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Studies on geochemical cycle using stable and radiogenic isotopes of rare earth elements

Research Project

Project/Area Number 18204053
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Geochemistry/Astrochemistry
Research InstitutionNagoya University

Principal Investigator

TANAKA Tsuyoshi  Nagoya University, 年代測定総合研究センター, 名誉教授 (00236605)

Co-Investigator(Kenkyū-buntansha) ASAHARA Yoshihiro  名古屋大学, 環境学研究科, 助教 (10281065)
TANIMIZU Masaharu  海洋科学技術センター, 研究員 (20373459)
足立 守  博物館, 教授 (10113094)
三村 耕一  名古屋大学, 環境学研究科, 准教授 (80262848)
Project Period (FY) 2006 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥29,900,000 (Direct Cost: ¥23,000,000、Indirect Cost: ¥6,900,000)
Fiscal Year 2009: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2008: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2007: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2006: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
Keywords同位体 / 希土類元素 / 同位体質量分別 / 放射壊変 / 地球化学サイクル / 地球科学サイクル / ユーロピウム / ネオジム / 放射壊変系 / 電荷の転換 / ストロンチウム / 炭酸塩 / 長石 / サマリウム
Research Abstract

Two mass spectrometric techniques are developed in this study to make high precision stable isotope analysis of REEs possible by thermal ionization mass spectrometry (TIMS). The first technique is total evaporation normalization (TEN) method developed for the analysis of very small amount of Nd samples. It is a combination of two existing techniques : total evaporation technique and internal normalization technique. Combination of these two existing techniques allows precise radiogenic Nd isotope ratio measurements of sub-ng Nd samples. The external precision of the ^<143>Nd/^<144>Nd ratio for 0.5ng Nd sample was 140ppm. This precision is order of magnitude smaller than that obtained by the conventional measurements. The precision achieved by the TEN method for the measurement of sub-ng Nd sample is sufficient for the application of ^<143>Nd/^<144>Nd ratio as a geochemical tracer.
The second technique developed in this study is a combined double-spike TIMS technique for high-precision s … More table isotope analysis of two REEs, Nd and Sm. The double-spike TIMS technique is a method of choice to meet these requirements. Several refinements in the double spike TIMS technique were made to minimize the introduction of possible error during deconvolution. Adjustment of free-parameters such as isotope composition of the double spike and sample-spike mixing ratio is important in double-spike analysis, because the degree of error magnification during the deconvolution process is considerably affected by these parameters. These parameters are optimized for Nd and Sm analyses by means of error propagation simulation. Precision of the developed technique is estimated from the analysis of in-house reference materials. The long-term reproducibility of the ε^<146>Nd and ε^<148>Sm values of the in-house reference materials were ±0.2 (2SD, n=44) and ±1.2 (2SD, n=44), respectively. Accuracy of the developed technique is confirmed from the analysis of isotope fractionation behavior during cation exchange chromatography for both elements. In addition, eleven commercial Nd oxide reagents were analyzed for their stable Nd isotope composition. The ε^<146>Nd value (reference to the in-house reference material JNdi-1) of the 11 reagents ranges from -2.5 to +0.3. No correlation was found between ε^<146>Nd value and the purity of the reagents. Therefore, it is not clear whether the observed stable isotopic variation among these reagents reflects the difference of the degree of isotope fractionation during production and purification processes of these reagents or the difference of the isotope composition of their source materials.
Various terrestrial materials were analyzed for Nd stable isotopes by the developed double-spike TIMS technique. The stable Nd isotope composition of 8 igneous rocks (including 3 basalts, 2 granites and 3 rhyolites) agreed within analytical error. The average ε^<146>Nd value of the igneous rocks was -0.2±0.4 (2SD). The consistency of stable Nd isotopes in igneous rocks suggests uniform stable Nd isotope composition of the mantle material since the effect of isotope fractionation is negligibly small in high-temperature reactions. Thus, the average Nd isotope composition of igneous rocks is a good estimate of the Nd isotope composition of the bulk silicate earth (BSE).
Stable isotope composition of Nd in the modern seawater is estimated from the analysis of Mn nodule and coral. The ε^<146>Nd value of Mn nodule and coral were 0.2±0.2 (2SD, n=2) and -0.2±0.2 (2SE), respectively. REEs in Mn nodule and coral are of seawater origin. The consistency of the ε^<146>Nd values in Mn nodule and coral implies that no isotope fractionation took place during the REE incorporation from seawater into these materials : if isotope fractionation occurs, the degree of the fractionation will be different among different chemical compounds. Therefore, stable Nd isotope composition of the modern seawater is directly represented by Mn nodule and coral.
Difference of the REE concentrations between carbonate rocks and organic calcite, precursor material of the carbonate rocks, suggests that REE was concentrated in carbonate rocks via inorganic chemical reaction between calcite and seawater during diagenesis. REE concentration in most of the carbonate rock samples is consistent with the concentration of the calcite equilibrated with modern seawater. The stable isotope composition of Nd in carbonate rocks probably reflects equilibrium or near equilibrium isotope fractionation between seawater and inorganic calcite. Less

