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Comparison of paleoenvironmental changes between both hemispheres

Research Project

Project/Area Number 14540458
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 地球化学
Research InstitutionIndependent Administrative Institution, Japan Agency for Marine-Earth Science and Technology

Principal Investigator

HARADA Naomi  Independent Administrative Institution, Japan Agency for Marine-Earth Science and Technology, Institute of Observational Research for Global Change, Sub group leader, 地球環境観測研究センター, サブリーダー (70344281)

Co-Investigator(Kenkyū-buntansha) AHAGON Naokazu  Hokkaido University, Associate Professor, 大学院・理学研究院, 助教授 (30359161)
KIMOTO Katsunori  Independent Administrative Institution, Japan Agency for Marine-Earth Science and Technology, Institute of Observational Research for Global Change, Researcher, 地球環境観測研究センター, 研究員 (40359162)
UCHIDA Masao  Independent Administrative Institution, Japan Agency for Marine-Earth Science and Technology, Institute of Observational Research for Global Change, Researcher, 地球環境観測研究センター, 研究員 (50344289)
YAMAZAKI Toshitsugu  AIST, Geological Survey of Japan, Research group leader, 海洋資源研究部門, 研究グループ長 (80344125)
ASAHARA Yoshihiro  Nagoya University, Assistant Professor, 大学院・環境学研究科, 助手 (10281065)
Project Period (FY) 2002 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2005: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2004: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2003: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2002: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsPaleoceanography / Marine sediments / Biomarker / Both hemispheres / 国際研究者交流 / 南太平洋 / 堆積物 / アルケノン / 古水温 / 二酸化炭素分圧 / 有孔虫化石 / 古地磁気 / 風成塵 / 14C年代 / 中層水循環 / 基礎生産量 / 南北両大陸
Research Abstract

During the first year of the term of this grant, we couls obtained the data set of alkenone sea surface temperature and oxygen isotopic profile of planktonic foraminifera over the past 400 ka recorded in the sedimnet cores collected in the northwestern North Pacific. In the second year, total six long-size sediment cores were collected in the Chilean marginal area, Magellan strait, south eastern Indian Ridge, and Kelgueren Plateau during r/V MIRAI MR03-K04 cruise. During the third and forth years, chemical paleo proxides, alkenone, oxygen isotopic ratio of planktonic foraminifera, opal, 210Pb, radiocarbon, foraminiferal assemblanges of sediment cores collected in the above area has been analyzed onshore.
On the other hand, for the sediment cores in high latitude of the North Pacific and the Okhotsk Sea, sea surface temperature was reconstructed with decadal-centennial time resolution over the past 100ka. In addition, variation of ventilation of water mass from the intermediate to deep w … More as reconstructed in the northwestern North Pacific with centennial - millennial time scale resulution. As a result, ventilation speed was rapidly down at the Bolling-Allorod interstatial (12 ka) when is just before the Younger Dryas cooling period (11ka). This slow down of ventilation of the intermediate water mass at 12 ka corresponded to the timing of enormous methane dydrate release recorded in the sediment cores Off Tokachi area. The change in the ventilation of intermediate water mass might affect the regional carbon cycle in the northwestern North Pacific.
In order to reconstruct of sea surface temperature at the Pacific side mouth of Magellan strait, alkenon, which is a robust paleothermometer was analyzed. Alkenon temperature varied from 8.7℃ to 12℃ and garadually increased from the bottom to 600cm depth. We could find a sharp decrease in alkenon temperature (<10℃) at 520cm depth. After the low alkenone temperature event at 520cm depth, alkenone teperature again up to 12℃. According to the ^<14>C data or core top, the dramatic cooling of alkenone temperature had started at 4-5 kyrBP.
More high quality sediments cores from the southern hemisphiere are necessary to compare with teh paleoenvironmental changes in the northern hemisphere with high time resolution. Less

Report

(5 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (93 results)

All 2006 2005 2004 2003 2002 Other

All Journal Article (81 results) Publications (12 results)

  • [Journal Article] Application of Sr isotopes to geochemical mapping and provenance analysis : The case of Aichi Prefecture, central Japan.2006

    • Author(s)
      Asahara Y., H.Ishiguro, T.Tanaka, K.Yamamoto, K.Mimura, M.Minami, H.Yoshida
    • Journal Title

