Session List

Category Theme
Cosmo- & Geochemistry
A-1: Organic geochemistry, biogeochemistry, formation of oil and gas deposits.
A-2: Geochemistry of natural waters: from atmospheric precipitations to deep brines.
A-3: Nano-mineralogy and Geochemistry
A-4: Aqueous processes on asteroids, Mars, and icy satellites
A-5: Advances in analytical techniques for the study of water-rock interaction.
A-6: Isotope Geology: climate change, georesources, hydrogeology, atmospheric study.
Applied Isotope Geochemistry
B-1: Isotope Biogeochemistry.
B-2: Advances in methodological and instrumental developments.
B-3: Isotope Geology: climate change, georesources, atmospheric study, residence times, critical zone & groundwater flow.
B-4: Isotopes in underground Energy Resources.
B-5: Environmental & Isotope forensics.

※Session of Category B is organized by AIG and LOC committees
Solid and Fluid Earth
C-1: Anatexis and fluid regime of the middle to deep continental crust.
C-2: Fluid-rock reactions and nano- to microstructural evolution during metamorphism and alteration.
C-3: Roles of Fluids for Reaction Kinetics, Time Scale and Deformation of Crust and Mantle.
C-4: Physics and chemistry of melt and fluid and their roles in volcanic and igneous processes.
C-5: Deep WRI and/or Deep Carbon Cycle.
C-6: Fluid-rock interactions during slow and fast earthquakes.
C-7: Mass and Energy Systems in Convergent Margins.
Geosphere-Biosphere Interaction & Environment
D-1: Environmental Risk Management, water quality and human health issues.
D-2: Water-rock interaction to connect abiotic and biotic worlds.
D-3: Ore-forming processes associated with water-rock interactions.
D-4: Geochemical cycles of elements and global environmental changes.
D-5: Water-Rock Interaction Fronts to Climate Change.
Geoengineering & Carbon Neutral
E-1: AI and Big Data Analysis for Geoscience and Resource Exploration (Jointed with 16th International Symposium on Mineral Exploration (ISME-16))
E-2: Sub-, Supercritical and Low-Enthalpy Geothermal Energy.
E-3: Fluid-Rock Interaction in Oil & Gas, Geothermal and CCS Technology.
E-4: Radioactive waste disposal: geological, hydrogeological and geochemical aspects.
Session Explanation Conveners
Organic geochemistry, biogeochemistry, formation of oil and gas deposits.
Organic matter and biological materials play critical roles in changes of earth’s environment and climate by promoting material cycling and reservation. In the viewpoint of water-rock interaction, weathering from rock to soil is enhanced by microbial activity under the hydrological setting, and subsequently enhance production of pedogenic clay mineral, leading to increased transport, deposition, and burial of organic matter in hydrosphere via mineral surface preservation. Biodegradation and diagenesis of organic matter in geosphere including sediments are also important processes for the water-rock interaction. The interaction of organic matter with minerals and pore water during sedimentation and thermal maturation processes is critical for the formation of petroleum resources and mud volcanoes. We invite the topics including organic geochemistry, biogeochemistry, petroleum geochemistry, microbiology, paleobiology, and molecular paleontology. This session will be not limited to material cycling and carbon reservation, and also contains geobiological dynamics, sedimentological system, and paleoenvironmental change. Sawada Ken (Hokkaido University, Japan)

Amane Waseda(JAPEX)

Yuki Morono(JAMSTEC)
Nano-mineralogy and Geochemistry
Nanominerals are ubiquitous in the soil, oceans, and atmosphere of the Earth and extraterrestrial bodies. Due to their unique physicochemical properties, nanominerals play an important role in a wide range of (bio)geochemical processes via the formation, transformation, and interaction with foreign ions and biomolecules. Recent advances in nanoscale analysis have made it possible to understand the behavior of nanominerals in nature. Laboratory and theoretical studies have revealed the unique physicochemical properties of nanominerals. However, the links between natural observations and the laboratory and theoretical studies have been limited. In this session, we welcome contributions on a wide range of research topics related to nanominerals. Keisuke Fukushi (Kanazawa University, Japan)

Satoshi Utsunomiya (Kyushu University, Japan)

Juan Liu (Peking University, China)

Kideok Kwon (Kangwon National University, South Korea)