Report

(6 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report   Self-evaluation Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (59 results)

All 2011 2010 2009 2008 2007 2006 Other

All Journal Article (40 results) (of which Peer Reviewed: 34 results) Presentation (14 results) Book (2 results) Remarks (3 results)

  • [Journal Article] Isotopic dating of the Khoy metamorphic complex (KMC),northwestern Iran:Asignificant revisionof the formation age and magma source.2011

    • Author(s)
      Azizi, H., Chung, S-L., Tanaka T., Asahara,Y.
    • Journal Title

      Precambrian Res. vol.185

      Pages: 87-94

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] 天然放射線を用いたガーネムアリ遺跡の土壌対比2010

    • Author(s)
      田中剛, 他2名
    • Journal Title

      名大博物館報告 26号

      Pages: 59-70

    • Related Report
      2009 Final Research Report
  • [Journal Article] La-Ce and Sm-Nd isotopic systematic of early Proterozoic leucogranite with tetrad REE pattern.2010

    • Author(s)
      Lee, S-G., Asahara Y., Tanaka, T., Kim, N.H., 他3名
    • Journal Title

      Chem.Geol. vol.276

      Pages: 360-373

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] 歩道放射線の多様性とその天然放射線通路標識(Radio Guide Way)としての利用2010

    • Author(s)
      田中剛・片岡良輔
    • Journal Title

      地質ニュース 688号

      Pages: 68-71

    • NAID

      40017440506

    • Related Report
      2009 Final Research Report
  • [Journal Article] Early Bronze age strata at Tell Ghanem Al-Ali along the Middle Euphrates in Syria : A preliminary report of ^<14>C dating results.2010

    • Author(s)
      Nakamura, T., Hoshino, M., Tanaka T., Yoshida, H., 他10名
    • Journal Title

      Radiocarbon vol..52

      Pages: 383-392

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Geological and Chronological Study in the Bishri Region.2010

    • Author(s)
      Hoshino, M., Tanaka T., Nakamura, T., 他6名
    • Journal Title

      AL-RAFIDAN Special Issue 「Formation of Tribal Communities : Integrated Research in the Middle Euphrates, Syria」

      Pages: 9-19

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] La-Ce and Sm-Nd isotopic systematic of early Proterozoic leucogranite with tetrad REE pattern.2010

    • Author(s)
      Lee, S-G., Asahara, Y., Tanaka, T., 他4名
    • Journal Title

      Chemical Geology

      Volume: 276 Pages: 360-373

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Early Bronze age strata at Tell Ghanem Al-Ali along the Middle Euphrates in Syria : A preliminary report of ^<14>C dating results.2010

    • Author(s)
      Nakamura, T., Hoshino, M., Tanaka, T., 他11名
    • Journal Title

      Radiocarbon

      Volume: 52 Pages: 383-392

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] さわって心地よい岩石2009

    • Author(s)
      田中剛
    • Journal Title

      地質ニュース

      Volume: 656 Pages: 49-52

    • NAID

      40016611752

    • Related Report
      2009 Annual Research Report
  • [Journal Article] 地球化学図と中性子放射化分析による多試料・多元素分析2008

