


Atsushi Toramaru | Last modified date:2022.02.09 |

Professor /
Dynamics, Structure and Evolution of the Earth and Planets
Department of Earth and Planetary Sciences
Faculty of Sciences
Department of Earth and Planetary Sciences
Faculty of Sciences
Graduate School
Undergraduate School
Other Organization
Homepage
https://kyushu-u.pure.elsevier.com/en/persons/atsushi-toramaru
Reseacher Profiling Tool Kyushu University Pure
http://ganseki3.geo.kyushu-u.ac.jp/index.html
Hope page of Group of Petrology and Volcanology .
Academic Degree
Doctor of Science
Country of degree conferring institution (Overseas)
No
Field of Specialization
Volcanology, Physics of Magmatic Processes, Igneous Petrology, Sciences on Form
Total Priod of education and research career in the foreign country
02years08months
Outline Activities
1.Research
1-1.Study on the dynamics of igneous processes:Igneous processes are all processes concerning magmas sucha as the generation, segregation and migration processes of melts in the mantle, phenomena occuring in magma chambers, the magma intrusion into the crust, and the volcanic eruption. I study them from the view points of material science and physics; specially, the kinetics of crystallization and vesiculation (formation of bubbles in magmas) of magmas and the eruption mechanisms.
1-2.Study on the formation of igneous rock texture:Igneous rocks which are formed by the solidification of magmas, shows a wide variety of texture. "Texture" means the pattern characterized
by the geometrical interrelation among constituent minerals. I study the texture of igneous rocks from view points of the quantitative description of textures and the understandig of a fundamental process of crystallization during the magma solidification.
1-3.Study on the pattern formation: Interesting patters in natures are ubiquitous. Especially, I theoretically and experimentally study various patterns which are geologically interesting: the columnar joint formation by the solidification of magmas, the Liesegang ring phenomena as a kind of diffusion-reaction system, the layering formation by the flow of rocks or magmas.
2.Education
I contribute the education through the colaborating researches as mentioned above with students. Three undergraduate and two graduate classes, seminars, the field survey, laboratory experiments, and discussion.
3.Social activities
On the homepage, I make a propaganda of results of researches and the enlightenment.
1-1.Study on the dynamics of igneous processes:Igneous processes are all processes concerning magmas sucha as the generation, segregation and migration processes of melts in the mantle, phenomena occuring in magma chambers, the magma intrusion into the crust, and the volcanic eruption. I study them from the view points of material science and physics; specially, the kinetics of crystallization and vesiculation (formation of bubbles in magmas) of magmas and the eruption mechanisms.
1-2.Study on the formation of igneous rock texture:Igneous rocks which are formed by the solidification of magmas, shows a wide variety of texture. "Texture" means the pattern characterized
by the geometrical interrelation among constituent minerals. I study the texture of igneous rocks from view points of the quantitative description of textures and the understandig of a fundamental process of crystallization during the magma solidification.
1-3.Study on the pattern formation: Interesting patters in natures are ubiquitous. Especially, I theoretically and experimentally study various patterns which are geologically interesting: the columnar joint formation by the solidification of magmas, the Liesegang ring phenomena as a kind of diffusion-reaction system, the layering formation by the flow of rocks or magmas.
2.Education
I contribute the education through the colaborating researches as mentioned above with students. Three undergraduate and two graduate classes, seminars, the field survey, laboratory experiments, and discussion.
3.Social activities
On the homepage, I make a propaganda of results of researches and the enlightenment.
Research
Research Interests
- Study on the method of long-term prediction of large volcanic eruption by geology and material science
keyword : volcanic eruption Long-term prediction
2016.09~2026.09. - Study of columnar joint
keyword : columar joint
2000.03~2026.03. - An inverse method of CSD
keyword : volcanic eruption, eruption style,microlite, crystallization kinetics
2009.04~2026.04. - Study of factors controlling temporal change of eruption styles during volcanic eruption
keyword : volcanic eruption, eruption style, vesiculation of magma, structure of magma chamber
2009.04~2026.04. - Study on volcanic eruption using analog experiments
keyword : experimental geyser, analog experiment, short term behavior, long term behavior, volcanic tremor, eruption style
2010.04~2026.04. - Experimental and theoretical study of Liesegang ring
keyword : Liesegang ring, pattern transition, periodic structure, branching structure, DLA
1994.05~2026.05Experimental study of Liesegang ring. Using PbI2 precipitation system, I examine the precipitation patterns such as periodic pattern and branching structure, and the transtion between them, the influence of electric field on the pattern.. - Earth science and physics on the structure formed by geological flows.
keyword : deformation, flow, diffusion, streamline mixing, mantle convection, rhyolite, magma mixing
1998.05~2026.05Physics and Petrological study on the layering structure formed by the deformation of magmas or rocks.. - Kitchin experiments
keyword : Kitchin earth science
1996.05~2026.05Analogue experiments using material in kitchen.. - Pattern formation and texture of igneous rocks
keyword : magma, rock, pattern formation, crystallization, vesiculation, nonlinearity, nucleation, diffusion-reaction system
1996.05~2026.05Texture of igneous rocks: the physics of ingeous textures and the crystallization of magmas.. - Physics and earth science of magmatic processes
keyword : magma, kinetics, crystallization,vesiculation,volcanic eruption, two-phase flow
2000.04~2026.12Physics of magmatic processes: the study of the elemental prcoesses such as melting, crystallization, convection and vesiclutation included in magmatic processes from the generation of magmas at the mantle to the eruption on the surface ..
Books
Papers
Presentations
1. | Atsushi Toramaru,Shunsuke Yamashita , Method of CSD for long-term prediction of eruptions at Sakurajima volcano, Cities on Volcanoes 10, 2018.09, [URL]. |
2. | Toramaru A, Masotta M, Model of Bubble Coalescence in Initially Mono-Dispersed System and Experimental Observations, Goldschmidt Conference, 2016.06. |
3. | Atsushi Toramaru, Tsuyoshi Kichise, New model of crystallization kinetics and CSD: its applications to Shinmoedake 2011 eruptions, Goldschmidt conference 2015, 2015.08. |
4. | 佐野恭平, 寅丸 敦志, 和田恵治, Textural analysis of obsidian lava flow in Shirataki, Northern Hokkaido, Japan, IAVCEI (International Association of Volcanology and Chemistry of the Earth's Interior)2013 Scientific Assembly, 2013.07. |
5. | 寅丸 敦志, Laboratory geyser; Insights into predictability of mass and style of eruptions, IAVCEI (International Association of Volcanology and Chemistry of the Earth's Interior)2013 Scientific Assembly, 2013.07. |
6. | Microlite systematics: Origin and implications for the conduit flow. |
7. | The effect of electric field on the Liesegang pattern. |
8. | , [URL]. |
Educational


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