• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Deciphering surface environment in the late Proterozoic using Re-Os measurement.

Research Project

Project/Area Number 24840021
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Geology
Research InstitutionTokyo Institute of Technology

Principal Investigator

SAWAKI Yusuke  東京工業大学, 理工学研究科, 助教 (00635063)

Project Period (FY) 2012-08-31 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords後期原生代 / レニウム・オスミウム / Sulfidic / 南中国三峡地域 / 南中国 / ReOsアイソクロン / 黒色頁岩
Research Abstract

Global correlation of Precambrian stratigraphic successions can be conducted by the coarse resolution off biostratigraphic and chemostratigraphic records, because of the scarcity of precise U-Pb zircon dating. Re-Os isotope systems of organic matter-rich black shales became one of the reliable indicators of the depositional age, due to the recent developments in Re-Os analysis.
Rock powders were prepared from drill-core collected at Three Gorge, South China. Re and Os isotopic compositions were measured by TIMS at JAMSTEC. The 187Re/188Os and 187Os/188Os ratios of the black shales show linearity in the isochron plot. The model 3 isochron ages were 578 Ma (error is 12 Ma) for the black shale at the lower Member 4 of the Doushantuo Fm, with initial 187Os/188Os ratios of 1.02 (2SD=0.09). The Re-Os isochron plot for all analyses yields an age of 512 (error is 12 Ma) for the black shale at the bottom of the Shuijingtuo Fm, with initial 187Os/188Os ratios of 1.15 (2SD=0.19).

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • Research Products

    (40 results)

All 2014 2013 2012 Other

All Journal Article (28 results) (of which Peer Reviewed: 26 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (10 results) Remarks (2 results)

  • [Journal Article] The anomalous Ca cycle in the Ediacaran ocean : evidence from Ca isotopes preserved in carbonates in the Three Gorges area, South China2014

    • Author(s)
      Y Sawaki, 他7名
    • Journal Title

      Gondwana Research

      Volume: 25 Pages: 1070-1089

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Initiation of leaking Earth : An ultimate trigger of the Cambrian explosion2014

    • Author(s)
      S Maruyama, Y Sawaki, 他4名
    • Journal Title

      Gondwana Research

      Volume: 25 Pages: 910-944

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] The Cambrian Explosion : Plume-driven birth of the second ecosystem on Earth2014

    • Author(s)
      M Santosh, Y Sawaki, 他2名
    • Journal Title

      Gondwana Research

      Volume: 25 Pages: 945-965

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] New chronological constraints for Cryogenian to Cambrian rocks in the Three Gorges, Weng'an and Chengjiang areas, South China2014

    • Author(s)
      Y Okada, Y Sawaki, 他6名
    • Journal Title

      Gondwana Research

      Volume: 25 Pages: 1027-1044

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Nitrogen isotope chemostratigraphy of the Ediacaran and Early Cambrian platform sequence at Three Gorges, South China2014

    • Author(s)
      R Kikumoto, Y Sawaki , 他6名
    • Journal Title

      Gondwana Research

      Volume: 25 Pages: 1057-1069

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] In-situ analyses of phosphorus contents of carbonate minerals : Reconstruction of phosphorus contents of seawater from the Ediacaran to early Cambrian2014

    • Author(s)
      T Shimura, Y Sawaki, 他5名
    • Journal Title

      Gondwana Research

      Volume: 25 Pages: 1090-1107

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] The anomalous Ca cycle in the Ediacaran ocean: evidence from Ca isotopes preserved in carbonates in the Three Gorges area, South China2014

    • Author(s)
      Y. Sawaki, M. Tahata, T. Ohno, T. Komiya, T. Hirata, S. Maruyama, J. Han, D. Shu
    • Journal Title

      Gondwana Research

      Volume: 25 Issue: 3 Pages: 1070-1089

    • DOI

      10.1016/j.gr.2013.03.008

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Cambrian Explosion: Plume-driven birth of the second ecosystem on Earth2014

    • Author(s)
      Santosh, M., Maruyama, S., Sawaki, Y., Meert, J. G.
    • Journal Title

      Gondwana Research

      Volume: 25 Issue: 3 Pages: 945-965

    • DOI

      10.1016/j.gr.2013.03.013

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] New chronological constraints for Cryogenian to Cambrian rocks in the Three Gorges, Weng’an and Chengjiang areas, South China2014