    • Author(s)
      田中剛
    • Journal Title

      TRACER vol.44

      Pages: 3-80

    • Related Report
      2009 Final Research Report
  • [Journal Article] He-Ar and Nd-Sr isotopic compositions of late Pleistocene felsic plutonic back arc basin rocks from Ulleungdo volcanic island, South Korea : implications for the genesis of young plutonic rocks in a back arc basin.2008

    • Author(s)
      Kim, K.H., Nagao, K., Sumino, H., Tanaka T., 他3名
    • Journal Title

      Chem.Geol. vol.253

      Pages: 180-195

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Provenance of Proterozoic Basal Aravalli mafic volcanic rocks from Rajasthan, Northwestern India : Nd isotopes evidence for enriched mantle reservoirs.2008

    • Author(s)
      Ahmad, T., Dragusanu, C., Tanaka T.
    • Journal Title

      Precambrian Res. v.162

      Pages: 150-159

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Geochemical and isotopic constraints on the age and origin of the Nidar Ophiolitic Complex, Ladakh, India : Implications for the Neo-Tethyan Subduction along the Indus Suture Zone.2008

    • Author(s)
      Ahmad, T., Tanaka T., Asahara, Y., 他3名
    • Journal Title

      Tectonophys. v.451

      Pages: 206-224

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] He-Ar and Nd-Sr isotopic compositions of late Pleistocene felsic plutonic back arc basin rocks from Ulleungdo volcanic island, South Korea : implications for the genesis of young plutonic rocks in a back arc basin.2008

    • Author(s)
      Kim, K.H., Nagao, K., Sumino, H., Tanaka T., 他3名
    • Journal Title

      Chem.Geol. v.253

      Pages: 180-195

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] He-Ar and Nd-Sr isotopic compositions of late Pleistocene felsic plutonic back arc basin rocks from Ulleungdo volcanic island2008

    • Author(s)
      Kim, K. H., Nagao, K., Sumino, H., Tanaka, T. and 3 others
    • Journal Title

      South Korea : implications for the genesis of young Plutonic rocks in a back arc basin. Chem. Geol v.253

      Pages: 180-195

    • Related Report
      2008 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Geochemical and isotopic constraints on the age origin of the Nidar Ophiolitic Complex2008

    • Author(s)
      Ahmad, t., Tanaka, T., Asahara, Y. and 3 others
    • Journal Title

      Ladakh, India : Implications for the Neo-Tethyan Subduction along the Indus Suture Zone. Tectonophys V.451

      Pages: 206-224

    • Related Report
      2008 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] He-Ar and Nd-Sr isotopic compositions of late Pleistocene felsic plutonic back arc basin rocks from Ulleungdo volcanic island, South Korea : implications for the genesis of young plutonic rocks in aback arc basin2008

    • Author(s)
      Kim, K.H., Nagao, K., Sumino, H., Tanaka, T., 3others
    • Journal Title

      Chemical Geology 253

      Pages: 180-195

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Geochemical and isotopic constraints on the age and origin of the Nidar Ophiolitic Complex, Ladakh, India : Implications for the Neo-Tethyan Subduction along the Indus Suture Zone2008

    • Author(s)
      Ahmad, T., Tanaka, T., Sachan, H.K., Asahara, Y., 2 others
    • Journal Title

      Tectonophysics 451

      Pages: 206-224

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Provenance of Proterozoic Basal Aravalli mafic volcanic rocks from Rajasthan, Northwestern India : Nd isotopes evidence for enriched mantle reservoirs2008

    • Author(s)
      Ahmad, T., Dragusanu, C., Tanaka, T.
    • Journal Title

      Precambrian Research 162

      Pages: 150-159

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Os, Nd and Sr isotopic and chemical compositions of ultramafic xenoliths from Kurose, SW Japan : Implications for contribution of slab-derived material to wedge mantle.2007

