko Kitajima (Texas A&M University)
Title Triaxial extension deformation tests on Berea sandstone - Effects of pore fluid pressure on extension and extension-shear mix-mode fractures
Date＆Time July 4, 2022. 16:20-
Location E209 + Online (Teams)
Speaker Ritsu Kuwatani (JAMSTEC)
Title Data-driven approach to solid-earth science
Date＆Time July 26, 2022. 16:20-
Location E203 + Online (Teams)
Speaker Eiichi Takasawa (Niigata University)
Title Flux melting of mantle peridotites in the Oman ophiolite
Date＆Time August 30, 2022. 16:20-
Location E104
Speaker Kazunori Yoshizawa (Hokkaido University)
Title Seismic waveform analyses in global seismology: from mantle structure to volcanic eruptions
Date＆Time September 7, 2022. 14:45-16:00
Location E104 + Online (Zoom)
Speaker Atsushi Kamei (Shimane University)
Title TBA
Date＆Time October 14, 2022. 17:00-
Location B305 + Online (Teams)
Speaker A.D. Rosa (European Synchrotron Radiation Facility (ESRF))
Title Physico-chemical properties of noble gases at extreme conditions
Date＆Time October 20, 2022. 16:30-18:00
Location E002 + Online (Zoom)

Seminar in Integrated Fields of Earth and Planetary Sciences
(Yugo Seminar):
Fri. 16:20 - 17:50 @ B603 (1st Term), B305 (2nd Term), Teams
■ April 22 ■
Junya Okazaki Mechanism of seismic fault generation involving in pseudotachylyte formation in ductile regime: examples from Sarwar-Junia Fault Zone, India
Yuya Akamatsu Experimental and theoretical constraints on the effect of cracks on physical properties of oceanic crust
■ May 6 ■
Kei Esaki Direct dating of folding events by 40Ar 39Ar analysis of synkinematic muscovite from flexural-slip planes
Ken-ichiro Yokota Analysis of seismic activities in the Nankai subduction zone
■ May 13 ■
Nagihira Nishii Morphology and size distributions of HCN polymers in a simulated environment of icy celestial bodies
Hajime Taniuchi TBA
■ May 20 ■
Yuta Sumitani Investigation of the collisional history of asteroid 4 Vesta based on U-Pb chronology of HED meteorite
Toru Nakahashi Consideration of the evolutionary process of Ryugu based on the elucidation of shock metamorphism of CI carbonaceous chondrites
■ May 27 ■
Kazuya Hayashi A study on seismic hazard analyses using observed seismic records
   
■ June 10 ■
Kazumasa Tanimoto Simultaneous measurements of resistivity, seismic velocity and porosity of mafic samples collected from the Oman ophiolite during hydrostatic compressional experiments
Dyuti Prakash SARKAR Lithology-dependent deformation mechanisms in the shallow-crustal faults of Himalayan Frontal Fold-thrust belt
■ June 17 ■
Yuto Kisaki Determination of source parameters of shallow very low-frequency earthquakes in the Hyuga-nada region
Jun-ichi Ando Fault formation mechanism in brittle-plastic transition regime
■ June 24 ■
Rei Torigoe Effects of temperature, iron and water on the post-spinel phase transition
Bidisha DEY Deciphering human migration patterns through isotope geochemistry
■ July 1 ■
Yusuke Egi Melting experiment of hydrous mantle under mantle transition zone condition
Yasushi Fukazawa X-ray and gamma-ray probing of high-energy phenomena and material in the universe
■ July 8 ■
Yujiro Sasaki Origins of spherulites observed in reefal microbial crusts in Kumejima, Okinawa
Keishi Okazaki Challenge to understand the rheology and the material cycle across the entire solid Earth
■ July 15 ■
Kento Ohnishi In-situ nitrogen chemical speciation analysis of shergottite meteorites for elucidation of the surface environmental history on Mars
Tushar Mouli CHAKRABORTI Unlocking the petrogenetic histories of the Sub-Continental Lithospheric Mantle (SCLM) xenoliths of Kutch, NW Deccan Traps, India: Towards a working model
■ July 22 ■
Ai Kurokawa In-situ nitrogen chemical speciation analysis in Martian analog sample for elucidation of the Martian surface environment
Mizuho Koike  Importance and expected outcomes of the Phobos sample analysis by Martian Moons eXploration (MMX)
■ July 29 ■
   
