J-GLOBAL         Last updated: Mar 15, 2019 at 23:28
The University of Tokyo
Graduate School of Science
Job title
Associate Professor
(BLANK)(The University of Tokyo), (BLANK)(The University of Tokyo)

Research Areas


Academic & Professional Experience

May 2016
Professor, Graduate School of Science, The University of Tokyo
Aug 2010
Apr 2016
Professor, Graduate School of Frontier Sciences, The University of Tokyo
Aug 2002
Jul 2010
Assistant Professor, Graduate School of Science, The University of Tokyo
Apr 1993
Jul 2002
Research Associate, Graduate School of Science, The University of Tokyo
Apr 1992
Mar 1993
Research Fellowship for Young Scientists, Japan Society for the Promotion of Science


Apr 1987
Mar 1992
Department of Geophysics, Graduate School of Science, The University of Tokyo
Apr 1995
Mar 1987
Department of Geophysics, Faculty of Science, The University of Tokyo

Awards & Honors

The Yamazaki Prize

Published Papers

Outer limits of the habitable zone in terms of climate mode and climate evolution of Earth-like planets
Kadoya, S. and Tajika, E.
The Astrophysical Journal   (in press)    Apr 2019   [Refereed]
Ozaki, K., Reinhard, C.T., and Tajika, E.
Geobiology   17 3-11   Dec 2018   [Refereed]
Chang, Y., Goto, K., Sekine, Y., and Tajika, E.
Meteoritics & Planetary Science   53(7) 1323-1340   Apr 2018   [Refereed]
Ozaki, K., Tajika, E., Hong, P.K., Nakagawa, Y., and Reinhard, C.T.
Nature Geoscience   11 55-59   Dec 2017   [Refereed]
Tajika, E. and Harada, M.
Viva Origino   45(5) 1-5   Dec 2017   [Refereed]
Kadoya, S., and Tajika
The Astrophysical Journal Letters   825(L21) 1-5   Jul 2016   [Refereed]
Kadoya, S., and Tajika, E.
The Astrophysical Journal Letters   815(L7) 1-6   Dec 2015   [Refereed]
Kamata, S., Sugita, S., Abe, Y., Ishihara, Y., Harada, Y., Morota, T., Namiki, N., Iwata, T., Hanada, H., Araki, H., Matsumoto, K., Tajika, E., Kuramoto, K., and Nimmo F.
Icarus   250 492-503   2015   [Refereed]
Harada, M., Tajika, E., and Sekine, Y.
Earth and Planetary Science Letters   419 178-186   2015   [Refereed]
Kadoya, S. and Tajika, E.
The Astrophysical Journal   790 107-113   2014   [Refereed]
Viscoelastic deformation of lunar impact basins: Implications for heterogeneity in the deep crustal paleo-thermal state and radioactive element concentration
Kamata, S., Sugita,S., Abe, Y., Ishihara, Y., Harada, Y., Morota, T., Namiki, N., Iwata, T., Hanada, H., Araki, H., Matsumoto, K., and Tajika, E.
Journal of Geophysical Research   118 398-415   2013   [Refereed]
Long-term biogeochemical effects of atmospheric oxygen concentration and sea-level stand on oceanic redox chemistry
Ozaki, K. and Tajika, E.
Earth and Planetary Science Letters   373 129-139   2013   [Refereed]
Redox conditions in the atmosphere and shallow marine environments during the first Huronian deglaciation: insights from Os isotopes and redox-sensitive elements
Goto, G. T., Sekine Y., Suzuki, K., Tajika E., Senda, R., Nozaki, T., Tada, R., Goto, K. Yamamoto, S., Maruoka, T., Ohkouchif, N., and Ogawa, N.O.
Earth and Planetary Science Letters   376 145-154   2013   [Refereed]
High-resolution lithostratigraphy and organic carbon isotope stratigraphy of the Lower Triassic pelagic sequence in central Japan
Sakuma, H., R. Tada, M. Ikeda, Y. Kashiyama, N. Ohkouchi, N. O. Ogawa, S. Watababe, E. Tajika, and S. Yamamoto
The Island Arc   21 79-100   2012   [Refereed]
Sekine, Y. Suzuki, K.. Senda, R., Goto, K. T., Tajika, E., Tada, R., Goto, K., Yamamoto, S., Ohkouchi, N., Ogawa, N. O., and Maruoka, T.
Nature Communications   2 1-6   Nov 2011   [Refereed]
Conditions required for oceanic anoxia/euxinia: Constraints from a one-dimensional ocean biogeochemical cycle model
Ozaki, K., Tajima, S., and Tajika, E.
Earth and Planetary Science Letters   304 270-279   2011   [Refereed]