    • Author(s)
      Senda, R., Tanaka T., Suzuki, K.
    • Journal Title

      Lithos v.95

      Pages: 229-242

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Geochemical mapping in Aichi Pref., Japan : Its significance as a useful dataset for geological mapping.2007

    • Author(s)
      Yamamoto, K., Tanaka T., Minami, M., Mimura, K., Asahara, Y., 他4名
    • Journal Title

      Applied Geochem. v.22

      Pages: 306-319

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] An attempt to determine the age of geological fractures by applying Rb-Sr mineral isochron dating to fracture-filling minerals.2007

    • Author(s)
      Takagi, M., Tanaka T.
    • Journal Title

      Geochem.J. v.41

      Pages: 165-172

    • NAID

      10019557130

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Isotope ratio measurements of trace Nd by the total evaporation normalization (TEN) method in thermal ionization mass spectrometry.2007

    • Author(s)
      Wakaki, S., Shibata, S., Tanaka T.
    • Journal Title

      Internatio.J.Mass Spec. v.264

      Pages: 157-163

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Isotope ratio measurements of trace Nd by the total evaporation normalization (TEN) method in thermal ionization mass spectrometry2007

    • Author(s)
      Wakaki, S., Shibata, S. and Tanaka, T.
    • Journal Title

      International J. Mass Spec. v.264

      Pages: 157-163

    • Related Report
      2008 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] An attempt to determine the age of geological fractures by applying Rb-Sr mineral isochron dating to fracture-filling minerals2007

    • Author(s)
      Takagi, M. and Tanaka, T.
    • Journal Title

      Geochem. J. v.41

      Pages: 165-172

    • NAID

      10019557130

    • Related Report
      2008 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Geochemical mapping in Aichi Pref.2007

    • Author(s)
      Yamamoto, K., Tanaka, T., Minami, M., Mimura, K., Asahara, Y. and 4 others
    • Journal Title

      Japan : Its significance as a useful dataset for geological mapping. Applied Geochem. v.22

      Pages: 306-319

    • Related Report
      2008 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Os, Nd and Sr isotopic and chemical compositions of ultramafic xenoliths from Kurose2007

    • Author(s)
      Senda, R. Tanaka, T. and Suzuki, K.
    • Journal Title

      SW Japan: Implications for contribution of slab-derived material to wedge mantle. Lithos v.95

      Pages: 229-242

    • Related Report
      2008 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Isotope ratio measurements of trace Nd by the total evaporation normalization (TEN) method in thermal ionization mass spectrometry.2007

    • Author(s)
      Wakaki, S., Shibata, S. and Tanaka, T.
    • Journal Title

      International Jour. Mass Spectrometry 264

      Pages: 157-163

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Os, Nd and Sr isotopic and chemical compositions of ultramaficxenoliths from Kurose, SW Japan: Implications for contribution of slab-derived material to wedge mantle.2007

    • Author(s)
      Senda, R., Tanaka, T. and Suzuki, K.
    • Journal Title

      Lithos 95

      Pages: 229-242

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An attempt to determine the age of geological fractures by applying Rb-Sr mineral isochron dating to fracture-filling minerals.2007

    • Author(s)
      Takagi, M. and Tanaka, T.
    • Journal Title

      Geochemical Journal 41

      Pages: 165-172

    • NAID

      10019557130

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Isotope ratio measurements of trace Nd by the total evaporation normalization (TEN) method in thermal ionization mass spectrometry.2007

    • Author(s)
      Wakaki, S; Shibata, S. and Tanaka, T.
    • Journal Title

      International Jour. Mass Spectrometry. (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Multiple records from osmium, neodymium and strontium isotope systems of the Nikubuchi ultramafic complex in the Sambagawa metamorphic belt, central Shikoku2006

    • Author(s)
      Senda, R., Kachi, T., Tanaka T.
    • Journal Title

      Japan.Geochem.J. v.40

      Pages: 135-148

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] セム系部族社会の形成に「環境学」を求めて2006

    • Author(s)
      田中剛
    • Journal Title

      文科省科研費補助金特定領域研究「セム系部族社会の形成」ニュースレター No.2

      Pages: 22-24

    • Related Report
      2009 Final Research Report
  • [Journal Article] Application of Sr isotope to geochemical mapping and provenance analysis : the case of Aichi Pref.2006

