Teruhiko Kashiwabara


Geochemistry Research Group, Submarine Resources Research Center (SRRC),

Research Institute for Marine Resources Utilization (MRU),

Japan Agency for Marine-Earth Science and Technology (JAMSTEC)

/ Department of Earth and Atmospheric Sciences, University of Alberta

E-mail: teruhiko-kashiwa@jamstec.go.jp

Key words:

Molecular geochemistry, Surface chemistry, Metallomics, Synchrotron X-ray analysis, Non-traditional stable isotope, Deep-ocean minerals, Evolution of Earth and life

Academic experience

2017.7 - : Visiting scientist of Univeristy of Alberta (Prof. Kurt Konhauser)

2016.4 - : Research scientist, JAMSTEC 

2014.12 - 2016.3: Project researcher, JAMSTEC

2011.4 - 2014.11: Postdoctral fellow, JAMSTEC 


Ph.D., 2011, Geochemistry, Hiroshima University (Prof. Yoshio Takahashi)

M.S., 2008, Chemistry, Tokyo University of Science (Prof. Izumi Nakai)

B.S., 2006, Chemistry, Tokyo Univeristy of Science (Prof. Izumi Nakai)

Publications: Google scholar

[1] T. Kashiwabara, A. Hokura, N. Kitajima, R. Onuma, H. Saito, T. Abe, I. Nakai,”Distribution and oxidation state of arsenic in root of

      arsenic-hyperaccumulator fern, Pteris vittata L., by using synchrotron radiation X-ray fluorescence analysis”, Bunsekikagaku (in

      Japanese with English Abstract), 55, 743-748 (2006). [link]

[2] N. Kitajima, T. Kashiwabara, N. Fukuda, S. Endo, A. Hokura, Y. Terada, I. Nakai, “Observation of arsenic transfer in leaf tissue of

      hyperaccumulator fern by utilizing synchrotron radiation micro-XRF imaging”, Chemistry Letters, 37, 32-33 (2008). [link]

[3] N. Tanigawa, T. Kashiwabara, A. Hokura, T. Abe, M. Shibata, M. Nakayama, “A Peculiar Yellow Flower Coloration of Camellia

      Using Aluminum-Flavonoid”, Journal of the Japanese Society for Horticultural Science, 77, 402-407 (2008). [link]

[4] T. Kashiwabara, S. Mitsunobu, A. Das, T. Itai, M. Tanimizu, and Y. Takahashi, “Oxidation States of Antimony and Arsenic in

      Marine Ferromanganese Oxides Related to Their Fractionation in Oxic Marine, Environment”, Chemistry Letters, 37, 756-757 (2008). [link]

[5] S Mitsuo, T. Kashiwabara, A. Hokura, N. Kitajima, F. Goto, T. Yoshihara, T. Abe, I. Nakai, “Study on Accumulation Mechanism of

      Lead and Copper in Metal-Hypertolerant Fern, Athyrium yokoscense, by micro-XRF Analysis Utilizing Synchrotron Radiation”,

      Adv. X-Ray. Chem. Anal.(in Japanese with English Abstract), 40, 183-193 (2009). [link]

[6] T. Kashiwabara, Y. Takahashi, and M. Tanimizu, “A XAFS study on the mechanisms of isotopic fractionation of molybdenum

      during its adsorption on ferromanganese oxides”, Geochemical Journal, 43, e31-e36 (2009). [link]

[7] T. Kashiwabara, S. Mitsuo, A. Hokura, N. Kitajima, T. Abe and I. Nakai, “In vivo micro X-ray analysis utilizing synchrotron radiation of

      the gametophytes of three arsenic accumulating ferns, Pteris vittata L., Pteris cretica L., Athyrium yokoscense, in  different growth stages”,

      Metallomics, 2, 261-270 (2010). [link]

[8] T. Kashiwabara, Y. Takahashi, T. Uruga, H. Tanida, Y. Terada, Y. Niwa, and M. Nomura, “Speciation of Tungsten in Natural

      Ferromanganese Oxides Using Wavelength Dispersive XAFS” Chemistry Letters, 39, 870-871 (2010). [link]

[9] T. Kashiwabara, Y. Takahashi, M. Tanizmizu, and A. Usui, “Molecular-scale mechanisms of distribution and isotopic fractionation

      of molybdenum between seawater and ferromanganese oxides”, Geochimica et Cosmochimica Acta, 75, 5762-5784 (2011). [link]

[10] S. Kato, S. Kikuchi, T. Kashiwabara, Y. Takahashi, K. Suzuki, T. Itoh, M. Ohkuma, and A. Yamagishi “Prokaryotic abundance and

       community composition in a freshwater iron-rich microbial mat at circumneutral pH” Geomicrobiology Journal, 29 , 896-905 (2012). [link]

