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Geochemical investigation on core-mantle interactions

Research Project

Project/Area Number 17340167
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Geochemistry/Astrochemistry
Research InstitutionThe University of Tokyo

Principal Investigator

NAKAI Shun'ichi  The University of Tokyo, Earthquake Research Institute, Asspciate Professor (50188869)

Co-Investigator(Kenkyū-buntansha) HANYU Takeshi  Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, 地球内部変動研究センター, Senior Researcher (50359197)
Project Period (FY) 2005 – 2008
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥10,230,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥930,000)
Fiscal Year 2007: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2006: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2005: ¥3,200,000 (Direct Cost: ¥3,200,000)
Keywordscore-mantle interaction / tungsten isotope tracer / hafnium-182 / ocean island basalt / ICP-mass spectrometer / extinct radioactive nuclide / superplume / コア-マントル相互作用 / 銀同位体比 / 鉛同位体比 / マントルプリューム
Research Abstract

We investigated if there exists geochemical evidence which shows core-mantle interactions in the samples of ocean island basalts related to mantle plumes from deep in the mantle. We used tungsten isotope tracers (182W/183W) which shows different value between core and mantle materials. We developed tungsten purification method using anion-chromatography. The developed method has been applied to the samples of oceanic island basalts, from such as Samoa and St. Helena and Mid-Oceanic Ridge basalts.
Before the analyses we investigated precision of tungsten isotope analyses and found that 182W/183W ratio can be analyzed with a precision of 0.3 epsilon unit. Tungsten abundances as well as isotopic composition were measured.
Anlyses of more than twenty samples show no tungsten isotope anomaly. Considering (1) tungsten abundances in the source of the basaltic estimated tungsten abundances in the samples, (2) precision of tungsten isotopic analyses, (3) tungsten abundance of the core, and (4) tungsten isotopic composition of the core, put tight constraints on the contribution of core material into the source mantle of the analyzed samples was less than 0.5%. In addition, the Earth's mantle is homogeneous regarding tungsten isotopic compositions.
During the study period, we published a paper on chemical purification method for tungsten isotopic analyses and a paper on the tungsten isotopic compositions of the samples from south Pacific samples.

Report

(4 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (69 results)

All 2009 2008 2007 2006 2005 Other

All Journal Article (52 results) (of which Peer Reviewed: 23 results) Presentation (17 results)

  • [Journal Article] W isotope compositions of oceanic islands basalts from French Polynesia and their meaning for core-mantle interaction2009

    • Author(s)
      Takamasa, A., Nakai, S., Sahoo, Y., Hanyu, T., Tatsumi, Y.
    • Journal Title

      Chemical Geology 260

      Pages: 37-46

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Intergranular trace elements in mantle xenoliths from Russian Far East : An example for mantle metasomatism by hydrous melt.2009

    • Author(s)
      Yamamoto, J. Nakai, S., et al.
    • Journal Title

      The Island Arc 18

      Pages: 225-241

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Attempt to determine U-Th ages of calcite veins in the Nojima fault zone, Japan.2008

    • Author(s)
      Watanabe, Y., Nakai, S., Lin, A.
    • Journal Title

      Geochem. J 42

      Pages: 507-513

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] 238U-230Th radioactive disequilibrium in the northern Izu arc : (230Th/232Th) in the sub-arc mantle2008

    • Author(s)
      Fukuda, S., Nakai, S., Niihori, K., Tsukui, M., Nakada, S., Fujii, T., Tani, K
    • Journal Title

      Geochem. J 42

      Pages: 461-479

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] U-Th dating of carbonate nodules from methane seeps off Joetsu, Eastern Margin of Japan Sea.2008

    • Author(s)
      Watanabe, Y., Nakai, S., Hiruta, A., Matsumoto, R., Yoshida, K.
    • Journal Title

      Earth Planet. Sci. Lett. 272

      Pages: 89-96

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Common origin of plagioclase in last three eruptions of Unzen volcano, Japan.2008

    • Author(s)
      Nakai, S., Maeda, Y., Nakada, S.
    • Journal Title

      Jour. Volcan. Geotherm. Res. 175

      Pages: 194-188

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Determination of 9Be in geological standard samples, JA-2 and JB-2, and of ^9Be and ^<10>Be in a basaltic rock samples for evaluation of uncertainty involved in ^<10>Be/^9Be ratio measurements2008

