People

Kazuhide Mimura (Visiting Researcher)

Research Interests

Genesis of REY-rich mud

Determining depositional age of pelagic clay

Biostratigraphy of ichthyoliths (microfossil of fish teeth)


Research achievements

(As of 2021/4/12)

[Journal papers (peer-reviewed)]

Yasukawa, K., Kino, S., Ohta, J., Azami, K., Tanaka, E., Mimura, K., Fujinaga, K., Nakamura, K., Kato, Y. . Stratigraphic Variations of Fe–Mn Micronodules and Implications for the Formation of Extremely REY-Rich Mud in the Western North Pacific Ocean. Minerals, 11, 270, 2021.


Yasukawa, K., Kino, S., Azami, K., Tanaka, E., Mimura, K., Ohta, J., Fujinaga, K., Nakamura, K., Kato, Y. Geochemical features of Fe-Mn micronodules in deep-sea sediments of the western North Pacific Ocean: Potential for co-product metal extraction from REY-rich mud. Ore Geology Reviews 127, 103805, 2020.


Tanaka, E., Nakamura, K., Yasukawa, K., Mimura, K., Fujinaga, K., Ohta, J., Iijima, K., Nozaki, T., Machida, S., Kato, Y. Chemostratigraphic correlations of deep-sea sediments in the western North Pacific Ocean: A new constraint on the distribution of mud highly enriched in rare-earth elements. Minerals 10, 575, 2020.


Ohta, J., Yasukawa, K., Nozaki, T., Takaya, Y., Mimura, K., Fujinaga, K., Nakamura, K., Usui, Y., Kimura, J.-I., Chang, Q., Kato, Y. Fish proliferation and rare-earth deposition by topographically induced upwelling at the late Eocene cooling event. Scientific Reports 10, 9896, 2020.


Tanaka, E., Nakamura, K., Yasukawa, K., Mimura, K., Fujinaga, K., Iijima, K., Nozaki, T., Kato, Y. Chemostratigraphy of deep-sea sediments in the western North Pacific Ocean: Implications for genesis of mud highly enriched in rare-earth elements and yttrium. Ore Geology Reviews 119, 103392, 2020.


Mimura, K., Nakamura, K., Yasukawa, K., Machida, S., Ohta, J., Fujinaga, K., Kato, Y. Significant impacts of pelagic clay on average chemical composition of subducting sediments: New insights from discovery of extremely rare-earth elements and yttrium-rich mud at Ocean Drilling Program Site 1149 in the western North Pacific Ocean. Journal of Asian Earth Sciences 186, 104059, 2019. (web page)


Yasukawa, K., Ohta, J., Mimura, K., Tanaka, E., Takaya, Y., Usui, Y., Fujinaga, K., Machida, S., Nozaki, T., Iijima, K., Nakamura, K. and Kato, Y. A new and prospective resource for scandium: Evidence from the geochemistry of deep-sea sediment in the western North Pacific Ocean. Ore Geology Reviews 102, 260-267, 2018.


[International Conference]

Ohta, J., Yasukawa, K., Nozaki, T., Takaya, Y., Mimura, K., Fujinaga, K., Nakamura, K., Usui, Y., Kimura, J.-I., Chang, Q., Kato, Y. Fish debris and rare-earth deposition event in the latest Eocene revealed by osmium isotope stratigraphy. Goldschmidt 2020. June 23, 2020. (Online) 


Mimura K.Yamamoto K., Nakamura K., Yasukawa, K., Ohta J., Fujinaga K., Machida S., Usui Y. and Kato Y. Origin of REY-rich mud in the North Pacific Ocean constrained from bulk geochemistry and depositional age. Goldschmidt 2019. August 22, 2019, Barcelona, Spain. (Poster)


Kato Y., Yasukawa, K., Nakamura K., Fujinaga K., Takaya Y., Ohta J., Tanaka E., Mimura K., Iijima K., Machida S. and Nozaki T. REY-rich mud: An overview from scientific and engineering perspectives. Goldschmidt 2019. August 22, 2019, Barcelona, Spain. (Oral)


Mimura, K., Yamamoto, K., Nakamura, K., Yasukawa, K., Ohta, J., Fujinaga, K., Machida, S. and Kato, Y. Chemostratigraphy and depositional ages of pelagic clay in the North Pacific Ocean: Implications for the origin of REY-rich mud. Goldschmidt 2018, August 16, 2018, Boston, USA. (Poster)


Yasukawa, K., Kawarabata, C., Tanaka, E., Mimura, K., Nakamura, K., Fujinaga, K. and Kato, Y. A quantitative constraint on the distribution of extremely REY-rich mud based on mass balance calculations of Nd in the ocean. Goldschmidt 2018, August 17, 2018, Boston, USA. (Oral)


Mimura, K., Yamamoto, K., Nakamura, K., Yasukawa, K., Ohta, J., Fujinaga, K., Machida, S. and Kato, Y. A chemostratigraphic correlation of pelagic clay in the North Pacific Ocean. Goldschmidt 2017, August 16, 2017 Paris, France. (Poster)


Mimura, K., Nakamura, K., Yasukawa, K., Ohta, J., Fujinaga, K., Machida, S. and Kato, Y. Chemostratigraphic correlation of deep-sea sediments in the western North Pacific Ocean and its implication for the origin of the extremely REY-rich mud. Goldschmidt 2016, June 29, 2016 Yokohama, Japan. (Oral)