[11] T. Kashiwabara, Y. Takahashi, T. Uruga, H. Tanida, Y. Terada, and A. Usui “Tungsten species in natural ferromanganese oxides

       related to its different behavior from molybdenum in oxic ocean”, Geochimica et Cosmochimica Acta, 106, 364-378 (2013). [link]

[12] T. Kashiwabara, R. Toda, K. Fujinaga, T. Honma, Y. Takahashi, and Y. Kato, “Determination of Host Phase of Lanthanum in

       Deep-sea REY-rich Mud by XAFS and m-XRF using High-energy Synchrotron Radiation”, Chemistry Letters, 43, 199-200 (2014). [link]

[13] T. Kashiwabara, Y. Oishi, A. Sakaguchi, T. Sugiyama, A. Usui, and Y. Takahashi, ”Chemical Processes for the extreme enrichment

       of tellurium into marine ferromanganese oxides”, Geochimica et Cosmochimica Acta, 131, 150-163 (2014). [link]

[14] Y. Takahashi, Y. Hayasaka, K. Morita, T. Kashiwabara, R. Nakada, M. A. Marcus, K. Kato, K. Tanaka, and H. Shimizu, “Transfer

       of rare earth elements (REE) from manganese oxides to phosphates during early diagenesis in pelagic sediments inferred from REE

       patterns, X-ray absorption spectroscopy, and chemical leaching method”, Geochemical Journal, 49, 653-674 (2015). [link]

[15] A. Usui, K. Nishi, H. Sato, B. Thornton, T. Kashiwabara, A. Tokumaru, A. Sakaguchi, K. Yamaoka, S. Kato, S. Nitahara, K. Suzuki, K.

       Iijima, T. Urabe, “Continuous Accumulation of Hydrogenetic Ferromanganese Crusts Since 18 Ma Over Full Water Depths  in a NW Pacific

       Seamount -Evidence from a Joint Geoscientific Study using ROVs at the Takuyo-Daigo Guyot–”, Ore Geology Reviews, 87, 71-87 (2017). [link]

[16] T. Kashiwabara, S. Kubo, M. Tanaka, R. Senda, T. Iizuka, M. Tanimizu, Y. Takahashi “Stable isotope fractionation of tungsten

        during adsorption on Fe and Mn (oxyhydr)oxides”, Geochimica et Cosmochimica Acta, 204, 52-67 (2017). [link]

[17] S. Kato, M. Miyazaki, S. Kikuchi, T. Kashiwabara, Y. Saito, E. Tasumi, K. Suzuki, K. Takai, L.T. Cao, A. Ohashi, H. Imachi,

       “Biotic manganese oxidation coupled with methane oxidation using a continuous-flow bioreactor system under marine conditions”,

        Water Science and Technology, 76, 1781-1795 (2017). [link]

[18] Y. Watanabe, T. Kashiwabara, J. Ishibashi, O. Sekizawa, K. Nitta, T. Uruga, Y. Takahashi, “Different distribution behaviors of

        molybdenum and tungsten in a sediment–water system under various redox conditions”, Chemical Geology, 471, 38-51 (2017). [link]

[19] T. Kashiwabara, R. Toda, K. Nakamura, S. Kubo, K. Yasukawa, K. Fujinaga, T. Nozaki, Y. Takahashi, K. Suzuki, Y. Kato, 

       “Synchrotron X-ray spectroscopic perspective on the formation mechanism of REY-rich muds in the Pacific Ocean”,

        Geochimica et Cosmochimica Acta, 240, 274-292 (2018). [link]

[20] M. Tanaka, D. Ariga, T. Kashiwabara, Y. Takahashi, “Adsorption mechanism of molybdenum (VI) on manganese oxide causing a

        large isotopic fractionation”, ACS Earth and Space Chemistry, 2, 1187-1195 (2018). [link]

[21] S. Yang, S. Uesugi, H. Qin, M. Tanaka, M. Kurisu, C. Miyamoto, X. Zhao, T. Kashiwabara, A. Usui, Y. Takahashi, “Comparison of 

       speciation of oxyanions in hydrogenetic ferromanganese nodules: arsenate and molybdate”, ACS Earth and Space Chemistry3, 29-38 (2019).

[22] T. Kashiwabara, K. Tanoi, N. Kitajima, A. Hokura, T. Nakanishi, T. Abe, I. Nakai, “Comparative in vivo imaging of arsenic and phosphorus

        in Pteris vittata Gametophyte by synchrotron m-XRF and radioactive tracer techniques.” Chemistry Letters, 48, 319-321, (2019).