    • Author(s)
      Gotan, K., Nakai, S., Matsuzaki, H.
    • Journal Title

      Geochemical Journal 42

      Pages: 305-308

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Searching and detecting earthquake geochemical precursors in CO2-rich groundwaters from Galicia, Spain.2008

    • Author(s)
      Perez, N. M., Hernandez, P. A., Igarashi, G., Trujillo, I., Nakai, S., et al.
    • Journal Title

      Geochemical Journal. 42

      Pages: 75-83

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] U-Pb age determinations for seven standard zircons coupled with frequency quintupled Nd-YAG (λ=213 nm)laser ablation system : Evaluation of the efficacy of calibrating LA-ICP-MS zircon analyses with a NIST glass reference material.2008

    • Author(s)
      Orihashi, Y., Nakai, S., Hirata, T.
    • Journal Title

      Resource Geology 58

      Pages: 101-123

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] U-Pb age determinations for seven standard zircons coupled with frequency quintupled Nd-YAG (λ= 213 nm) laser ablation system : Evaluation of the efficacy of calibrating LA-ICP-MS zircon analyses with a NIST glass reference material2008

    • Author(s)
      Orihashi, Y., Nakai, S., Hirata, T.
    • Journal Title

      Resource Geology 58

      Pages: 101-123

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Searching and detecting earthquake geochemical precursors in CO2-rich groundwaters from Galicia, Spain2008

    • Author(s)
      Perez, N. M., Hernandez, P. A., Igarashi, G, Trujillo, I., Nakai, S., Sumino, H., Wakita, H.
    • Journal Title

      Geochemical Journal 42

      Pages: 75-83

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Determination of _9Be in geological standard samples, JA-2 and JB-2, and of ^9Be and ^<10>Be in a basaltic rock samples for evaluation of uncertainty involved in ^<10>Be/^9Be ratio measurements2008

    • Author(s)
      Gotan, K., Nakai, S., Matsuzaki, H.
    • Journal Title

      Geochemical Journal 42

      Pages: 305-308

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Common origin of plagioclase in last three eruptions of Unzen volcano, Japan2008

    • Author(s)
      Nakai, S., Maeda, Y., Nakada, S.
    • Journal Title

      J. Volcanol. Geotherm. Res. 175

      Pages: 181-188

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] U-Th dating of carbonate nodules from methane seeps off Joetsu, Eastern Margin of Japan Sea2008

    • Author(s)
      Watanabe, Y., Nakai, S., Hiruta, A., Matsumoto, R., Yoshida, K.
    • Journal Title

      Earth Planet. Sci. Lett. 272

      Pages: 89-96

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] 238U-230Th radioactive disequilibrium in the northern Izu arc : (230Th/232Th) in the sub-arc mantle2008

    • Author(s)
      Fukuda, S., Nakai, S., Niihori, K., Tsukui, M., Nakada, S., Fujii, T., Tani, K.
    • Journal Title

      Geochem. J. 42

      Pages: 461-479

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Attempt to determine U-Th ages of calcite veins in the Nojima fault zone, Japan2008

    • Author(s)
      Watanabe, Y., Nakai, S., Lin, A.
    • Journal Title

      Geochem. J. 42

      Pages: 507-513

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] U-Th dating of carbonate nodules from methane seeps off Joetsu, Eastern Margin of Japan Sea2008

    • Author(s)
      Watanabe, Y., Nakai, S., Hiruta, A., Matsumoto, R, Yoshida, K.
    • Journal Title

      Earth Planet. Sci. Lett. 272

      Pages: 89-96

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Common origin of plagioclase in last three eruptions of Unzen volcano, Japan2008

    • Author(s)
      Nakai, S., Maeda, Y., Nakada, S.
    • Journal Title

      Jour. Volcan. Geotherm. Res. 175

      Pages: 194-188

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Allanite-(Ce) as an indicator of the origin of granitic rocks in Japan : importance of Sr-Nd isotopic and chemical composition2007