    • Author(s)
      Asahara, Y., Ishiguro, H., Tanaka T., 他4名
    • Journal Title

      central Japan. Applied Geochem. v.21

      Pages: 419-436

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] INAA trace element analysis of stream sediments collected from the northeastern areas of Aichi Prefecture, central2006

    • Author(s)
      Minami, M., Shibata, S., Tanaka T.
    • Journal Title

      Japan.Jour.Earth Planet.Sci.Nagoya Univ. vol.53

      Pages: 15-32

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Crystal structure control of the dissolution of rare earth elements in water-mineral interactions.2006

    • Author(s)
      Shibata, S., Tanaka T., Yamamoto, K.
    • Journal Title

      Geochem.J. vol.40

      Pages: 437-446

    • NAID

      10019373778

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Crystal structure control of the dissolution of rare earth elements in water-mineral interactions2006

    • Author(s)
      Shibata, S., Tanaka, T. and Yamamoto, K.
    • Journal Title

      Geochem. J. vol.40

      Pages: 437-446

    • NAID

      10019373778

    • Related Report
      2008 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Application of Sr isotope to geochemical mapping and provenance analysis: the case of Aichi Prefec., central Japan2006

    • Author(s)
      Asahara, Y., Ishiguro, H., Tanaka, T. and 4 others
    • Journal Title

      Applied Geochem v.21

      Pages: 419-436

    • Related Report
      2008 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Multiple records from osmium, neodymium and strontium isotope systems of the Nikubuchi ultramafic complex in the Sambagawa metamorphic belt2006

    • Author(s)
      Senda R., Kachi, T. and Tanaka, T.
    • Journal Title

      central Shikoku, Japan. Geochem. J v.40

      Pages: 135-148

    • Related Report
      2008 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Provenance of Proterozoic Basal Aravalli mafic volcanic rocks from 150-159

    • Author(s)
      Ahmad, T., Dragusanu, C. and Tanaka, T.
    • Related Report
      2008 Self-evaluation Report
    • Peer Reviewed
  • [Presentation] Petrology, rare earth element composition and oxygen isotopic composition of a compound CAI-chondrule inclusion from Allende.2010

    • Author(s)
      Wakaki, S., Itch, S., Tanaka, T., Yurimoto, H.
    • Organizer
      40^<th> Lunar and Planetary Science Conference.
    • Place of Presentation
      Houston(口頭)
    • Related Report
      2009 Final Research Report
  • [Presentation] ナショナルインベントリーマップとしての地球化学図2010

    • Author(s)
      田中剛、山本鋼志、南雅代, 他4名
    • Organizer
      日本地質学会第117年学術大会
    • Place of Presentation
      富山大学
    • Related Report
      2009 Annual Research Report
  • [Presentation] Huge difference of 87Sr/86Sr ratios between adjacent, same-aged seamount type limestones in Japan.2009

    • Author(s)
      Suzuki, K., Asahara, Y., Mimura, K., Tanaka, T.
    • Organizer
      19^<th> V.M.Goldschmidt Conference
    • Place of Presentation
      Davos.(ポスター)
    • Related Report
      2009 Final Research Report
  • [Presentation] Natural isotope variation of Europium among geological samples.2009

    • Author(s)
      Tanaka, H., Wakaki, H., Tanimizu, M., Tanaka, T.
    • Organizer
      19^<th> V.M.Goldschmidt Conference
    • Place of Presentation
      Davos.(口頭)
    • Related Report
      2009 Final Research Report
  • [Presentation] Geological and Chronological Study in the Bishri Region.2009

    • Author(s)
      Hoshino, M., Tanaka, T., Nakamura, T., Yoshida, H., Saito, T., Tsukada, K., Katsurada, Y., Aoki, Y., Oho, S.
    • Organizer
      International Symposium「Formation of Tribal Communities, Integrated Research in the Middle Euphrates, Syria.」
    • Place of Presentation
      Tokyo(口頭)
    • Related Report
      2009 Final Research Report
  • [Presentation] Recent new approach on thermal ionization mass spectrometry at Nagoya.2008

