Study of mantle chemical evolution based on Hf isotope ratio determination using sub-nano gram Hf

2009 Fiscal Year Self-evaluation Report

• Project/Area Number: 19340162
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: Okayama University
• Principal Investigator: MAKISHIMA Akio Okayama University, 地球物質科学研究センター, 教授 (70219301)
• Project Period (FY): 2007 – 2010
• Keywords: マントル / 同位体 / 微量元素 / ハフニウム

Research Abstract

サブナノグラムのハフニウムの同位体比の測定法とブランクの低い分析法を完成し、世界で最も新鮮な試料を得ることができる岩体のひとつである、北海道・幌満かんらん岩体を、年代学的・同位体地球化学的に解析する。

Research Products

• [Journal Article] Slab decarbonation and CO_2 recycling in the Southwestern Colombian volcanic arc (2010)
  • Author(s): Marin-Ceron, M. I., Moriguti, T., Makishima, A. Nakamura, E.
  • Journal Title: Geochimica et Cosmochimca Acta 74 Pages: 1104-1121
• [Journal Article] Precise elemental and isotopic analyses in silicate samples employing ICP-MS : Application of HF solution and analytical techniques (2009)
  • Author(s): Makishima, A., Tanaka, R. Nakamura, E.
  • Journal Title: Analytical Sciences 25 Pages: 1181-1187
• [Journal Article] Comprehensive analysis for major, minor and trace element contents and Sr-Nd-Pb-Hf isotope ratios in sediment reference materials, JSd-1 and MAG-1 (2009)
  • Author(s): Nath, B. N., Makishima, A., Noordmann, J., Tanaka, R. Nakamura, E.
  • Journal Title: Geochemical Journal 43 Pages: 207-216
• [Journal Article] Highly unradiogenic lead isotope ratios from the Horoman peridotite in Japan (2008)
  • Author(s): Malaviarachchi, S. P. K., Makishima, A., Tanimoto, M., Kuritani, T. Nakamura, E.
  • Journal Title: Nature Geoscience 1 Pages: 859-863
• [Journal Article] Multiple pulses of the mantle plume : evidence from Tertiary Icelandic lavas (2008)
  • Author(s): Kitagawa, A., Kobayashi, K., Makishima, A. Nakamura, E.
  • Journal Title: Journal of Petrology 49 Pages: 1365-1396
• [Journal Article] New preconcentration technique of Zr, Nb, Mo, Hf, Ta and W employing coprecipitation with Ti compounds : its application to Lu-Hf system and sequential Pb-Sr-Nd-Sm separation (2008)
  • Author(s): Makishima, A. Nakamura, E.
  • Journal Title: Geochemical Journal 42 Pages: 199-206
• [Journal Article] Hawaiian double volcanic chain triggered by an episodic involvement of recycled material : Constraints from temporal Sr-Nd-Hf-Pb isotopic trend of the Loa-type volcanoes (2008)
  • Author(s): Tanaka, R., Makishima, A., Nakamura, E.
  • Journal Title: Earth and Planetary Science Letters 265 Pages: 450-465
• [Journal Article] Ancient recycled crust beneath the Ontong Java Plateau : isotopic evidence from the garnet clinopyroxenite xenoliths, Malaita, Solomon Islands (2007)
  • Author(s): Ishikawa, A., Kuritani, T., Makishima, A. Nakamura, E.
  • Journal Title: Earth and Planetary Science Letters 259 Pages: 134-148
• [Journal Article] Precise determination of Pb isotope ratios by simple double spike MC-ICP-MS technique without T1 addition (2007)
  • Author(s): Makishima, A., Nath, B. N. Nakamura, E.
  • Journal Title: Journal of Analytical Atomic Spectrometry 22 Pages: 407-410
• [Journal Article] Melt-peridotite reactions and fluid-metasomatism in the upper mantle, revealed from the geochemistry of peridotite and gabbro from Horoman peridotite massif, Japan
  • Author(s): Malaviarachchi, S. P. K., Makishima, A. Nakamura, E.
  • Journal Title: Journal of Petrology (in press)
• [Patent(Industrial Property Rights)] 微量元素濃縮の前処理方法 (2009)
  • Inventor(s): 牧嶋昭夫, 中村栄三
  • Industrial Property Rights Holder: 岡山大学学長
  • Industrial Property Number: 特許4362595号
  • Filing Date: 2009-08-28
• [Patent(Industrial Property Rights)] チタン試料中の微量元素を除去する方法 (2008)
  • Inventor(s): 牧嶋昭夫, 森口拓弥, 中村栄三
  • Industrial Property Rights Holder: 岡山大学学長
  • Industrial Property Number: 特許特願2008-105383
  • Acquisition Date: 2008-04-15