    • Author(s)
      Okada, Y., Sawaki, Y., Komiya, T., Hirata, T., Takahata, N., Sano, Y., Han, J., Maruyama, S.
    • Journal Title

      Gondwana Research

      Volume: 25 Issue: 3 Pages: 1027-1044

    • DOI

      10.1016/j.gr.2013.05.001

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In-situ analyses of phosphorus contents of carbonate minerals: Reconstruction of phosphorus contents of seawater from the Ediacaran to early Cambrian2014

    • Author(s)
      Shimura, T., Kon, Y., Sawaki, Y., Hirata, T., Han, J., Shu, D., Komiya, K.
    • Journal Title

      Gondwana Research

      Volume: 25 Issue: 3 Pages: 1090-1107

    • DOI

      10.1016/j.gr.2013.08.001

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Zircon U-Pb dating from the mafic enclaves in the Tanzawa Tonalitic Pluton, Japan: Implications for arc history and formation age of the lower-crust2014

    • Author(s)
      Suzuki, K., Yamamoto, S., Sawaki, Y., Aoki, K., Omori, S., Kon, Y., Hirata, T., Li, Y., Takaya, Y., Fujinaga, K., Kato, Y., Maruyama, S.
    • Journal Title

      Lithos

      Volume: 196-197 Pages: 301-320

    • DOI

      10.1016/j.lithos.2014.02.010

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Accreted Kula plate fragment at 94 Ma in the Yokonami-melange, Shimanto-belt, Shikoku, Japan2014

    • Author(s)
      Saito, T., Okada, Y., Fujisaki, W., Sawaki, Y., Sakata, S., Dohm, J., Maruyama, S., Hirata, T.
    • Journal Title

      Tectonophysics

      Volume: 623 Pages: 136-146

    • DOI

      10.1016/j.tecto.2014.03.026

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Carbon and oxygen isotope chemostratigraphies of the Yangtze platform, South China : Decoding temperature and environmental changes through the Ediacaran2013

    • Author(s)
      M Tahata, Y Sawaki, 他9名
    • Journal Title

      Gondwana Research

      Volume: 23 Pages: 333-353

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Chemical composition and K–Ar age of Phengite from Barrovian metapelites, Loch Leven, Scotland2013

    • Author(s)
      K Aoki, Y Sawaki, 他7名
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 119 Pages: 437-442

    • NAID

      130004756747

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Initiation of leaking Earth: An ultimate trigger of the Cambrian explosion2013

    • Author(s)
      Maruyama, S., Sawaki, Y., Ebisuzaki, T., Ikoma, M., Omori, S., Komabayashi, T.
    • Journal Title

      Gondwana Research

      Volume: 25 Issue: 3 Pages: 910-944

    • DOI

      10.1016/j.gr.2013.03.012

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The anomalous Ca cycle in the Ediacaran ocean: evidence from Ca isotopes preserved in carbonates in the Three Gorges area, South China2013

    • Author(s)
      Yusuke Sawaki
    • Journal Title

      Gondwana Research

      Volume: in press

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Carbon and oxygen isotope chemostratigraphies of the Yangtze platform, South China: Decoding temperature and environmental changes through the Ediacaran.2013

    • Author(s)
      Miyuki Tahata
    • Journal Title

      Gondwana Research

      Volume: 23 Pages: 333-353

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Chemical composition and K–Ar age of Phengite from Barrovian metapelites, Loch Leven, Scotland2013

    • Author(s)
      Kazumasa Aoki
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: in press

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Initiation of leaking Earth: An ultimate trigger of the Cambrian explosion2013

    • Author(s)
      Shigenori Maruyama
    • Journal Title

      Gondwana Research

      Volume: in press

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Cambrian Explosion: Plume-driven birth of the second ecosystem on Earth2013

    • Author(s)
      M. Santosh
    • Journal Title

      Gondwana Research

      Volume: in press

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Depth variation of carbon and oxygen isotopes of calcites in Archean altered upper oceanic crust in the Archean2012

    • Author(s)
      T Shibuya, Y Sawaki, 他10名
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 321-322 Pages: 64-73

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] In situ iron isotope analyses of pyrite and organic carbon isotope ratios in the Fortescue Group : Metabolic variations of a Late Archean ecosystem2012

