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Ikehara Minoru
œProfessor
œGraduate School of Integrated Arts and Sciences
œ[Personal web page]
œ[Laboratory web page]

Specialization
Paleoceanography, Organic Geochemistry

Research
I am a paleoceanographer/marine geologist who studies
the history and causes of global climate change in the Earth's past.

œPaleoceanographic change and material cycle involving the present
@and past oceans based on stable isotopes in foraminifera
@and organic geochemical tracers.

œVariations of the Kuroshio pass and intensity during the Late Quaternary.

œLate Quaternary cliamte change in the Soutehrn Ocean and Antarctica

œDevelopment and application of organic geochemical and stable
@isotopic techniques in paleoclimatology.

œCulturing planktonic foraminiferal geochemistry for paleothermometer.

œCarbon geochemistry of Archean hydrothermal sequence
@in the Pilbala,terrane, Western Austlaria.

External role
œScientific Technology Panel, Integrated Ocean Drilling Program (IODP).

œIODP section executive committee, Japan Drilling Earth Science Consortium (J-DESC).

Education
œB.Sc.: Earth Sciences, Kanazawa University, 1992.
œM.Sc.: Earth Sciences, Kanazawa University, 1994.
œD.Sc.: Geology, University of Tokyo, 1997.

Professional Memberships
œAmerican Geophysical Union
œGeological Society of Japan
œGeochemical Society of Japan
œOceanographical Society of Japan
œOrganic Geochemical Society of Japan

Selected Publications
œIkehara, M., Murayama, M., Tadai, O., Hokanishi, N., Daido, N., Kawahata, H.,
@and Yasuda, H., Late Quaternary tephrostratigraphy of two IMAGES cores taken
@from the off Shikoku in the Northwest Pacific,
@Fossils, 79, pp. 60-76, 2006. (in Japanese with Englich abstract)

œKiyokawa, S., Ito, T., Ikehara, M., and Kitajima, F.,
@Middle Archean volcano-hydrothermal sequence:
@bacterial-bearing 3.2-Ga Dixon Island Formation,
@coastal Pilbara terrane, Australia, GSA Bulletin, 118, 3-22, 2006.

œSakamoto, T., M. Ikehara, K. Aoki, K. Iijima, N. Kimura, T. Nakatsuka,
@and M. Wakatsuchi Ice-rafted debris (IRD) based sea-ice expansion
@events during the past 100 kyrs in the Okhotsk Sea,
@Deep Sea Research II, 52, 2275-2301, 2005.
@
œSeki, O., M. Ikehara, K. Kawamura, T. Nakatsuka, H. Narita, T. Sakamoto and K.
@Ohnishi, Reconstruction of plaeoproductivity in
@the Sea of Okhotsk over the last 30 kyrs,
@Paleoceanography, Vol. 19, doi: 10.1029/2002PA000808, 2004.

œSeki, O., K. Kawamura, M. Ikehara, T. Nakatsuka, T. Oba,
@Variation of alkenone sea surface temperature in the Sea
@of Okhotsk over the last 85 kyrs,
@Organic Geochemistry, 35, 347-354, 2004.

œKimoto, K., Takaoka, H., Oda, M., Ikehara, M., Matsuoka,
@H., Oba, T., and Taira, A., Carbonate dissolution and planktonic
@foraminiferal assemblages observed in three piston cores collected above
@the lysocline in the western equatorial Pacific,
@Marine Micropaleontology, 47, 227-251, 2003.

œIkehara, M., Takemoto, N., Ohkouchi, N., and Kawamura, K.,
@Latitudinal distributions of polycyclic aromatic hydrocarbons
@in the Southern Ocean surface sediments, Geochemical Journal, 35,
@73-84, 2001. (in Japanese with Englich abstract)

œIkehara, M., K. Kawamura, N. Ohkouchi, M. Murayama, T. Nakamura, and A.
@Taira, Variations of terrestrial input and marine productivity
@in the Southern Ocean (48ĄS) during the last two deglaciations,
@Paleoceanography, 15, 170-180, 2000.

œIkehara, M., K. Kawamura, N. Ohkouchi and A. Taira,
@Organic geochemistry of greenish clay and organic rich sediments
@since early Miocene from Hole 985A, Norway Basin,
@Proceedings of the Ocean Drilling Program, Scientific Results, 162, 209-216, 1999.

œIkehara, M., K. Kawamura, N. Ohkouchi, K. Kimoto, M. Murayama,
@T. Nakamura, T. Oba, and A. Taira, Alkenone sea surface temperature
@in the Southern Ocean for the last two deglaciations,
@Geophys. Res. Lett., 24, 679-682, 1997.