    • Author(s)
      Hoshino, M., Kimata, M., Arakawa, Y., Shimizu, M., Nakai, S.
    • Journal Title

      The Canadian Mineralogist 45

      Pages: 1329-1336

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] 紀伊半島中新生珪長質火成岩類の全岩組成の広域的変化2007

    • Author(s)
      新正裕尚, 折橋裕二, 和田穣隆, 角井朝昭, 中井俊一
    • Journal Title

      地質学雑誌 175

      Pages: 310-325

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Isotope systematics of Li, Sr, Nd, and volatiles in Indian Ocean MORBs of the Rodrigues Triple Junction : constraints on the origin of the DUPAL anomaly2007

    • Author(s)
      Nishio, Y., Nakai, S., Ishii, T., Sano, Y.
    • Journal Title

      Geochim. Cosmochim. Acta 71

      Pages: 745-759

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary 2006 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Isotope systematics of Li, Sr, Nd, and volatiles in Indian Ocean MORBs of the Rodrigues Triple Junction: constraints on the origin of the DUPAL anomaly2007

    • Author(s)
      Nishio, Y., Nakai, S., Ishii, T., Sano, Y.
    • Journal Title

      Geochim. Cosmochim. Acta 71

      Pages: 745-759

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Geochemistry of eclogites from the Dabie-Sulu terrane, eastern China : New insights into protoliths and trace element behavior during UHP metamorphism2007

    • Author(s)
      Tang, H. F., Liu, C. Q., Nakai, S., Orihashi, Y.
    • Journal Title

      Lithos 95 (3-4)

      Pages: 441-457

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Allanite-(Ce) as an indicator of the origin of granitic rocks in Japan: importance of Sr-Nd isotopic and chemical composition2007

    • Author(s)
      Hoshino, M., Kimata, M., Arakawa, Y., Shimizu, M., Nakai, S.
    • Journal Title

      The Canadian Mineralogist 45

      Pages: 1329-1336

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Element partitioning between transition-zone minerals and ultramafic melt under hydrous conditions.2006

    • Author(s)
      Mibe, K., Orihashi, Y., Nakai, S., Fujii, T.
    • Journal Title

      Geophys. Res. Lett. 33

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Contribution of slab melting and slab dehydration to magmatism in the NE Japan arc for the last 25 Myr : Constraints from geochemistry.2006

    • Author(s)
      Hanyu, T., Tatsumi, Y., Nakai, S., Chang, Q., Miyazaki, T., Sato, K., Tani, K., Shibata, T., Yoshida, T.
    • Journal Title

      Geochem. Geophys. Geosyst. 7

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Accurate U-Th Radioactive Disequilibrium Analyses of Carbonate Rock Samples Using Commercially Available U and Th Reagents and Multi-Collector ICP-MS.2006

    • Author(s)
      Watanabe, Y., Nakai, S.
    • Journal Title

      Microchim Acta. 156

      Pages: 289-295

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] U-Th radioactive disequilibrium analyses for JCp-1, coral reference distributed by the Geological Survey of Japan2006

    • Author(s)
      Watanabe, Y., Nakai, S.
    • Journal Title

      Geochem. J. 40

      Pages: 537-541

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Application of X-ray absorption near-edge structure (XANES) using bent crystal analyzer to speciation of trace Os in iron meteorites.2006

    • Author(s)
      Takahashi, Y., Uruga, T. Tanida, H. Terada, Y. Nakai, S., Shimizu, H.
    • Journal Title

      Anal. Chim. Acta 558

      Pages: 332-336

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Modified ion exchange separation for tungsten isotopic measurements from kimberlite samples using multi-collector inductively coupled plasma mass spectrometry.2006

    • Author(s)
      Sahoo, Y., Nakai, S., Ali, A.
    • Journal Title

      Analyst. 131

      Pages: 434-439

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Modified ion exchange separation for tungsten isotopic measurements from kimberlite samples using multi-collector inductively coupled plasma mass spectrometry2006

    • Author(s)
      Sahoo, Y, Nakai, S., Ali, A.
    • Journal Title

      Analyst 131

      Pages: 434-439

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary 2005 Annual Research Report
  • [Journal Article] Application of X-ray absorption near-edge structure (XANES) using bent crystal analyzer to speciation of trace Os in iron meteorites2006