      Applied Geochemistry 21

      Pages: 419-436

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 室内飼育実験による浮遊性有孔虫の生態2006

    • Author(s)
      木元克典, 松岡 篤
    • Journal Title

      化石 79

      Pages: 1-2

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Application of Sr isotopes to geochemical mapping and provenance analysis : The case of Aichi Prefecture, central Japan.2006

    • Author(s)
      Asahara Y, H.Ishiguro, T.Tanaka, K.Yamamoto, K.Mimura, M.Minami, H.Yoshida
    • Journal Title

      Applied Geochem. 21

      Pages: 419-436

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Millennial-scale variations of sea-ice expansion and their relation to Okhotsk Intermediate Water formation in the southwestern part of the Okhotsk Sea during the past 120 kyr : Results from IMAGES core MD01-2412 analyses.2006

    • Author(s)
      Harada N., N.Ahagon, T.Sakamoto, M.Uchida, M.Ikehara, Y.Shibata
    • Journal Title

      Global and Planetary Change (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Characteristics of alkenone particles in the northwestern North Pacific.2006

    • Author(s)
      Harada N., A.Shiraishi, M.Sato, M.C.Honda
    • Journal Title

      Geochim.Cosmochim.Acta 70

      Pages: 2045-2062

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Ecological study of living planktic foraminifera by culture experiments (in Japanese)2006

    • Author(s)
      Kimoto, K., A.Matsuoka
    • Journal Title

      Fossils 79

      Pages: 1-2

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Rapid fluctuation of alkenone temperature in the southwestern Okhotsk Sea during the past 120 kyr,2006

    • Author(s)
      Harada Naomi
    • Journal Title

      Global and Planetary Change (In press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Characteristics of alkenone distributions in suspended and sinking particles in the northwestern North Pacific.2006

    • Author(s)
      Harada Naomi
    • Journal Title

      Geochimica Coshimochimica Acta (In press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A geomagnetic paleointensity stack between 0.8 and 3.0 Ma from equatorial Pacific sediment cores2005

    • Author(s)
      Yamazaki, T., H.Oda
    • Journal Title

      Geochem. Geophys. Geosyst 6

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Age discrepancy between molecular biomarker and calcareous foraminifera isolated from same horizons from the Northwest Pacific,2005

    • Author(s)
      Uchida, M., Y.Shibata, K.Kawamura, K.Ohkushi, M.Yoneda
    • Journal Title

      Chemical Geology 218

      Pages: 73-89

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Milankovitch cycles and paleoceanographic evolution within sediments from ODP Site 980 and 983 of the North Atlantic Ocean.2005

    • Author(s)
      Hyun, S., N.Ahagon, H.Yoon
    • Journal Title

      Geoscience Journal 9

      Pages: 231-242

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Foraminiferal isotope anomalies from northwestern Pacific marginal sediments.2005

    • Author(s)
      Ohkushi K., N.Ahagon, M.Uchida, Y.Shibata
    • Journal Title

      Geochem. Goephys. Geosyst 6,Q04005

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Polarity reversals of remanent magnetization in a sedimentary core from Northwind Ridge, western Arctic Ocean.2005

    • Author(s)
      Sakai H, Y.Banda, M.Horii, T.Itakui, N.Ahagon, E.Kikawa
    • Journal Title

      Polar Geoscience No.18

      Pages: 67-82

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Intensity-Inclination Correlation on Long-Term Secular Variation of the Geomagnetic Field and its Relevance to Persistent Non-Dipole Component.2005

    • Author(s)
      Yamazaki, T., H.Oda
    • Journal Title

      AGU Monograph 145

      Pages: 287-298

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Geomagnetic paleointensity fluctuation revealed from marine sediment cores : a perspective as the part of earth system.2005

    • Author(s)
      Yamazaki, T.
    • Journal Title

      Journal of Geography 114(2)

      Pages: 151-160

    • NAID

      10017472924

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Basic physical properties of sediment cores collected in the Chilean marginal area and Magellan Strait during leg.3 of cruise MR03-K04.2005

    • Author(s)
      Harada N., et al.
    • Journal Title

      JAMSTEC Report 2

      Pages: 13-27

    • NAID

      130007800347

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Milankovitch cycles and paleoceanographic evolution within sediments from ODP Site 980 and 983 of the North Atlantic Ocean2005

    • Author(s)
      Hyun, S., N.Ahagon H.Yoon
    • Journal Title

      Geoscience Journal 9

      Pages: 231-242

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Foraminiferal isotope anomalies from northwestern Pacific marginal sediments.2005

