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The origin of sapropels in the Eastern Mediterranean Sea

Research Project

Project/Area Number 08454146
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Stratigraphy/Paleontology
Research InstitutionHOKKAIDOU UNIVERSITY

Principal Investigator

KOIZUMI Itaru  Hokkaido Univ.Grad.School of Sci.Prof., 大学院・理学研究科, 教授 (20029721)

Co-Investigator(Kenkyū-buntansha) MINAGAWA Masao  Hokkaido Univ.Grad.School of Envi.Earth Sci.Assoc.Prof., 大学院・地球環境科学研究科, 教授 (10250507)
OOBA Tadamichi  Hokkaido Univ.Grad.School of Envi.Earth Sci.Prof., 大学院・地球環境科学研究科, 教授 (60013588)
SAKAMOTO Tatsuhiko  Hokkaido Univ.Grad.School of Sci.Inst., 大学院・理学研究科, 助手 (90271709)
SUZUKI Noriyuki  Hokkaido Univ.Grad.School of Sci.Assoc.Prof., 大学院・理学研究科, 助教授 (00144692)
OKADA Hisatake  Hokkaido Univ.Grad.School of Sci.Prof., 大学院・理学研究科, 教授 (80111334)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1997: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywordssapropel / monsoon / precession / staratification / productivity / organic matter / unoxic / mediterranean / 後方散乱電子像 / 珪藻ブルーミング / 珪藻マット / 高生産 / 東地中海 / 陸上起源有機物 / 海洋起源有機物 / 酸素・炭素同位体比 / 炭素・窒素同位体比 / 国際海洋掘削計画
Research Abstract

The core at ODP Hole 969F-1H recovered 430 kyr including from S11 to S1 sapropels. The multi-proxies analysis revealed that the organic-rich sapropels S3, S4, S5, and S6 were deposited at the conditions of low salinity surface water and stagnant bottomwater with high input of terrigenous organic materials. The depositional conditions of S7 was similar of them but with different bottomwater conditions in which organic flux should be dissolved.The organic-low sapropels S1, S10, and S11, interbedded in slightly reddish brown nannofossil ooze, were formed under warmer mixed surface water and stagnant bottomwater with dominant of marine-origin organic materials.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] 坂本 竜彦: "Leg160:Sapropelsの形成の謎に迫る過去500万年間の1万年単位の記録" 月刊地球. 19. 98-105 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] ODP Legs160 and 161 Shipboard scientfic party: "Drilling Probes Mediterranean climate and oceanography" EOS. 77. 19-21 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Robertson, A.: "Mud volcanism on the Mediterranean Ridge" Geology. 24. 239-242 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Emeis, K.-C.: "Proceedings of the Ocean Drilling Program,Imitial Reports" Ocean Drilling Program,College Station,TX., 972 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Emeis, K.-C.: "Proceedings of the Ocean Drilling Program,Scientific Results" Ocean Drilling Program,College Station,TX.(in press), (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Sakamoto, T.: "Leg 160 : 10ky scale records solving the orgin of sapropels over the last 5m.y." Gettukan Chikyu (Earth). 19. 98-105 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] ODP Legs 160 and 161 Shipboard Scientific Party: "Drilling Probes Mediterranean climate and oceanography" EOS. 77. 19-21 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Robertson, A.: "Mud volcanism on the Mediterranean Ridge" Geology. 24. 239-242 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Emeis, K.-C.: Proceedings of the Ocean Drilling Program, Initial Reports. Ocean Drilling Program, College Station, TX., vol.160, 1-972 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Emeis, K.-C.: Proceedings of the Ocean Drilling Program, Scientific Results. Ocean Drilling Program, College Station, TX., vol.160, (in press), (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 坂本竜彦: "Leg160:Sapropelsの形成の謎に迫る過去500万年間の1万年単位の記録" 月刊地球. 19・. 98-105 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] ODP Legs 160 and 161 shipboand scientifc party: "Drilling Probes Mediterranean clinate and oceanography" EOS. 77・. 19-21 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Robertson,A.: "Mud volcanism on the Mediterranean Ridge" Geology. 24・. 239-242 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Emeis,K.-C.: "Proceedings of the Ocean Drilling Program,Intial Reports" Ocean Drilling Program,College Station,TX., 972 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Emeis,K.-C.: "Proceedings of the Ocean Drilling Program,Scientific Results" Ocean Drilling Program,College station,TX.(in press), (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Koizumi, I.: "Diatom thanatocoenoses in S5 sapropel of 160-971C-2H-3" Paleoceanography. (1998年に発表予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] 坂本竜彦: "東地中海の砕屑物フラックスの第四紀後期における変動" 地質学雑誌. (1998年に発表予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] 大場忠道: "東地中海ODPコア中の有孔虫殻の酸素・炭素同位体比による古環境変遷" 第四紀研究. (1998年に発表予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] 南川雅男: "東地中海ODPコア969Fサプロペル中の有機態炭素・窒素同位体組成について" 第四紀研究. (1998年に発表予定).

    • Related Report
      1996 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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