Manganese enrichment in the Gowganda Formation of the Huronian Supergroup: A highly oxidizing shallow-marine environment after the last Huronian glaciation
Sekine, Y., Tajika, E., Tada, R., Hirai, T., Goto, K.T., Kuwatani, T., Goto, K., Yamamoto, S., Tachibana, S., Isozaki, Y. and Kirschvink, J.L.
Earth and Planetary Science Letters   307 201-210   2011   [Refereed]
Impact of the evolution of carbonate ballasts on marine biogeochemistry in the Mesozoic and associated changes in energy delivery to subsurface waters
Kashiyama, Y., Ozaki, K., and Tajika, E.
Paleontological Research   15 89-99   2011   [Refereed]
Goto, K., and Tajika, E.
Journal of Geological Society of Japan   117 193-203   2011   [Refereed]
Oka, A., Tajika, E., Abe-Ouchi, A., and Kubota, L.
Climate Dynamics      Dec 2010   [Refereed]
Sekine, Y., Tajika, E., Ohkouchi, N., Ogawa, N.O., Goto, K., Tada, R., Yamamoto, S., and Kirschvink, J.L.
Geochemistry Geophysics Geosystems   11(8) Q08019   Aug 2010   [Refereed]
Numerical simulation of atmospheric and oceanic biogeochemical cycles to an episodic CO2 release event: implications for the cause of mid-Cretaceous Ocean Anoxic Event-1a
Misumi, K., Yamanaka, Y., and Tajika, E.
Earth and Planetary Science Letters   286 316-323   2009   [Refereed]
Goto, K., Tada, R., Tajika, E., Bralower T. J., Hasegawa T., and Matsui T.
Meteoritics & Planetary Science   39 1233-1247   2004
Nakamura, T., and Tajika
Geophys. Res. Lett.   30(13) 1685   2003
Tajika, E.
Earth Planet. Sci. Lett.   214(3-4) 443-453   2003
Ikeda, T., Tajika, E., and Tada, R.
Global and Planetary Change,   33 1-13   2002
Nakamura, T., and Tajika
J. Geophys. Res   107(E11)    2002
Stability and evolution of the Martian climate
Nakamura, T., and Tajika, E.
Earth, Planet and Space   53 851-859   2001
Takayama, H., Tada, R., Matsui, T., Iturralde-Vinent, M. A., Oji, T., Tajika, E., Kiyokawa, S., Garcia, D., Okada, H., Hasegawa, T., and Toyoda, K.
Sediment. Geol.   135(1/4) 295-320   2000
Yamakita, S., Kadota, N., Kato, T., Tada, R., Ogihara, S., Tajika, E., and Hamada, Y.
Jour. Geol. Soc. Japan   105(12) 895-898   1999
Tajika, E.
Earth and Planetary Science Letters   160(3/4) 695-707   1998
Tajika, E. and Sasaki, S.
Journal of Geophysical Research   101(E3) 7543-7554   1996
Journal of the Mineralogical Society of Japan   25(4) 151-161   1996
Tajika, E. and Sasaki, S.
Zishin   48(1) 119   1995
Modeling of methane bubbles released from large sea-floor area: Condition required for methane emission to the atmosphere
Yamamoto, A., Yamanaka, Y., and Tajika, E.
Earth and Planetary Science Letters   284 590-598   2009   [Refereed]


Evolution of Terrestrial Proto-CO2-Atmosphere Coupled with Thermal History of the Earth(共著)
Earth and Planetary Science Letters   113,251    1992
Evolution of the Atmosphere of the Earth(共著)
Proceedings of 25th ISAS Lunar and Planetary Symposium   25,178    1992
Thermal Evolution and Degassing History of the Earth and Venus(共著)
Proceedings of 24th ISAS Lunar and Planetary Symposium   24,211    1991
Early Evolution of Venus : Coupled Evolution of the Atmosphere and Geosphere(共著)
Proceedings of 23rd ISAS Lunar and Planetary Symposium   23,251    1990
The Evolution of Earth's Environment
Planetary Science   7(2-3) 195   1989

Books etc

The Evolution of the Terrestrial Environment(共著)
in Origin of the Earth(Oxford University Press)   1990   
Degassing History and Evolution of Volcanic Activities of Terrestrial Planets Based on Radiogenic Noble Gas Degassing Models(共著)
Volatiles in the Earth and Solar System (Farley, K. A. edit) American Institute of Physics, New York   1995   
Introduction to the Earth and Planetary Science
The Earth System Science
Evolution of the Earth

Research Grants & Projects

Study on Lon-term Stability and Evolution of the Terrestrial Environment