    • Author(s)
      Takahashi, Y., Uruga, T. Tanida, H. Terada, Y. Nakai, S., Shimizu, H.
    • Journal Title

      Anal. Chim. Acta 558

      Pages: 332-336

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] U-Th radioactive disequilibrium analyses for JCp-1, coral reference distributed by the Geological Survey of Japan2006

    • Author(s)
      Watanabe, Y., Nakai, S.
    • Journal Title

      Geochem. J. 40(5)

      Pages: 537-541

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Accurate U-Th Radioactive Disequilibrium Analyses of Carbonate Rock Samples Using Commercially Available U and Th Reagents and Multi-Collector ICP-MS2006

    • Author(s)
      Watanabe, Y., Nakai, S.
    • Journal Title

      Microchim Acta 156 (3-4)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Contribution of slab melting and slab dehydration to magmatism in the NE Japan arc for the last 25 Myr : Constraints from geochemistry2006

    • Author(s)
      Hanyu, T., Tatsumi, Y., Nakai, S., Chang, Q., Miyazaki, T., Sato, K., Tani, K., Shibata, T., Yoshida, T.
    • Journal Title

      Geochem. Geophys. Geosyst. 7

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Element partitioning between transition-zone minerals and ultramafic melt under hydrous conditions2006

    • Author(s)
      Mibe, K., Orihashi, Y., Nakai, S., Fujii, T.
    • Journal Title

      Geophys. Res. Lett. 33

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary 2006 Annual Research Report
  • [Journal Article] Modified ion exchange separation for tungsten isotopic measurements from kimberlite samples using multi-collector inductively coupled plasma mass spectrometry2006

    • Author(s)
      Sahoo, Y., Nakai, S., Ali, A.
    • Journal Title

      Analyst 131

      Pages: 434-439

    • Related Report
      2006 Annual Research Report
  • [Journal Article] U-Th radioactive disequilibrium analyses for JCp-1, coral reference distributed by the Geological Survey of Japan2006

    • Author(s)
      Watanabe, Y., Nakai, S.
    • Journal Title

      Geochem.J. 40(5)

      Pages: 537-541

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Accurate U-Th Radioactive Disequilibrium Analyses of Carbonate Rock Samples Using Commercially Available U and Th Reagents and Multi-Collector ICP-MS2006

    • Author(s)
      Watanabe, Y., Nakai, S.
    • Journal Title

      Microchim Acta 156(3-4)

      Pages: 289-295

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Contribution of slab melting and slabdehydration to magmatism in the NE Japan arc for the last 25 Myr : Constraints from geochemistry2006

    • Author(s)
      Hanyu, T., Tatsumi, Y., Nakai, S., et al.
    • Journal Title

      Geochem. Geophys. Geosyst. 7

    • Related Report
      2006 Annual Research Report
  • [Journal Article] U-Th radioactive disequilibrium analyses for JCp-1,coral reference distributed by the Geological Survey of Japan2006

    • Author(s)
      Watanabe, Y., Nakai, S.
    • Journal Title

      Geochem.J. 40(in press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Deep-sea coral geochemistry : Implication for the vital effect.2005

    • Author(s)
      Shirai, K., Kusakabe, M., Nakai, S., Ishii, T., Watanabe, T., Hiyagon, H., Sano, Y.
    • Journal Title

      Chem. Geol. 224

      Pages: 212-221

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Hafnium isotope ratios of nine GSJ reference samples.2005

    • Author(s)
      Hanyu, T., Nakai, S., Tatuta, R.
    • Journal Title

      Geochem. J. 39

      Pages: 83-90

    • NAID

      10015512889

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Lithium, strontium, and neodymium isotopic compositions of oceanic island basalts in the Polynesian region : constraints on a Polynesian HIMU origin.2005

    • Author(s)
      Nishio, Y., Nakai, S., Kogiso, T., Barsczus, H. G.
    • Journal Title

      Geochem. J. 39

      Pages: 91-103

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Lithium, strontium, and neodymium isotopic compositions of oceanic island basalts in the Polynesian region : constraints on a Polynesian HIMU origin2005