[23] S. Kikuchi, T. Kashiwabara, T. Shibuya, Y. Takahashi, “Molecular-scale insights into differences in the adsorption of cesium and selenium

        on biogenic and abiogenic ferrihydrite”, Geochimica et Cosmochimica Acta251, 1-14 (2019).

[24] H. Qin, S. Uesugi, S. Yang, M. Tanaka, T. Kashiwabara, T. Itai, A. Usui, Y. Takahashi, “Enrichment mechanisms of antimony and arsenic in

        marine ferromanganese oxides: insights from the structural similarity”, Geochimica et Cosmochimica Acta257, 110-130 (2019).

[25] F. Shiraishi, Y. Matsumura, R. Chihara, T. Okumura, T. Itai, T. Kashiwabara, A. Kano, Y. Takahashi, “Mn(II) oxidation processes at the

        surface of microbially colonized manganese deposits, Sambe hot spring, Japan”, Geochimica et Cosmochimica Acta, 258, 1-18, (2019).

[26] W. Hao, D. Pudasainee, R. Gupta, T. Kashiwabara, D. Alessi, K. Konhauser, “Effect of acidic conditions on surface properties and metal 

        binding capacity of clay minerals”, ACS Earth and Space Chemistry, 3, 2421-2429 (2019).

[27] W. Hao, S. Flynn, T. Kashiwabara, Md. Samrat Alam, S. Bandara, L. Swaren, L. Robbins, D. Alessi, K. Konhauser, “The impact of ionic

        strength on the proton reactivity of clay minerals”, Chemical Geology, 529, 119294 (2019).

[28] Y. Usui, M. Saitoh, K. Tani, M. Nishizawa, T. Shibuya, C. Kato, T. Okumura, T. Kashiwabara, “Identification of paleomagnetic remanence   

        carriers in ca. 3.47 Ga dacite from the Duffer Formation, the Pilbara Craton”, Physics of the Earth and Planetary Interiors, 299, 106411 (2020).

[29] A. Usui, H. Hino, D. Suzushima, N. Tomioka, Y. Suzuki, M. Sunamura, S. Kato, T. Kashiwabara, S. Kikuchi, G.-I. Uramoto, K. Suzuki and K.

       Yamaoka, “Modern precipitation of hydrogenetic ferromanganese minerals during on-site 15 year exposure tests”, Scientific Reports10, 3558


[30] W. Hao, T. Kashiwabara, R. Jin, Y. Takahashi, M. Gingras, D. Alessi, K. Konhauser, “Clay minerals as a source of cadmium to estuaries”,

  Scientific Reports, 10, 10417 (2020).

[31] S. Yamada, Y. Ichinohe, H. Tatsuno, R. Hayakawa, H. Suda, T. Ohashi, Y. Ishisaki, T. Uruga, O. Sekizawa, K. Nitta, Y. Takahashi, T. Itai, H. 

       Suga, M. Nagasawa, M. Tanaka, M. Kurisu, T. Hashimoto, D. Bennett, E. Denison, W. Doriese, M. Durkin, J. Fowler, G. O'Neil, K. Morgan, D.

       Schmidt, D. Swetz, J. Ullom, L. R. Vale, S. Okada, T. Okumura, T. Azuma, T. Tamagawa, T. Isobe, S. Kohjiro, H. Noda, K. Tanaka, M.

       Taguchi, Y. Imai, K. Sato, T. Hayashi, T. Kashiawabara, and K. Sakata., “Broad-band High-Energy Resolution Hard X-ray Spectroscopy using

       Transition Edge Sensors at SPring-8”, Review of Scientific Instruments, 1,013103 (2021).

[32] K.T. Goto, Y. Sekine, T. Ito, K. Suzuki, A. D. Anbar, G.W. Gordon, Y. Harigane, T. Maruoka, G. Shimoda, T. Kashiwabara, Y. Takaya, T.   

       Nozaki , J.R. Hein, G. M. Tetteh, F.K. Nyame, S. Kiyokawa, “Progressive ocean oxygenation at ~2.2 Ga inferred from geochemistry and

       molybdenum isotopes of the Nsuta Mn deposit”, Chemical Geology, 567, 120116 (2021).

[33] T. Kashiwabara, N. Kitajima, R. Onuma, N. Fukuda, E. Satoshi, Y. Terada, T. Abe, A. Hokura, I. Nakai, “Synchrotron micro X-ray

       fluorescence imaging of arsenic in frozen-hydrated sections of a root of Pteris vittata”, Metallomics, 13, mfab009 (2021).