    • Author(s)
      Ohkushi K., N.Ahagon, M.Uchida, Y.Shibata
    • Journal Title

      Geochem.Geophys.Geosyst. 6

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Polarity reversals of remanent magnetization in a sedimentary core from Northwind Ridge, western Arctic Ocean2005

    • Author(s)
      Sakai H, Y.Banba, M.Horii, T.Itaki, N.Ahagon, E.Kikawa
    • Journal Title

      Polar Geoscience No.18

      Pages: 67-82

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Age discrepancy between molecular biomarker and calcareous foraminifera isolated from same horizons from the Northwest Pacific2005

    • Author(s)
      Uchida, M., Y.Shibata, K.Kawamura, K.Ohkushi, M.Yoneda
    • Journal Title

      Chemical Geology 218

      Pages: 73-89

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] A geomagnetic paleointensity stack beween 0.8 and 3.0 Ma from equatorial Pacific sediment cores.2005

    • Author(s)
      Yamazaki, T., H.Oda
    • Journal Title

      Geochem.Geophys.Geosyst. 6

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Geomagnetic paleointensity fluctuation revealed from marine sediment cores : a perspective as the part of earth system. (in Japanese with English abstract)2005

    • Author(s)
      Yamazaki, T
    • Journal Title

      Journal of Geography 114(2)

      Pages: 151-160

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Basic physical properties of sediment cores collected in the Chilean marginal area and Magellan Strait during leg.3 of cruise MR03-K042005

    • Author(s)
      Harada N., N.Ahagon, C.B.Lange, Y.Asahara, S.Pantoja, M.E.Marchant, T.Mishima, H.Kanke, R.I.Tapia, J.Sepulueda, A.J.A.Santis, Y.Matsuura, Y.Sato, R.Maeda, T.Ueno, W.Tokunaga, R.Kimura, N.Nagahama
    • Journal Title

      JAMSTEC Report 2

      Pages: 13-27

    • NAID

      130007800347

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Basic physical properties of sediment cores collected in the Chilean marginal areas and Magellan Strait during leg.3 of cruise MR03-K04.2005

    • Author(s)
      Harada Naomi
    • Journal Title

      JAMSTEC Report 2

      Pages: 13-27

    • NAID

      130007800347

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Age discrepancy between molecular biomarker and calcareous foraminifera isolated from same horizons from the Northwest Pacific.2005

    • Author(s)
      Uchida Masao
    • Journal Title

      Chemical Geology 218

      Pages: 73-89

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 海底堆積物から明らかになった古地磁気強度変動像-地球システムの変動の一部としての視点2005

    • Author(s)
      山崎俊嗣
    • Journal Title

      地学雑誌 114・2

      Pages: 151-160

    • NAID

      10017472924

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 海底堆積物から明らかになった古地磁気強度変動像-地球システム変動の一部としての視点2005

    • Author(s)
      山崎俊嗣
    • Journal Title

      地学雑誌 (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Foraminiferal isotope anomalies from northwestern Pacific marginal sediments.2005

    • Author(s)
      K.Ohkushi, N.Ahagon, M.Uchida, Y.Shibata
    • Journal Title

      Geochemistry, Geophysics and Geosystems 印刷中

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Compound-specific radiocarbon analysis of individual polycyclic aromatic hydrocarbons (PAHs) in the sediment core sample from an urban reservoir.2004

    • Author(s)
      Kanke, H., M.Uchida, T.Okuda, H.Takada, M.Yoneda, Y.Shibata
    • Journal Title

      Nuclear Instruments and Methods in Physics Research B 223/224

      Pages: 545-554

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Transient response of mid-depth circulation in the northwest Pacific around the Younger Dryas event inferred from AMS 14C ages.2004

    • Author(s)
      Ahagon N., M.Uchida
    • Journal Title

      Nuclear Instruments and Methods in Physics Research B 223-224

      Pages: 460-465

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Hf-Nd isotopic variations of authigenic and silicate monponents in north Pacific sediments.2004

    • Author(s)
      Asahara Y. et al.
    • Journal Title

      Geochim. Cosmochim. Acta 66/SI

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Northward and southward migrations of frontal zones during the past 40 kyr in the Kuroshio-Oyashio transition area.2004