    • Author(s)
      Tanaka, T.
    • Organizer
      The KIGAM Workshop on Isotope Geochemistry
    • Place of Presentation
      Daejeon, South Korea(招待講演)
    • Year and Date
      2008-03-12
    • Related Report
      2009 Final Research Report
  • [Presentation] Recent new approach on thermal ionization mass spectrometry at Nagoya2008

    • Author(s)
      Tanaka, T.
    • Organizer
      The KIGAM Workshop on Isotope Geochemistry
    • Place of Presentation
      Daejeon, South Korea(招待講演)
    • Year and Date
      2008-03-12
    • Related Report
      2008 Self-evaluation Report
  • [Presentation] Application of neutron activation analysis for geochemistry and mineral resources exploration.2008

    • Author(s)
      Tanaka T.
    • Organizer
      The Forum of Nuclear Cooperation in Asia
    • Place of Presentation
      Dalat, Vietnam(招待講演)
    • Related Report
      2009 Final Research Report
  • [Presentation] Application of neutron activation analysis for geochemistry and mineral resources exploration2008

    • Author(s)
      Tanaka T.
    • Organizer
      The Forum of Nuclear Cooperation in Asia
    • Place of Presentation
      Dalat, Vietnam
    • Related Report
      2008 Annual Research Report
  • [Presentation] Stable isotope geochemistry of Nd in various terrestrial rocks.2007

    • Author(s)
      Wakaki, S., Tanaka, T.
    • Organizer
      17^<th> V.M.Goldschmidt Conference
    • Place of Presentation
      Koln.
    • Related Report
      2009 Final Research Report
  • [Presentation] Rb-Sr single bed isochron dating with evidence of isotopic equilibrium.2007

    • Author(s)
      Nakao, T., Tanaka, T., Kojima, S.
    • Organizer
      17^<th> V.M.Goldschmidt Conference
    • Place of Presentation
      Koln.(ポスター)
    • Related Report
      2009 Final Research Report
  • [Presentation] Elemental and isotopic fractionation in some organs of bamboo.2007

    • Author(s)
      Tanaka, T., Wakaki, S., Tanimizu, M., Asahara, Y.
    • Organizer
      17^<th> V.M.Goldschmidt Conference
    • Place of Presentation
      Koln.(ポスター)
    • Related Report
      2009 Final Research Report
  • [Presentation] Stable isotope geochemistry of Nd in various terrestrial rocks2007

    • Author(s)
      Wakaki, S. and Tanaka, T.
    • Organizer
      17^<th> V. M. Goldschmidt Conference
    • Place of Presentation
      Koln
    • Related Report
      2008 Self-evaluation Report
  • [Presentation] Stable isotope geochemistry of Nd in various terrestrial rocks.2007

    • Author(s)
      Wakaki, S. and Tanaka, T
    • Organizer
      17th V. M. Goldschmidt Conference
    • Place of Presentation
      Ko:rn, Germany
    • Related Report
      2007 Annual Research Report
  • [Book] 地球化学講座第8巻『地球化学実験法』2010

    • Author(s)
      田中剛(吉田尚弘と共編)
    • Total Pages
      332
    • Publisher
      培風館
    • Related Report
      2009 Annual Research Report
  • [Book] 地球化学講座第8巻『地化学実験法』(自然を理解するための実験法)

    • Author(s)
      田中剛
    • Publisher
      培風館(共同編集、分担執筆)
    • Related Report
      2009 Final Research Report
  • [Remarks] ホームページ等

    • Related Report
      2009 Final Research Report
  • [Remarks]

    • URL

      http://chibake.com/menber/ttanaka/index.html

    • Related Report
      2008 Self-evaluation Report
  • [Remarks]

    • URL

      http://chibake.com/member/ttanaka/index.html

    • Related Report
      2008 Annual Research Report

URL: 

Published: 2006-04-01   Modified: 2016-04-21  

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