Multidisciplinary and Interdisciplinary (M)
Session Sub-category Others(ZZ)
Session ID M-ZZ42
Title Frontiers in geochemistry: new challenges and future prospects
Short Title Frontiers in geochemistry
Main Convener Name Hajime Obata
Affiliation Marine inorganic chemistry division, Atmosphere and Ocean Research Institute, University of Tokyo
Co-Convener 1 Name Makiko K. Haba
Affiliation Department of Earth and Planetary Sciences, Tokyo Institute of Technology
Co-Convener 2 Name Hirochika Sumino
Affiliation Research Center for Advanced Science and Technology, The University of Tokyo
Co-Convener 3 Name Mayuri Inoue
Affiliation Department of Earth Sciences, Okayama University
Session Language 
J
Scope 
In modern geoscience, new analytical methods and perspectives from chemistry are the crucial driving forces for innovative research. The primary aim of this session is to seek new breakthroughs in geoscience by accumulating the knowledge from the speakers who are skilled in advanced chemical methods.
In geochemistry and cosmochemistry, the migration of elements among various phases, variations in isotopic composition and isotope fractionation, and the elucidation of chemical species and chemical elemental processes are being investigated by using state-of-the-art analytical methods. In 2025, this session, 'Frontiers of geochemistry: new challenges and future prospects' organised by the Geochemical Society Japan, will invite speakers who are challenging the frontier sciences at interdisciplinary areas. We would also like to promote cooperation among many participants from various research fields.
Presentation Format Oral and Poster presentation
Invited Authors Toshihiro Yoshimura (Japan Agency for Marine-Earth Science and Technology)
Hiroki Suga (Japan Synchrotron Radiation Research Institute)
Time Presentation No Title Presenter
Oral Presentation May 30 PM1
13:50 - 14:15 MZZ42-01 Cation partitioning during aqueous alteration of asteroid Ryugu recorded in carbonate minerals and Mg isotopes Toshihiro Yoshimura
14:15 - 14:30 MZZ42-02 Neutron capture effects on Er isotopes in meteorites Satoshi Yoshihara
14:30 - 14:45 MZZ42-03 Development of a method for estimating analytical accuracy considering blooming effects in quantitative imaging using an MCP/FS/qCMOS 2-D ion detection system. Chikashi Yoshimoto
14:45 - 15:00 MZZ42-04 Development of mid-infrared cavity ring-down spectrometer for clumped isotope analysis of CO2 Hideki Tomita
15:00 - 15:15 MZZ42-05 Volatile recycling in the mantle revealed by ultra-trace halogen analysis using neutron irradiation and noble gas mass spectrometry Hirochika Sumino
Oral Presentation May 30 PM2
15:30 - 15:45 MZZ42-06 Wavenumber calibration of naphthalene from next-generation high-resolution Raman spectroscopy and theoretical calculations Ko Fukuyama
15:45 - 16:00 MZZ42-07 Future prospects for AMS measurements of cosmogenic nuclides via understanding the mechanism of negative ion formation in Cs-sputter ion sources Atsunori Nakamura
16:00 - 16:25 MZZ42-08 Synchrotron radiation-based soft X-ray spectroscopy useful for the Frontiers in geochemistry Hiroki Suga
16:25 - 16:40 MZZ42-09 Accurate micro-XAFS determination of Fe2+/Fe3+ in optically anisotropic minerals by multivariate statistical approach Taisuke Ito
16:40 - 16:55 MZZ42-10 Promoting Soil Aggregate Formation Toward Carbon Neutrality: Spatial Distribution of Chemical Species of Iron and Soil Organic Matter in Forest Soil Microaggregate Takema Furukawa
Presentation No Title Presenter
Poster Presentation May 30 PM3
MZZ42-P01 U-Pb geochronology of zircons by ID-TIMS on two coarse-grained eucrites Makiko K. Haba
MZZ42-P02 Evaluation of La isotope heterogeneity in the early solar system by high-precision isotope analysis Ryo Sano
MZZ42-P03 Theoretical Framework for Analytical Precision: Guidelines for Efficient High-Precision Analysis Based on Fisher Information Yuuki Hagiwara
MZZ42-P04 Distribution coefficients of 29 elements on anion-exchange resin in HCl–2-propanol mixtures Tomoya Obase
MZZ42-P05 Isotopologue analysis of Polycyclic Aromatic Hydrocarbon (PAH) using Orbitrap Mass Spectrometry Beomsik Kim
MZZ42-P06 Do freshwater bacteria consume methylphosphonic acid? Asuka Yano
MZZ42-P07 Effect of the 2020 Global Surfur Cap on sulfur and trace element concentrations in atmospheric aerosols in Nagoya Hana Natsume
MZZ42-P08 Removal fluxes of iron and manganese in the western subarctic Pacific surface waters by using Th-234 and U-238 disequilibrium. Hajime Obata
MZZ42-P09 Distributions and biogeochemical cycles of Fe, Mn, Cu, Zn in the Western North Pacific Inhee Kim
MZZ42-P10 Studies on changes of seawater carbonate chemistry during the ocean alkalinity
enhancement 		Junsei Kugimoto
MZZ42-P11 Detection of amorphous calcium carbonate from coral skeletons Yusei Takahashi
MZZ42-P12 Methane and hydrogen dependent deep biosphere at the boundary between the North American and the Eurasian Plates: Hydrogeological controls on prokaryotic ecology Hiroki Nishimura