    • Author(s)
      Harada N., N.Ahagon, M.Uchida, M.Murayama
    • Journal Title

      Geochem. Geophys. Geosyst 5(9)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Glacial intermediate water ventilation in the northwestern Pacific based on AMS radiocarbon dating.2004

    • Author(s)
      Ohkushi, K., M.Uchida, N.Ahagon, T.Mishima, T.Kanematsu
    • Journal Title

      Nuclear Instruments and Methods in Physics Research B 223/224

      Pages: 460-464

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Ventilation changes in the Pacific intermediate water during the last 30kyr.2004

    • Author(s)
      Ohkushi, K., M.Uchida, T.Mushima
    • Journal Title

      Nuclear Instruments and Methods in Physics Research B 223/224

      Pages: 465-470

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Episodic methane release event from Last Glacial marginal sediments in the western North Pacific.2004

    • Author(s)
      Uchida, M., Y.Shibata, K.Ohkushi, N.Ahagon, M.Hoshida
    • Journal Title

      Geochem. Geophys. Geosyst. 5 Q08005

    • NAID

      130004592396

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Technical progress of microscale radiocarbon analysis.2004

    • Author(s)
      Uchida M., Y.Shibata, M.Yoneda, T.Kobayashi, M.Morita
    • Journal Title

      Nuclear Instruments and Methods in Physics Research B 223/224

      Pages: 313-317

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Global climate change linkage with episodic methane release events in the western North Pacific margin in the Last Glacial period.2004

    • Author(s)
      Uchida, M., Y.Shibara, K., Ohkuchi, N., Ahagon, M.Hoshiba
    • Journal Title

      IAEA synopsis of Isotopes in Environmental Studies IAEA-CN-118/24

      Pages: 41-42

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Living coccolithophorids in surface waters of the Tsugaru Strait during March - September.2004

    • Author(s)
      Xu X., K.Kimoto
    • Journal Title

      JAMSTEC Rept. Res. Dev 1

      Pages: 69-72

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Northward and southward migrations of frontal zones during the past 40 kyr in the Kuroshio-Oyashio transition area.2004

    • Author(s)
      Harada N., N.Ahagon, M.Uchida, M.Murayama
    • Journal Title

      Geochemistry Geophysics Geosystems 5(9)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Compound-specific radiocarbon analysis of individual polycyclic aromatic hydrocarbons (PAHs) in the sediment core sample from an urban reservoir2004

    • Author(s)
      Kanke, H., M.Uchida, T.Okuda, H.Takada, M.Yoneda, Y.Shibata
    • Journal Title

      Nuclear Instruments and Methods in Physics Research B223/224

      Pages: 545-554

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Glacial intermediate water ventilation in the northwestern Pacific based on AMS radiocarbon dating2004

    • Author(s)
      Ohkushi, K., M.Uchida, N.Ahagon, T.Mishima, T.Kanematsu
    • Journal Title

      Nuclear Instruments and Methods in Physics Research B223/224

      Pages: 460-464

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Ventilation changes in the Pacific intermediate water during the last 30kyr2004

    • Author(s)
      Ohtkushi, K., M.Uchida, T.Mishima
    • Journal Title

      Nuclear Instruments and Methods in Physical Research B223/224

      Pages: 465-470

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Episodic methane release event from Last Glacial marginal sediments in the western North Pacific2004

    • Author(s)
      Uchida, M., Y.Shibata, K.Ohkushi, N.Ahagon, M.Hoshiba
    • Journal Title

      Geochemist., Geophys.Geosyst. 5

    • NAID

      130004592396

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Technical progress of microscale radiocarbon analysis2004

    • Author(s)
      Uchida M., Y.Shibata, M.Yoneda, T.Kobayashi, M.Morita
    • Journal Title

      Nuclear Instruments and Methods in Physics Research B223/224

      Pages: 313-317

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Intensity-Inclination Correlation on Long-Term Secular Variation of the Geomagnetic Field and its Relevance to Persistent Non-Dipole Component2004

    • Author(s)
      Yamazaki, T., H.Oda
    • Journal Title

      AGU Monograph 145

      Pages: 287-298

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Global climate change linkage with episodic methane release events in the western North Pacific margin in the Last Global period2004

    • Author(s)
      Uchida, M., Y.Shibata, K., Ohkuchi, N., Ahagon, M.Hoshiba
    • Journal Title