   
■ October 7 ■
Tadashi Yokoyama Capillary imbibition of water and trapping of air inside rocks
   
■ October 14 ■
Nagihira Nishii Morphology and size distributions of HCN polymers in a simulated environment of icy celestial bodies
Atsushi Kamei TBA
■ October 21 ■
Yuta Sumitani Investigation of the collisional history of asteroid 4 Vesta based on U-Pb chronology of basaltic eucrite (NWA 13166) 
Ikuo Katayama Tipping point of water and carbon cycles in the Earth’s interior
■ October 28 ■
Ai Kurokawa In-situ nitrogen chemical speciation analysis of Martian analog: elucidation of the Martian surface environment
Eranga Jayawickrama Elastic properties of thermally treated diabase and peridotite: Implications towards the elastic properties of oceanic lithosphere
■ Nobember 4 ■
CHATTERJEE M. Sadhana
(Jadavpur Univ., India)		 Syn-tectonic granite emplacement in a transpression shear zone: Insights from Phulad Shear Zone, Rajasthan, India
Yuki Morono
(JAMSTEC Kochi)		 Exploring the life on fringe: investigation of hyper-low energy, subseafloor biosphere
■ November 11 ■
Kazumasa Tanimoto Simultaneous measurements of resistivity, seismic velocity and porosity of mafic samples collected from the Oman ophiolite during hydrostatic compressional experiments
Tomoeki Nakakuki Some remarks on the water transport by mantle convection
■ November 18 ■
Yuto Kisaki Determination of source parameters of shallow very low-frequency earthquakes in the Hyuga-nada region
Makio Ohkawa Physicochemical properties and formation process of maghemite
■ November 25 ■
Rei Torigoe Effects of iron and water on the post-spinel phase transition
Masaaki Miyahara Evidence for shock metamorphism in chondrites
■ December 2 ■
Yujiro Sasaki Origins of spherulites observed in reefal microbial crusts in Kumejima, Okinawa
Takaaki Kawazoe High-Pressure Synthesis of CaCo3Ti4O12 Quadruple Perovskite
■ December 9 ■
Yusuke Egi Melting experiment of hydrous mantle under mantle transition zone condition
Hikaru Yabuta Macromolecular organic matter in C-type asteroid Ryugu
■ December 16 ■
Kento Ohnishi In-situ nitrogen chemical speciation analysis of Martian meteorites for elucidation of the surface environmental history on Mars
Fumito Shiraishi Evaluate the generality of peloid formation process by coccid cyanobacteria
■ December 23 ■
Ken-ichiro Yokota Analysis of seismic activities in the Nankai subduction zone
Kaushik DAS What can survive at the deepest part of the ultra-hot orogen and what can they record??
■ January 6 ■
Toru Nakahashi The estimation of shock metamorphism in asteroid Ryugu based on the shock recovery experiments of CI chondrite
Naoki Suda On T-waves Observed in Japan Generated by Teleseismic Large Earthquakes
■ January 20 ■
Kazuya Hayashi A study on seismic hazard analyses using observed seismic records
Masako Yoshikawa Sr isotopic ratios of the antigolite veins in the harzburgites of the crust-mantle transition zone from Oman ophiolte
■ January 27 ■
MUNUSAMY A. SWARNAA Deformation mechanism of antigorite serpentinite
Toru Inoue Importance of Al substitution in deep Earth minerals and the relationship to deep Earth water
■  ■
   
   
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