Hiroyuki Kagi (University of Tokyo, Japan)
Aqueous processes on asteroids, Mars, and icy satellites
Recent advances in spacecraft explorations have revealed the presence of liquid water on multiple Solar System bodies, including Mars, icy satellites (e.g., Europa and Enceladus), volatile-rich dwarf planets (e.g., Ceres) and planetesimals (e.g., the parent body of asteroid Ryugu). Water-rock reactions, such as hydrothermal reactions, possibly occurred within these bodies may have controlled chemistry of liquid water, exchanges of elements, formation of molecules, and habitability. This session welcomes observational studies of geochemical signatures of hydrothermal reactions on these Solar System bodies using spacecrafts, telescopes, and chemical analyses for returned samples from asteroids. This session also covers topics relevant to laboratory experiments and numerical modeling of hydrothermal reactions on planetary bodies, and field research at terrestrial analogues. Yasuhito Sekine (Tokyo Tech., Japan)

Hikaru Yabuta (Hiroshima Univ., Japan)

Keisuke Fukushi (Kanazawa Univ., Japan)

Mohit Melwani Daswani (NASA JPL)
Advances in analytical techniques for the study of water-rock interaction.
New analytical techniques open up new frontiers in any fields in earth and planetary sciences and geoengineering. This session focuses on recent progresses of both instrumental and computational techniques for study of water-rock interactions as well as relevant developments in analytical chemistry in theory and praxis. The techniques also include sampling, preparation, various state-of-the-art instrumental analysis, imaging using various probes, synchrotron-radiation based methods, application of existing techniques to ‘novel’ samples, data quality control, and new theoretical and numerical approaches. These approaches allow us to understand the insights of geochemical reactions, processes, systems, and data on the atomic-/nano- to the macro-scale underlying in nature. Takafumi Hirata (Tokyo University, Japan)

Shoichi Itoh (Kyoto University, Japan)

Katsuhiko Suzuki (JAMSTEC)

Yoshio Takahashi (Tokyo University, Japan)

Takaaki Itai (Tokyo University, Japan)

Anatexis and fluid regime of the middle to deep continental crust
Partial melting is a fundamental process for the formation and evolution of the continental crust. Nanogranitoids and glass inclusions (melt inclusions) found in high-grade metamorphic rocks are the direct evidence of partial melts formed in the crust and characterization of them leads us to understand the detailed characteristics of natural melts formed in the earth's middle to lower crust. Recently, melt inclusions are found to coexist with C-O-H fluid inclusions in some middle to lower crustal anatectic terranes, and role of fluids during crustal melting attracts lots of attention. In this session, we welcome wide range of petrological (igneous and metamorphic), mineralogical, geochemical, geochronological, tectonic, experimental and theoretical research related to partial melting and fluid-related processes in the middle to lower crust. Tetsuo Kawakami (Kyoto University, Japan)

Bruna B. Carvalho (Università degli Studi di Padova, Italy)
Fluid-rock reactions and nano- to microstructural evolution during metamorphism and alteration
Fluid-rock interactions produce characteristic nano- to microstructures, that involves various reaction processes during metamorphism and hydrothermal alteration, including replacement, fracture filling, porosity generation and reaction-induced fracturing. This session focuses on the relationship between the microstructural development and fluid-mediated processes such as mass transport, reaction and deformation. Various approaches such as natural observations, hydrothermal experiments and numerical simulations are welcomed. Atsushi Okamoto (Tohoku University, Japan)

Oliver Plümper (Utrecht University, Netherlands)

Ryosuke Oyanagi (Kokushikan University, Japan)
Roles of Fluids for Reaction Kinetics, Time Scale and Deformation of Crust and Mantle.
Fluids play important roles in reaction kinetics by enhancing the rates at which chemical reactions occur. In many geological settings, fluid-mediated reactions are solely responsible for plate tectonic movements, consequently, Earth’s crust–mantle evolution. This session will explore the critical roles of fluids in various geological processes, including reaction kinetics, time scale, and deformation of the Earth’s crust and mantle. We invite contributions from researchers across various disciplines, including mineralogy, petrology, geochemistry, and structural geology. Topics of interest include but are not limited to fluid-rock interactions, fluid-mediated mineral growth kinetics, fluid-mediated metamorphism/metasomatism, fluid-mediated ore deposit formation, fluid-induced rock deformation and partial melting, and fluid-driven seismicity. The session also aims at exchanging ideas among international geoscientists applying different approaches, tests, and challenges on problems related to crustal/mantle fluids and fluids-mediated solid Earth processes. We especially encourage contributions exploring new directions with novel or interdisciplinary techniques regarding related topics. Tatsuki Tsujimori (Tohoku University)