      IAEA synopsis on Isotopes in Environmental Studies IAEA-CN-118/24

      Pages: 41-42

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Living coccolithophorids in surface waters of the Tsugaru Strait during March - September2004

    • Author(s)
      Xu X., K.Kimoto
    • Journal Title

      JAMSTEC Rept.Res.Dev. 1

      Pages: 69-72

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Northward and southward migrations of frontal zones during the past 40 kyr in the Kuroshio-Oyashio transition area.2004

    • Author(s)
      N.Harada, N.Ahagon, M.Uchida, M.Murayama
    • Journal Title

      Geochemistry, Geophysics and Geosystems 5(9)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Episodic methane release event from Last Glacial marginal sediments in the western North Pacific.2004

    • Author(s)
      M.Uchida, Y.Shibata, K.Ohkushi, N.Ahagon, M.Hoshiba
    • Journal Title

      Geochemistry Geophysics and Geosystems 5

    • NAID

      130004592396

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Transient response of mid-depth circulation in the northwest Pacific around the Younger Dryas event inferred from AMS 14C ages.2004

    • Author(s)
      N.Ahagon, M.Uchida
    • Journal Title

      Nuclear Instruments and Methods in Physics Research B 223-224

      Pages: 460-465

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Intensity-Inclination Correlation on Long-Term Secular Variation of the Geomagnetic Field And its Relevance to Persistent Non-Dipole Component2004

    • Author(s)
      Yamazaki, T., Oda, H.
    • Journal Title

      AGU Monograph 145

      Pages: 287-298

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Characteristics of alkenone particles in the northwestern North Pacific2003

    • Author(s)
      Harada N., A.Shiraishi, M.Sato, M.C.Honda
    • Journal Title

      Geochem. Cosmochim. Acta 70

      Pages: 2045-2062

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Depth distribution of radiolarians from the Chukchi and Beaufort Seas, western Arctic.2003

    • Author(s)
      Itaki T., M.Ito, H.Natira, N.Ahagon, Sakai H.
    • Journal Title

      Deep Sea Res,I, 50

      Pages: 1507-1522

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Carbonate dissolution and planktonic foraminifera assemblages observed in three piston cores collected above lysocline in the western equatorial Pacific.2003

    • Author(s)
      Kimoto, K., H.Takaoka, M.Oda, M.Ikehara, M.Okada, H.Matsuoka, T.Oba, A.Taira
    • Journal Title

      Mar. Micropaleontor 900

      Pages: 1-25

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Mid-depth circulation in the northwest Pacific during the last deglaciation : evidence from foraminiferal radiocarbon ages.2003

    • Author(s)
      Ahagon N., K.Ohkushi, M.Uchida, T.Mishima
    • Journal Title

      Geophys, Res. Lett. 30(21)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Characteristics of alkenone synthesized by a bloom of Emiliania huxleyi in the Bering Sea.2003

    • Author(s)
      Harada N., K.-H.Shin, A.Murata, M.Uchida, T.Nakatani
    • Journal Title

      Geochim. Cosmochim. Acta 67

      Pages: 1507-1519

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Spreading Process of the northern Mariana Trough.2003

    • Author(s)
      Yamazaki T., N.Seama, K.Okino, K.Kitada, M.Joshima, H.Oda, J.Naka
    • Journal Title

      Geochem. Geophys. Geosyst. 4,(9),1075

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Rock-magnetic changes with reduction diagenesis in Japan Sea surface sediments and preservation of geomagnetic secular variation in inclination during the last 30,000 years.2003

    • Author(s)
      Yamazaki T., A.L.Abdeldayem, K.Ikehara
    • Journal Title

      Earth Planet. Space 55

      Pages: 327-340

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Systematic variations in C, O, and Sr isotopes and elemental concentrations in Neoproterozoic carbonates in Namibia : implications for a glacial to interglacial transition.2003

    • Author(s)
      Yoshioka, H., Y.Asahara, B.Tojo, S.Kawakami
    • Journal Title

      Precambrian Research 124

      Pages: 69-85

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Alkenones synthesized by a bloom of Emiliania huxleyi in the Bering Sea in 2000(in Japanese)2003

    • Author(s)
      Harada N., K.-H.Shin, A.Murata, M.Uchida, T.Nakatani
    • Journal Title

      Monthly Kaiyo 35

      Pages: 436-442

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Preliminary results of MIRAI sediment coring investigations since 1997(in Japanese).2003