    • Author(s)
      Nishio, Y., Nakai, S., Kogiso, T., Barsczus, H. G.
    • Journal Title

      Geochemical Journal 39

      Pages: 91-103

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Hafnium isotope ratios of nine GSJ reference samples2005

    • Author(s)
      Hanyu, T., Nakai, S., Tatuta, R.
    • Journal Title

      39

      Pages: 83-90

    • NAID

      10015512889

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Deep-sea coral geochemistry : Implication for the vital effect2005

    • Author(s)
      Shirai, K., Kusakabe, M., Nakai, S., Ishii, T., Watanabe, T., Hiyagon, H., Sano, Y.
    • Journal Title

      Chem. Geol. 224

      Pages: 212-222

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Lithium, strontium, and neodymium isotopic compositions of oceanic island basalts in the Polynesian region : constraints in a Polynesian HIMU origin2005

    • Author(s)
      Nishio, Y., Nakai, S., Kogiso, T., Barsczus, H.G.
    • Journal Title

      Geochemical Journal 39

      Pages: 91-103

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Hafnium isotope ratios of nine GSJ reference samples2005

    • Author(s)
      Hanyu, T., Nakai, S., Tatuta, R.
    • Journal Title

      Geochemical Journal 39

      Pages: 83-90

    • NAID

      10015512889

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Deep-sea coral geochemistry : Implication for the vital effect2005

    • Author(s)
      Shirai, K., Kusakabe, M., Nakai, S., Ishii, T., Watanabe, T., Hiyagon, H., Sano, Y.
    • Journal Title

      Chem.Geol. 224

      Pages: 212-222

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Prikhod'ko, V. S. and Arai, S. Intergranular trace elements in mantle xenoliths from Russian Far East : An example for mantle metasomatism by hydrous melt

    • Author(s)
      Yamamoto, J. Nakai, S., Nisimura, K., Kaneoka, I., Kagi, H., Sato, K. Okumura, T.
    • Journal Title

      The Island Arc (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] W isotope compositions of oceanic islands basalts from French Polynesia and their meaning for core-mantle interaction

    • Author(s)
      Takamasa, A., Nakai, S., Sahoo, Y., Hanyu, T., Tatsumi, Y.
    • Journal Title

      Chemical Geology 2009(印刷中(掲載確定))

    • Related Report
      2007 Annual Research Report
  • [Presentation] サモア・セントヘレナ火山試料のタングステン濃度と同位体比2008

    • Author(s)
      賞雅朝子, 中井俊一, Sahoo Yu Vin, 羽生毅, 川畑博
    • Organizer
      地球惑星科学連合2008年大会
    • Place of Presentation
      幕張メッセ国際会議場
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 地球マントルのタングステン同位体比2008

    • Author(s)
      賞雅朝子, Sahoo Yu Vin, 中井俊一, 熊谷英憲, 海野進
    • Organizer
      地球惑星科学連合2008年大会
    • Place of Presentation
      幕張メッセ国際会議場
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] W isotope study of natrocarbonatites from Oldoinyo Lengai, Tanzania2008

    • Author(s)
      A. ALI, S. NAKAI, K. BELL, Y. SAHOO
    • Organizer
      18th Annual VM Goldschmidt Conference
    • Place of Presentation
      Vancouver, Canada
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Tungsten isotopic investigation of Eoarchean terrestrial rocks with implications for mantle evolution2008

    • Author(s)
      T. IIZUKA, S. NAKAI, Y. V. SAHOO, T. HIRATA, A. TAKAMASA, S. MARUYAMA
    • Organizer
      18th Annual VM Goldschmidt Conference
    • Place of Presentation
      Vancouver, Canada
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] W isotope compositions and concentration of oceanic island basalts2008

    • Author(s)
      A. Takamasa, S. Nakai, Y. V. Sahoo, T. Hanyu, H. Kawabata, Y. Tatsumi
    • Organizer
      18th Annual VM Goldschmidt Conference
    • Place of Presentation
      Vancouver, Canada
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Tungsten Isotopic composition in Earth's rock samples : Constrains on the mantle evolution2008

