Kyushu University Academic Staff Educational and Research Activities Database
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Akane Ito Last modified date:2024.04.11

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応用地質学研究室 .
Academic Degree
Ph.D. Engineering, Hokkaido University, Japan
Country of degree conferring institution (Overseas)
Field of Specialization
Resource Geology, Geochemistry, Environmental Geochemistry, Isotope Geochemistry
Total Priod of education and research career in the foreign country
Research Interests
  • ・Development of a rapid method for simultaneous determination of chromium species
    ・Investigation of the variation in heavy metal isotopes in the surface environment and evaluation of as redox proxy
    ・Geochemical behavior of trace elements in the estuarine environment
    ・Rare metal enrichment in laterite deposits and development of geochemical indicator for exploration
    ・Environmental assessment for heavy mineral processing using geochemical and isotopic signatures
    ・The attenuation processes of toxic elements during the formation of Fe colloid in passive treatment
    keyword : rare metal, weathering, environmental assessment, stable isotope, geochemical reaction modeling
Academic Activities
1. Ito A., Morishita Y., Morimoto T., and Tanimizu M., Rapid determination of chromium species in environmental waters using a diol-bonded polymer-stationary column under water-rich conditions coupled with ICPMS, Analytical Sciences, 10.1007/s44211-023-00475-6, 40, 359-366, 2024.01.
2. Takahiro Morimoto, Akane Ito, Masaharu Tanimizu., Simultaneous and sensitive analysis of glyphosate, glufosinate, and their metabolites in surface water by HPLC-ICP-MS/MS, Analytical Sciences,, 39, 1047-1052, 2023.07.
3. R. Umam, M. Tanimizu, H. Nakamura, Y. Nishio, R. Nakai, N. Sugimoto, Y. Mori, Y. Kobayashi, A. Ito, S. Wakaki, K. Nagaishi, and T. Ishikawa, Lithium isotope systematics of Arima hot spring waters and groundwaters in Kii Peninsula, Geochemical Journal, 11, 5, 8-17, 2022.06.
4. M. Tanimizu, N. Sugimoto, T. Hosono, C. Kuribayashi, T. Morimoto, A. Ito, R. Umam, Y. Nishio, K. Nagaishi, T. Ishikawa, Application of B and Li isotope systematics for detecting chemical disturbance in groundwater associated with large shallow inland earthquakes in Kumamoto, Japan, Geochemical Journal, 55, 4, 241-250, 2021.11.
5. Akane Ito, Tsubasa Otake, Adi Maulana, Kenzo Sanematsu, Sufriadin, Tsutomu Sato, Geochemical constraints on the mobilization of Ni and critical metals in laterite deposits, Sulawesi, Indonesia: A mass‐balance approach, Resource Geology, 10.1111/rge.12266, 71, 3, 255-282, 2021.07.
6. Tsubasa Otake, Ryoichi Yamada, Ryohei Suzuki, Shunsuke Nakamura, Akane Ito, Ki-Cheol Shin, Tsutomu Sato, Large Fe isotope fractionations in sulfide ores and ferruginous sedimentary rocks from the Kuroko volcanogenic massive sulfide deposits in the Hokuroku district, northeast Japan, Geochimica et Cosmochimica Acta, 10.1016/j.gca.2020.12.009, 295, 49-64, 2021.02.
7. Delina, Ruth Esther; Arcilla, Carlo; Otake, Tsubasa; Garcia, Jhonard John; Tan, Mark; Ito, Akane, Chromium occurrence in a nickel laterite profile and its implications to surrounding surface waters, CHEMICAL GEOLOGY, 10.1016/j.chemgeo.2020.119863, 558, 2020.12.
8. Chikanda, Frances; Otake, Tsubasa; Ohtomo, Yoko; Ito, Akane; Yokoyama, Takaomi D.; Sato, Tsutomu, Magmatic-Hydrothermal Processes Associated with Rare Earth Element Enrichment in the Kangankunde Carbonatite Complex, Malawi, MINERALS, 10.3390/min9070442, 9, 7, 2019.07.
9. Frances Chikanda, Tsubasa Otake, Yoko Ohtomo, Akane Ito, Takaomi D. Yokoyama, Tsutomu Sato, Magmatic-Hydrothermal Processes Associated with Rare Earth Element Enrichment in the Kangankunde Carbonatite Complex, Malawi, Minerals, 10.3390/min9070442, 9, 7, 442-442, 2019.07, Carbonatites undergo various magmatic-hydrothermal processes during their evolution that are important for the enrichment of rare earth elements (REE). This geochemical, petrographic, and multi-isotope study on the Kangankunde carbonatite, the largest light REE resource in the Chilwa Alkaline Province in Malawi, clarifies the critical stages of REE mineralization in this deposit. The δ56Fe values of most of the carbonatite lies within the magmatic field despite variations in the proportions of monazite, ankerite, and ferroan dolomite. Exsolution of a hydrothermal fluid from the carbonatite melts is evident based on the higher δ56Fe of the fenites, as well as the textural and compositional zoning in monazite. Field and petrographic observations, combined with geochemical data (REE patterns, and Fe, C, and O isotopes), suggest that the key stage of REE mineralization in the Kangankunde carbonatite was the late magmatic stage with an influence of carbothermal fluids i.e. magmatic–hydrothermal stage, when large (~200 µm), well-developed monazite crystals grew. The C and O isotope compositions of the carbonatite suggest a post-magmatic alteration by hydrothermal fluids, probably after the main REE mineralization stage, as the alteration occurs throughout the carbonatite but particularly in the dark carbonatites..
10. Akane Ito, Tsubasa Otake, Ki-Cheol Shin, Kamar Shah Ariffin, Fei-Yee Yeoh, Tsutomu Sato, Geochemical signatures and processes in a stream contaminated by heavy mineral processing near Ipoh city, Malaysia, Applied Geochemistry, 10.1016/j.apgeochem.2017.05.007, 82, 89-101, 2017.07.
1. A. Ito, K. Isamoto, M. Tanimizu, Geochemical and isotopic behavior of chromium in estuarine mixing zones: Insights from two rivers in Kochi Prefecture, Japan, Water Rock Interaction (WRI-17) – Applied Isotope Geochemistry (AIG-14), 2023.08.
2. A. T. Mutasingwa, A. Imai, K. Yonezu, A. Ito, Mineralogy and geochemical characterization of the Wigu and Maji Ya Weta Carbonatites REE-related deposits, Kisaki area, Eastern Tanzania, 72th Society of Resource Geology Annual Conference, 2023.06.
3. D. Makwela, A. Imai, K. Yonezu, A. Ito, Distribution of rare earth elements in the Kangankunde and Tundulu carbonatites of Chilwa Alkaline Province, Malawi – a key to mineralization conditions, 72th Society of Resource Geology Annual Conferenceual, 2023.06.
4. Distribution of hydrothermal alteration zones in the southwestern part of the Shin-Iriki mine, northern Kagoshima, Japan.
Membership in Academic Society
  • Geochemical Society
  • Japan Geoscience Union
  • Society of Resource Geology