    • Author(s)
      Harada N., N.Ahagon, K.Kimoto, M.Uchida, T.Sakamoto, T.Itaki, H.Narita, K.Fukuma
    • Journal Title

      Monthly Kaiyo 34

      Pages: 149-161

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Culturing protocol and maintenance for living calcareous plankton - Preliminary results of the culturing experiment-.2003

    • Author(s)
      Kimoto, K., X.Xu, N.Ahagon, H.Nishizawa, Y.Nakamura
    • Journal Title

      Report of Japan Marine Science and Technology Center 48

      Pages: 155-164

    • NAID

      80016406057

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Mid-depth circulation in the northwest Pacific during the last deglaciation : evidence from foraminiferal radiocarbon ages2003

    • Author(s)
      Ahagon N., K.Ohkushi, M.Uchida, T.Mishima
    • Journal Title

      Geophys.Res.Lett. 30(21)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Characteristics of alkenone synthesized by a bloom of Emiliania huxleyi in the Bering Sea.2003

    • Author(s)
      Harada N., K.-H.Shin, A.Murata, M.Uchida, T.Nakatani
    • Journal Title

      Geochim.Cosmochim.Acta 67

      Pages: 1507-1519

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Depth distribution of radiolarians from the Chukchi and Beaufort Seas, western Arctic.2003

    • Author(s)
      Itaki T., M.Ito, H.Narita, N.Ahagon, Sakai H.
    • Journal Title

      Deep Sea Res.I 50

      Pages: 1507-1522

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Rock-magnetic changes with reduction diagenesis in Japan Sea surface sediments and preservation of geomagnetic secular variation in inclination during the last 30,000 years.2003

    • Author(s)
      Yamazaki T., A.L.Abdeldayem, K.Ikehara
    • Journal Title

      Earth Planet.Space 55

      Pages: 327-340

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Spreading Process of the northern Mariana Trough.2003

    • Author(s)
      Yamazaki T., N.Seama, K.Okino, K.Kitada, M.Joshima, H.Oda, J.Naka
    • Journal Title

      Geochem.Geophys.Geosyst. 4,(9)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Amino acid racemization chronology (in Japanese)2003

    • Author(s)
      Harada N.
    • Journal Title

      Geological news 586

      Pages: 18-23

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Alkenones synthesized by a bloom of Emiliania huxleyi in the Bering Sea in 2000 (in Japanese)2003

    • Author(s)
      Harada N., K.-H.Shin, A.Murata, M.Uchida, T.Nakatani
    • Journal Title

      Monthly Kaiyo 35

      Pages: 436-442

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Preliminary results of NIRAI sediment coring investigations since 1997 (in Japanese)2003

    • Author(s)
      Harada N., N.Ahagon, K.Kimoto, M.Uchida, T.Sakamoto, T.Itaki, H.Narita, K.Fukuma
    • Journal Title

      Monthly Kaiyo 34

      Pages: 149-161

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Culturing protocol and maintenance for living calcareous plankton -Preliminary results of the culturing experiment-.2003

    • Author(s)
      Kimoto, K., X.Xu, N.Ahagon, H.Nishizawa, Y.Nakamura
    • Journal Title

      Report of Japan Marine Science and Technology Center 48

      Pages: 155-164

    • NAID

      80016406057

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Biogenic opal indicating less productive northwestern North Pacific during the glacial ages.2002

    • Author(s)
      Narita H., M.Sato, S.Tsunogai, M.Ikegara, T.Nakatsuka, M.Wakatsuchi, N.Harada, Y.Ujiie
    • Journal Title

      Geophysical Research Letters 29(22)

      Pages: 1-4

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Is amino acid chronology available to estimate geological age of siliceous sediment?2002

    • Author(s)
      Harada N., T.Kondo, K.Fukuma, M.Uchida, T.Nakamura, M.Iwai, M.Murayama, T.Sugawara, M.Kusakabe
    • Journal Title

      Earth and Planetary Science Letters 198

      Pages: 257-266

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Long-term secular variation in geomagnetic field in inclination during Brunhes Chron recorded in sediment cores from Ontong-Java Plateau.2002

    • Author(s)
      Yamazaki T.
    • Journal Title

      Phys. Earth Planet. Inter 133

      Pages: 57-72

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Amino acid racemization chronology(in Japanese).2002

    • Author(s)
      Harada N.
    • Journal Title

      Geological news 586

      Pages: 18-23

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Hf-Nd isotopic variations of authigenic and silicate components in north Pacific sediments.2002

