Akira Ishikawa

J-GLOBAL         Last updated: Feb 16, 2019 at 10:53
Akira Ishikawa
The University of Tokyo
Graduate School of Arts and Sciences Department of Multi-Disciplinary Sciences,General Systems Sciences
Job title
Research Associate
Doctor of Science(Tokyo Institute of Technology), Master of Sceince(Tokyo Institute of Technology)
Other affiliation

Research Areas


Academic & Professional Experience

Apr 2018
Associate Professor, Department of Earth and Planetary Sciences, Tokyo Institute of Technology
Apr 2010
Mar 2018
Research Associate, The University of Tokyo
Jul 2008
Mar 2010
Research Scientist, JAMSTEC/IFREE
Apr 2007
Jun 2008
JSPS Postdoctoral Researcher, Durham University
Apr 2004
Mar 2007
JSPS Postdoctoral Researcher, Okayama University


Apr 1999
Mar 2002
Tokyo Institute of Technology

Published Papers

K-rich hydrous mantle lithosphere beneath the Ontong Java Plateau: Significance for the genesis of oceanic basalts and Archean continents
K.A.Smart, S.Tappe, A.Ishikawa, J.A.Pfänder, A.Stracke
Geochimica et Cosmochimica Acta   248(1) 311-342   Mar 2019   [Refereed]
Enhanced flux of extraterrestrial 3He across the Permian–Triassic boundary
Tetsuji Onoue, Naoto Takahata, Mitsutaka Miura, Honami Sato, Akira Ishikawa, Katsuhito Soda, Yuji Sano and Yukio Isozaki
Progress in Earth and Planetary Science   6:18 DOI: 10.1186/s40645-019-0267-0   Feb 2019   [Refereed]
Late veneer and mantle evolution: constraints from siderophile element geochemistry
Akira Ishikawa
40(6) 324-331   Jun 2018
Ishikawa A, Suzuki K, Collerson K. D, Liu J. G, Pearson D. G, Komiya T.
Geochimica Et Cosmochimica Acta   216 286-311   2017   [Refereed]
Akizawa N, Miyake A, Ishikawa A, Tamura A, Terada Y, Uesugi K, Takeuchi A, Arai S, Tanaka C, Igami Y, Suzuki K, Kogiso T.
Chemical Geology   475 87-104   2017   [Refereed]
Hanyu T, Tejada M. L. G, Shimizu K, Ishizuka O, Fujii T, Kimura J. I, Chang Q, Senda R, Miyazaki T, Hirahara Y, Vaglarov B. S, Goto K. T, Ishikawa A.
Lithos   294 87-96   2017   [Refereed]
Journal of Geography (Chigaku Zasshi)   124(3) 515-523   Jun 2015   [Refereed]
 The Leucite Hills province is an isolated volcanic field of 14 lava-capped mesas and buttes, creating an impressive landscape in southwestern Wyoming. The 3.0-0.89 Ma lavas form exotic rocks described as lamproites, which are regarded as the...
Senda Ryoko, Ishikawa Akira
JAMSTEC Report of Research and Development   18(0) 17-28   2014   [Refereed]
Blank level during the analytical process is critical for the determination of Os isotope ratios (187Os/188Os) both for high precision and accuracy. Previously, the blank level in the PGE laboratory was not good enough to mea...
SENDA Ryoko, ISHIKAWA Akira, SUZUKI Katsuhiko
Japanese Magazine of Mineralogical and Petrological Sciences   41(5) 211-221   Sep 2012   [Refereed]
  Osmium isotope ratios of abyssal peridotites are of great interest to geoscientists because they provide direct information about the present-day Earth's mantle. This is based on the fact that Os is a highly siderophile and compatible ...
Japanese Magazine of Mineralogical and Petrological Sciences   41(5) 203-210   Sep 2012   [Refereed]
  Three enigmas of highly siderophile elements (HSE) in Earth's mantle, manifested by recent advances in HSE geochemistry of mantle peridotites, are reviewed in this paper. They are (1) the apparent overabundance of the HSE in the Earth'...
Akira Ishikawa
41 203-210   Aug 2012   [Refereed]
Ishikawa, A., Pearson, D.G., Dale, C.W.
Earth and Planetary Science Letters   301(1-2) 159-170   Jan 2011   [Refereed]
Komiya T, Yamamoto S, Aoki S, Koshida K, Shimojo M, Sawaki Y, Aoki K, Sakata S, Yokoyama T. D, Maki K, Ishikawa A, Hirata T, Collerson K. D.
Geoscience Frontiers   8(2) 355-385   2017   [Refereed]
Liu Jingao, Touboul M, Ishikawa A, Walker R. J, Pearson D. G.