    • Author(s)
      賞雅朝子, 中井俊一, Sahoo Yu Vin, 羽生毅, 川畑博, 谷水雅治
    • Organizer
      2008年度日本地球化学会第55回年会
    • Place of Presentation
      東京大学駒場キャンパス
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] フォルステライト多結晶体におけるPt固溶度と拡散 : コア-マントル相互作用の素過程2008

    • Author(s)
      賞雅朝子, 平賀毅彦, 中井俊一, 小泉早苗, 大橋直樹, 佐野聡
    • Organizer
      2008年度日本地球化学会第55回年会、東京
    • Place of Presentation
      東京大学駒場キャンパス
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Investigations on core-mantle interaction with a tungsten isotopic tracer.2007

    • Author(s)
      賞雅朝子, 中井俊一, Sahoo Yu Vin, 羽生毅, Tejada Marissa
    • Organizer
      地球惑星科学連合2007年大会
    • Place of Presentation
      幕張メッセ国際会議場
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 海洋島玄武岩と海台試料のタングステン濃度と同位体比の地球化学2007

    • Author(s)
      賞雅朝子, 中井俊一, Sahoo Yu Vin, 羽生毅, Tejada Marissa, 巽好幸, 佐野貴司
    • Organizer
      2007年度日本地球化学会第54回年会
    • Place of Presentation
      岡山大学
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] タングステン濃度とタングステン同位体比の地球化学的研究2007

    • Author(s)
      賞雅朝子, 中井俊一, Sahoo Yu Vin, 熊谷英憲, 海野進
    • Organizer
      Inter Ridge Japan 研究集会
    • Place of Presentation
      東京大学海洋研究所
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] サンプル粉砕処理におけるコンタミネーション-微量元素組成への影響2007

    • Author(s)
      賞雅朝子, 平賀岳彦, 安田敬, 中井俊一
    • Organizer
      質量分析学会同位体比部会
    • Place of Presentation
      北海道定山渓
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] グラムレベル試料のタングステン分離方法の開発2007

    • Author(s)
      賞雅朝子, Sahoo Yu Vin, 中井俊一
    • Organizer
      質量分析学会同位体比部会
    • Place of Presentation
      北海道定山渓
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Tungsten abundance and isotopic compositions of Ocean Island Basalts, an Oceanic Plateau, MORB samples : in search for a core-mantle interaction2007

    • Author(s)
      A. Takamasa, S. Nakai, et al.
    • Organizer
      2007 AGU Fall Meeting
    • Place of Presentation
      San Francisco, USA
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] 消滅核種182Hf, 107Pdを用いたコアーマントル相互作用の検証の試み2006

    • Author(s)
      中井俊一, サフー ユービン, 賞雅朝子, アリ アルシャット
    • Organizer
      日本地球化学会年会
    • Place of Presentation
      日本大学文理学部
    • Year and Date
      2006-09-14
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 南太平洋海洋島玄武岩のタングステン同位体比測定 : コア-マントル相互作用の検証2006

    • Author(s)
      賞雅朝子, 中井俊一, サフーユービン, 羽生毅
    • Organizer
      日本地球化学会年会
    • Place of Presentation
      日本大学文理学部
    • Year and Date
      2006-09-13
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 南ポリネシア・海洋島玄武岩のタングステンと鉛の同位体比測定-コア-マントル相互作用の検証2006

    • Author(s)
      賞雅朝子, 中井俊一, 羽生毅
    • Organizer
      日本地球惑星科学連合2006年大会
    • Place of Presentation
      幕張メッセ国際会議場
    • Year and Date
      2006-05-17
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Tungsten abundance and isotopic compositions of Ocean Island Basalts, an Oceanic Plateau, MORE samples : in search for a core-mantle interaction

    • Author(s)
      A. Takamasa, S. Nakai, Y. V. Sahoo, T. Hanyu, Y. Tatsumi, M. Tejada, H. Kumagai, S. Umino, T. Sano
    • Organizer
      2007 AGU Fall Meeting. (Eos Transactions, AGU, 88 (52), Fall Meet. Supplement)
    • Place of Presentation
      San Francisco, USA
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary

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Published: 2005-04-01   Modified: 2016-04-21  

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