TAKEHIRO HIRAYAMA

Last Updated :2026/08/07

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Assistant Professor (Special Appointment)
E-mail
t-hirayamahiroshima-u.ac.jp
Other Contact Details
Room A611, 6th Floor, School of Science Building A Earth and Planetary Systems Science Program Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan, Japan
TEL : (+81)82-424-5271 FAX : (+81)
Self-introduction
My research interests lie in petrology and geochemistry, with the aim of understanding material cycling and magma genesis in subduction zones. Although my current work mainly focuses on volcanic rocks, I would like to expand my research to include crustal rocks, fault materials, hot spring waters, river waters, and seawater by combining elemental and isotopic analyses with field investigations.

Basic Information

Major Professional Backgrounds

  • 2025, Graduate School of Advanced Science and Engineering, Hiroshima University Earth and Planetary Systems Science Program, Assistant Professor
  • 2023, 2025, Graduate School of Science, The University of Tokyo Department of Earth and Planetary Science, Specially Appointed Researcher
  • 2022, Faculty of Engineering, Kindai University, part-time teacher
  • 2022, 2023, Graduate School of Advanced Science and Engineering, Hiroshima University Earth and Planetary Systems Science Program, researcher

Educational Backgrounds

  • Hiroshima Univ., 2019, 2022
  • Hiroshima Univ., 2017, 2019
  • Hiroshima University, School of Science, Department of Earth and Planetary Systems Science, 2013, 2017

Academic Degrees

  • Hiroshima University
  • Hiroshima University

Educational Activity

  • [Master's Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Earth and Planetary Systems Science Program
  • [Doctoral Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Earth and Planetary Systems Science Program

In Charge of Primary Major Programs

  • Earth and Planetary Systems Science

Research Fields

  • Mathematical and physical sciences;Earth and planetary science;Geology
  • Mathematical and physical sciences;Earth and planetary science;Petrology / Mineralogy / Economic geology

Research Keywords

  • geochemistry
  • isotope
  • volcano
  • Trace element

Affiliated Academic Societies

  • Japan Association of Mineralogical Sciences
  • Geochemical Society of Japan
  • Japan Geoscience Unio

Educational Activity

Course in Charge

  1. 2026, Liberal Arts Education Program1, 2Term, Earth Science A

Research Activities

Academic Papers

  1. Speciation of Iron in Soil Including Structural Fe(II)/Fe(III) Ratios in Phyllosilicates by X-ray Absorption Fine Structure Spectroscopy, ACS EARTH AND SPACE CHEMISTRY, 10(7), 1666-1684, 20260726
    Link to Paper Search Results by DOI
  2. ★, The origin of garnet in Quaternary rhyolites of the Hime-shima Volcanic Group, east Kyushu, southwest Japan Arc, JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES, 121(1), 2026
    Link to Paper Search Results by DOI
  3. ★, Origin of xenoliths within the Hime–shima volcanic group, Kyushu, southwestern Japan Arc, JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES, 2022

Invited Lecture, Oral Presentation, Poster Presentation

  1. Geochemical study of magma genesis in the Hime-shima volcanic group, North Kyushu, Southwest Japan Arc., Takehiro HIRAYAMA, Tomoyuki SHIBATA , Masako YOSHIKAWA,, 2025/09/10, With Invitation, Japanese

External Funds

Acceptance Results of Competitive Funds

  1. 2026, 2029
  2. 2024, 2025
  3. 2022, 2023
  4. 2025, 2027
  5. 2025, 2026