Earth and Planetary Science Letters   448 13-23   2016   [Refereed]
Janney, P.E., Shirey, S.B., Carlson, R.W., Pearson, D.G., Bell, D.R., Le Roex, A.P., Ishikawa, A., Nixon, P.H., Boyd, F.R
Journal of Petrology   51(9) 1849-1890   2010   [Refereed]
Koshida K, Ishikawa A, Iwamori H, Komiya T.
Precambrian Research   283 190-207   2016   [Refereed]
Kadarusman, A., Maruyama, S., Kaneko, Y., Ota, T., Ishikawa, A., Sopaheluwakan, J., Omori, S.
Gondwana Research   18(1) 189-204   2010   [Refereed]
Shimojo M, Yamamoto S, Sakata S, Yokoyama T. D, Maki K, Sawaki Y, Ishikawa A, Aoki K, Aoki S, Koshida K, Tashiro T, Hirata T, Collerson K. D, Komiya T.
Precambrian Research   278 218-243   2016   [Refereed]
Ota, T., Utsunomiya, A., Uchio, Y., Isozaki, Y., Buslov, M.M., Ishikawa, A., Maruyama, S., Kitajima, K., Kaneko, Y., Yamamoto, H., Katayama, I.
JOURNAL OF ASIAN EARTH SCIENCES   30(5-6) 666-695   Jul 2007   [Refereed]
Riches A. J. V, Ickert R. B, Pearson D. G, Stern R. A, Jackson S. E, Ishikawa A, Kjarsgaard B. A, Gurney J. J.
Geochimica Et Cosmochimica Acta   174 345-359   2016   [Refereed]
Ishikawa A, Pearson DG, Dale CW
Geochimica Et Cosmochimica Acta   71(15) A430   2007   [Refereed]
Ishikawa, A., Kuritani, T., Makishima, A., Nakamura, E.
Earth and Planetary Science Letters   259(1-2) 134-148   2007   [Refereed]
Tejada M. L. G, Hanyu T, Ishikawa A, Senda R, Suzuki K, Fitton G, Williams R.
Geochemistry Geophysics Geosystems   16(2) 486-504   2015   [Refereed]
Kaneko, Y., Maruyama, S., Kadarusman, A., Ota, T., Ishikawa, M., Tsujimori, T., Ishikawa, A., Okamoto K.
Gondwana Research   11(1-2) 218-233   2007   [Refereed]
Komiya T, Yamamoto S, Aoki S, Sawaki Y, Ishikawa A, Tashiro T, Koshida K, Shimojo M, Aoki K, Collerson K. D.
Tectonophysics   662 40-66   2015   [Refereed]
Zhang, H.F., Nakamura, E., Zhang, J. Ishikawa, A.
CHINESE SCIENCE BULLETIN   51(15) 1869-1876   Aug 2006   [Refereed]
Ishikawa, A., Kaneko, Y., Kadarusman, A., Ota, T.
Gondwana Research   11(1-2) 200-217   2007   [Refereed]
Demouchy S, Ishikawa A, Tommasi A, Alard O, Keshav S.
Lithos   212 189-201   2015   [Refereed]
Ishikawa, A., Nakamura, E., Mahoney, J.J.
Geology   33(5) 393-396   2005   [Refereed]
Ishikawa Akira, Senda Ryoko, Suzuki Katsuhiko, Dale Christopher W, Meisel Thomas
Chemical Geology   384 27-46   2014   [Refereed]
Terabayashi, M., Okamoto, K., Yamamoto, H., Kaneko, Y., Ota, T., Maruyama, S., Katayama, I., Komiya, T., Ishikawa, A., Anma, R., Ozawa, H., Windley, B.F., Liou, J.G.
International Geology Review   47(10) 1058-1073   2005   [Refereed]
Tommasi Andrea, Ishikawa Akira
Geochemistry Geophysics Geosystems   15(11) 4547-4569   2014   [Refereed]
Kadarusman, A., Miyashita, S., Maruyama, S., Parkinson, C.D., Ishikawa, A.
Tectonophysics   392(1-4) 55-83   2004   [Refereed]
Tejada M. L. G, Suzuki K, Hanyu T, Mahoney J. J, Ishikawa A, Tatsumi Y, Chang Q, Nakai S.
Earth and Planetary Science Letters   377 84-96   2013   [Refereed]
Ishikawa A, Nakamura E
Geochimica Et Cosmochimica Acta   68(11) A584   2004   [Refereed]
Ishikawa, A., Maruyama, S., Komiya, T.
Journal of Petrology   45(10) 2011-2044   2004   [Refereed]
Sano, T. Shimizu, K.; Ishikawa, A.; et al.
Geochemistry Geophysics Geosystems   13 25   Aug 2012   [Refereed]
ISHIKAWA Akira, KANEKO Yoshiyuki, OTA Tsutomu, ISOZAKI Yukio
Journal of Geography (Chigaku Zasshi)   120(1) 52-64   Jan 2011   [Refereed]
 The western Pacific region, where the Eurasia, Australia, and Pacific plates currently interact, has been recognized as an important site for constraining the origins and emplacement of ophiolites (particularly for island-arc or supra-subduction ...
Ishikawa A, Pearson DG, Dale CW
Geochimica Et Cosmochimica Acta   73(13) A572   2009   [Refereed]
Ishikawa A, Nakamura E
Geochimica Et Cosmochimica Acta   67(18) A175   2003   [Refereed]