    • Author(s)
      Asahara Y. et al.
    • Journal Title

      Geochim.Cosmochim.Acta 66/SI

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Is amino acid chronology available to estimate geological age of siliceous sediment?2002

    • Author(s)
      Harada N., T Kondo, K.Fukuma, M.Uchida, T.Nakamura, M.Iwai, M.Murayama, T.Sugawara, M.Kusakabe
    • Journal Title

      Earth and Planetary Science Letters 198

      Pages: 257-266

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Carbonate dissolution and planktonic foraminifera assemblages observed in three piston cores collected above lysocline in the western equatorial Pacific.2002

    • Author(s)
      Kimoto, K., H.Takaoka, M.Oda, M.Ikehara, M.Okada, H.Matsuoka, T.Oba, A.Taira
    • Journal Title

      Mar.Micropaleontor. 900

      Pages: 1-25

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Biogenic opal indicating less productive northwestern North Pacific during the glacial ages.2002

    • Author(s)
      Narita H., M.Sato, S.Tsunogai, M.Ikehara, T.Nakatsuka, M.Wakatsuchi, N.Harada, Y.Ujiie
    • Journal Title

      Geophysical Research Letters 29

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Long-term secular variation in eomagnetic field in inclination during Brunhes Choron recorded in sediment cores form Ontong-Java Plateau.2002

    • Author(s)
      Yamazaki T.
    • Journal Title

      Phys.Earth Planet.Inter. 133

      Pages: 57-72

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Millennial-scale variations of sea-ice expansion and their relation to Okhotsk Intermediate Water formation in the southwestern part of the Okhotsk Sea during the pat 120 kyr : Results from IMGES core MD01-2412 analyses.

    • Author(s)
      Harada N., N.Ahagon, T.Sakamoto, M.Uchida, M.Ikehara, Y.Shibata
    • Journal Title

      Global and Planetary Change (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Publications] Harada et al.: "Characteristics of alkenone synthesized by a bloom of Emiliania huxleyi in the Bering Sea."Geochimica Cosmochimica et Acta. 67. 1507-1519 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Ahagon et al.: "Mid-depth circulation in the northwest Pacific during the last deglaciation : evidence from foraminiferal radiocarbon ages"Geophys.Res.Lett.. 30(21). doi:10.1029/2003GL018287 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Yamazaki et al.: "Rock-magnetic changes with reduction diagenesis in Japan Sea surface sediments and preservation of geomagnetic secular variation in inclination during the last 30,000 years."Earth Planet.Space. 55. 327-340 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Yamazaki et al.: "Spreading Process of the northern Mariana Trough."Geochem.Geophys.Geosyst.. 4. doi:10.1029/2002GC000492 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Yoshioka, H., Asahara, Y., Tojo, B., Kawakami, S.: "Systematic variations in C, O, and Sr isotopes and elemental concentrations in Neoproterozoic carbonates in Namibia : implications for a glacial to interglacial transition."Precambrian Research. 124. 69-85 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Itaki T., Ito M., Narita H., Ahagon N., Sakai H.: "Depth distribution of radiolarians from the Chukchi and Beaufort Seas, western Arctic"Deep Sea Res.Part I. 1507-1522 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Harada N, et al.: "Is amino acid chronology applicable to the estimation of the geological age of siliceous sediments?"Earth and Planetary Science Letter. 198. 257-266 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Harada N.: "Amino acid racemization chronology (in Japanese)"Geological news. (In press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.-H.Shin, Tanaka N., Harada N., J-C.Marty: "Production and turnover rates of C37 alkenones in the eastern Bering Sea : implication for the mechanism of a long duration of Emiliania huxleyi bloom"Progress in Oceanography. 55. 113-129 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kimoto K. et al.: "Carbonate dissolution and planktonic foraminiferal assemblages observed in three poiston cores collected above lysocline in the western equatorial Pacific"Marine Micropaleontology. 900. 1-25 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yamazaki T.: "Long-term secular variation in geomagnetic field in inclination during Brunhes Chron recorded in sediment cores from Ontong-Java Plateau"Phys. Earth Planet. Inter.. 133. 57-72 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Asahara, Y et al.: "Hf-Nd isotopic variations of authigenic and silicate components in north Pacific sediments"Geochimica et Cosmochimica Acta. 66/S1. A33 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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