Masaki Uno (Tohoku University)

Daniel Pastor-Galán (Universidad de Granada/Tohoku University)
Physics and chemistry of melt and fluid and their roles in volcanic and igneous processes
Understanding of physics and chemistry of melt and fluid becomes increasingly important for resolving volcanic and igneous processes such as volcanic eruptions and magmatism in the crust and mantle. Melt and fluid are a transport medium for material and thermal energy in the crust and mantle and strongly control magma and rock physics. Final transport to the surface as volcanic gas and hydrothermal fluid influences the evolution of the atmosphere and hydrosphere. In this session, we aim to combine knowledge about the melt and fluid and discuss their relevance to volcanic and igneous processes. In this view, we welcome all research from high P-T experiments and theoretical studies on melt and fluid, petrological studies including melt and fluid inclusion studies, and geochemical observations on volcanic gas and hydrothermal fluid. Satoshi Okumura (Tohoku Univ., Japan)

Iona McIntosh (JAMSTEC, Japan) Masaaki Morita (ERI, Univ., Tokyo)
Deep WRI and Carbon Cycle
Light elements, including carbon, have a great influence not only on the phase relations, melting temperature and rheological properties of rocks and minerals constituting the Earth's interior, but also are instrumental in controlling the Earth’s surface environments by deep cycling processes. C-O-H volatiles circulating in the deep Earth interior are also closely related to the formation of diamond and carbon fixation processes. This session focuses on studies of the cycling of carbon and other volatile components and their interaction with the surrounding Earth materials under a wide range of conditions in the interior of the Earth, using various methods of natural observations, laboratory experiments and modeling, in the subject fields of mineral physics, isotope geochemistry, and geodynamics. Ohfuji Hiroaki (Tohoku University, Japan)

M. Satish-Kumar (Niigata University, Japan)

Eiji Ohtani (Tohoku University, Japan)
Fluid-rock interactions during slow and fast earthquakes.
This session focus on fluid-rock interactions associated with slow and fast (regular) earthquakes. Presentations based on various spatiotemporal scale phenomena and various methods including modeling, geophysical observations, experiments, and geological investigations are welcome. Asuka Yamaguchi (Tokyo University, Japan)

Kohtaro Ujiie (Tsukuba University, Japan)

Samuele Papeschi (JAMSTEC Kochi core center)
Mass and Energy Systems in Convergent Margins
Cycling of materials and energy in convergent margins has a significant global impact not only on the surface of the earth but also on the environments of the atmosphere, ocean and the deep earth. The material and energy systems in convergent margins form the cornerstones to a comprehensive understanding of tectonic processes and their relationships to igneous and seismic activity over a wide range of spatio-temporal scales. Fluid-related mineral reactions and deformation processes involving melt and water are fundamental aspects of magma supply processes and determining where seismic activity occurs. We welcome contributions on a wide range of research topics related to convergent margins reporting the results of studies of natural samples, experimental work, numerical modeling, and combinations of these different approaches. Simon Wallis (Tokyo University, Japan)

Takayoshi Nagaya (Tokyo Gakugei University, Japan)

Olivia Hogg (Cambridge University, England)
Environmental Risk Management, water quality and human health issues
In recent years, health effects of soil and water pollution and its sustainable remediation measures have become important research topics. In this session, we invite a wide range of papers on the mechanisms of water-rock interaction deeply related to environmental media such as soil, rock, and groundwater, as well as isotope analysis of water and rocks in environmental media. We also expect comprehensive discussions based on research presentations relevant to risk management in environmental remediation, including material cycles in the Earth system, technologies for countermeasures and risk assessment of environmental pollution, and environmental risk management in remedial actions. Junko Hara (AIST, Japan)

Batdemberel Bayanzul (MUST, Mongolia)

Sanya Sirivithayapakorn, (Kasetsart Univ., Thailand)

Yoshishige Kawabe, (Waseda Univ., Japan)