Conference Activities & Talks

Geochemistry of seamount volcanic rocks, eastern margin of the Ontong Java Plateau
Maria Luisa G Tejada, Takashi Sano, Takeshi Hanyu, Jun-Ichi Kimura, Takashi Miyazaki, Qing Chang, Bogdan Vaglarov, Anthony A.P. Koppers, Akira Ishikawa, Shoka Shimizu, Kenichiro Tani, Masao Nakanishi
American Geophysical Union 2018 Fall Meeting   14 Dec 2018   
Remelting of the fossil Ontong Java Plateau plume head, with clues to Archean continent formation
Katie A Smart, Sebastian Tappe, Akira Ishikawa, Jorg Pfander, Andreas Stracke
American Geophysical Union 2018 Fall Meeting   14 Dec 2018   
Reassessment of chemical separation techniques for isotope analysis of pg-level Os with N-TIMS
Nao Nakanishi, Tetsuya Yokoyama, Akira Ishikawa
American Geophysical Union 2018 Fall Meeting   14 Dec 2018   
Extraterrestrial Helium-3 Flux Across The Permian/Triassic Boundary
Tetsuji Onoue, Naoto Takahata, Mitsutaka Miura, Honami Sato, Akira Ishikawa, Katsuhito Soda, Yuji Sano, Yukio Isozaki
GSA Annual Meeting   6 Nov 2018   
Koshida Keiko, Stefanov Vaglarov Bogdan, Komiya Tsuyoshi, Ishikawa Akira, Yokoyama Tetsuya, Kagami Saya, Fukai Ryota, Suzuki Katsuhiko, Kimura Jun―Ichi, Chang Qing, Miyazaki Takashi
Abstracts of Annual Meeting of the Geochemical Society of Japan   11 Sep 2018   
Positive Zr Anomaly in Archean-Paleoproterozoic Sandstones and its Significance in Continental Growth
Hikaru Sawada, Yukio Isozaki, Akira Ishikawa
Goldschmidt2018   15 Aug 2018   
A Recycling of Subducted Crust in Archean Mantle Inferred from S-Mif of Belingwe Komatiite
Yusuke Kubota, Yuichiro Ueno, Kenji Shimizu, Fumihiro Matsuura, Akira Ishikawa
Goldschmidt2018   14 Aug 2018   
Petrographical and geochemical characteristics of mantle xenoliths from Tahiti and Moorea Islands: An insight into oceanic lithosphere accretion
Norikatsu Akizawa, Akira Ishikawa, Tetsu Kogiso
XXII Meeting of the International Mineralogical Association   14 Aug 2018   
A simple determination of major- and trace-element composition for peridotite by ICP-MS: an application of acid-digested fused-glass bead
23 May 2018   
Platinum group elements and Re-Os isotopes in the K-Pg transition of the Chicxulub peak-ring rocks
佐藤 峰南, 石川 晃, Ferrière Ludovic, Morgan Joanna, Gulick Sean, IODP-ICDP Expedition 364 Scientists
22 May 2018   


Ishikawa, A., Kuritani, T., Makishima, A., Nakamura, E.   The Others   Mar 2007
A rare quartz-garnet clinopyroxenite xenolith recovered from the island of Malaita in the southwest Pacific on the Ontong Java Plateau has lower 206Pb/204Pb-143Nd/144Nd and higher 87Sr/86Sr-207Pb/204Pb ratios than most oceanic basalts, providing t...