Takeshi Komai (Tohoku Univ., Japan)
Water-rock interaction to connect abiotic and biotic worlds.
This session will mainly cover topics related to (1) prebiotic chemistry (H2, CH4 and organic molecule generation by water/rock interaction), (2) microbial interaction with rocks and minerals at modern environments, and (3) behaviors of hydrocarbon or N-, S-, P-species during water/rock interactions, etc. Other topics will be welcome. Takeshi Kakegawa (Tohoku University, Japan)

Shawn McGlynn (ELSI, Tokyo Tec)
Ore-forming processes associated with water-rock interactions
The formation of ore deposits largely involves water-rock interactions to concentrate valuable elements and metals in various settings (e.g., magmatic-hydrothermal systems, subaerial and submarine hydrothermal systems, boundary of redox conditions and lateritic environments). The style of mineralization is dictated by the physico-chemical nature of fluids and host-rocks, as well as processes of their interactions. Understanding these processes is fundamental to the future efficient exploration. Mining industry will be facing challenges to extract common and critical metals from more unconventional ore deposits (e.g., greater underground, low grade ores and marine mineral resources) to sustain the growing demands for development. The formation of the ore deposits is also closely associated with global tectonic and environmental changes as well as biological evolution in the Earth's history. This session widely covers various types of ore deposits associated with water-rock interactions. We also welcome research with various approaches, such as field investigation and observation, laboratory experiments, theoretical calculation, and development of analytical methods, to understand genesis of the ore deposits and their global implications. Andrea Agangi (Akita University, Japan)

Tsubasa Otake (Hokkaido University, Japan)

Coralie Siégel (CSIRO, Australia)

Tatsuo Nozaki (JAMSTEC, Japan)
AI and Big Data Analysis for Geoscience and Resource Exploration (Jointed with 16th International Symposium on Mineral Exploration (ISME-16))
The purpose is to bring together scientists actively working on some diverse fields in order to foster the exchanges of ideas related to data science including AI and machine learning for geosciences. The session will also cover all aspects that can contribute to resource exploration technology. This session is held as the joint session of 16th International Symposium on Mineral Exploration (ISME-XVI). Tatsu Kuwatani (JAMSTEC, Japan)

Mohamad Nur Heriawan (Bandung Institute of Technology, Indonesia)

Katsuaki Koike (Kyoto Univ, Japan)

Tada-nori Goto (Univ. Hyogo, Japan)
Sub-,Supercritical and Low-Enthalpy Geothermal Energy.
Geothermal energy plays an important role in a decarbonized society and a stable energy supply. Under these circumstances, a dramatic increase in the amount of power generation is expected through the use of geothermal resources of higher temperatures and pressure, and research and development are being carried out in various countries.
However, the characteristics of geothermal fluids and water-rock interactions under high-temperature and high-pressure environments are still largely unknown, and further research and development are desired. In this session, we would like to present and discuss the results of advanced research and development mainly related to this point.
Hiroshi Asanuma (National Institute of Advanced Industrial Science and Technology, Japan)

Roland Horne (Stanford University, USA)
Fluid-Rock Interaction in Oil & Gas, Geothermal and CCS Technology.
The session focuses on the chemical, physical and geomechanical aspects of subsurface water-rock interaction during oil, gas and geothermal explorations, and geological sequestration of carbon-dioxide. Environmental issues such as ground water protection and waste water management are also included. In this session, the latest findings in the broad areas of sustainable subsurface energy resources development are shared for the future carbon neutral society. Invited Speaker Isabelle Cozzarelli USGS Geology, Energy & Minerals (GEM) Science Center in Reston, VA)

Shigemi Naganawa(Akita University)

Pri Utami (Gadjah Mada University)

Kazuhiko Tezuka(JAPEX)

Hiroyuki Yamagishi (Tohoku University)
Radioactive waste disposal: geological, hydrogeological and geochemical aspects.
Disposal of radioactive waste is an urgent issue, and its safety must be discussed by following scientific findings from various perspectives. In particular, groundwater flow and geochemical aspects will continue to be essential in building a safety case for the disposal. This session aims to share the latest relevant findings and future challenges. Tsutomu Sato (Hokkaido University, Japan)

Jordi Cama (Institute of Environmental Assessment and Water Research, CSIC, Spain)

Yuichi Niibori (Tohoku University, Japan)

Akira Kirishima (Tohoku University, Japan)