    • Author(s)
      K Yoshiya, Y Sawaki, 他8名
    • Journal Title

      Precambrian Research

      Volume: 212-213 Pages: 169-193

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] エディアカラ紀ーカンブリア紀の地球表層環境変化2012

    • Author(s)
      澤木佑介
    • Journal Title

      生物の科学遺伝

      Volume: 66 Pages: 502-508

    • Related Report
      2013 Final Research Report
  • [Journal Article] In situ iron isotope analyses of pyrite and organic carbon isotope ratios in the Fortescue Group: Metabolic variations of a Late Archean ecosystem.2012

    • Author(s)
      Kazumi Yoshiya
    • Journal Title

      Precambrian Research

      Volume: 212-213 Pages: 169-193

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Depth variation of carbon and oxygen isotopes of calcites in Archean altered upper oceanic crust in the Archean.2012

    • Author(s)
      Takazo Shibuya
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 321-322 Pages: 169-193

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] エディアカラ紀ーカンブリア紀の地球表層環境変化2012

    • Author(s)
      澤木佑介
    • Journal Title

      生物の科学 遺伝

      Volume: 66(5) Pages: 502-508

    • Related Report
      2012 Annual Research Report
  • [Journal Article] Zircon U–Pb dating from the mafic enclaves in the Tanzawa Tonalitic Pluton, Japan : Implications for arc history and formation age of the lower-crust

    • Author(s)
      K Suzuki, Y Sawaki, 他10名
    • Journal Title

      Lithos

      Volume: (in press)

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Accreted Kula plate fragment at 94 Ma in the Yokonami-Melange, Shimanto-Belt, Shikoku, Japan

    • Author(s)
      T Saito, Y Sawaki, 他6名
    • Journal Title

      Tectonophysics

      Volume: (in press)

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Presentation] Oxic ocean in the late Ediacaran and early Cambrian2013

    • Author(s)
      澤木佑介, 他6名
    • Organizer
      日本地質学会第120年学術大会
    • Place of Presentation
      東北大学 (仙台)
    • Year and Date
      2013-09-15
    • Related Report
      2013 Final Research Report
  • [Presentation] Intensive continental weathering rate in the Lower Cambrian : evidenced from Sr isotope ratios preserved in the strata at the Three Gorges2013

    • Author(s)
      澤木佑介, 他2名
    • Organizer
      日本地球惑星科学連合2013年大会
    • Place of Presentation
      幕張メッセ (千葉)
    • Year and Date
      2013-05-19
    • Related Report
      2013 Final Research Report
  • [Presentation] Intensive continental weathering rate in the Lower Cambrian: evidenced from Sr isotope ratios preserved in the strata at the Three Gorges2013

    • Author(s)
      澤木佑介、小宮剛、丸山茂徳
    • Organizer
      日本地球惑星科学連合2013年大会
    • Place of Presentation
      幕張メッセ(千葉)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Oxic ocean in the late Ediacaran and early Cambrian2013

    • Author(s)
      澤木佑介、野崎達生、仙田量子、鈴木勝彦、小宮 剛
    • Organizer
      日本地質学会第120年学術大会
    • Place of Presentation
      東北大学(仙台)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Petro-genesis of Mn-ore in the Neoproterozoic2012

    • Author(s)
      澤木佑介, 他4名
    • Organizer
      日本地質学会第119年学術大会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2012-09-15
    • Related Report
      2013 Final Research Report
  • [Presentation] The ferruginous ocean in the Ediacaran; evidence from iron isotope ratios in pyrite2012

    • Author(s)
      澤木佑介, 他6名
    • Organizer
      日本地球惑星科学連合2012年大会
    • Place of Presentation
      幕張メッセ (千葉)
    • Year and Date
      2012-05-24
    • Related Report
      2013 Final Research Report
  • [Presentation] The stepwise surface environmental changes during the Ediacaran and Cambrian2012

    • Author(s)
      澤木佑介, 丸山茂徳
    • Organizer
      日本地球惑星科学連合2012年大会
    • Place of Presentation
      幕張メッセ (千葉)
    • Year and Date
      2012-05-21
    • Related Report
      2013 Final Research Report
  • [Presentation] Petro-genesis of Mn-ore in the Neoproterozoic.2012

    • Author(s)
      澤木佑介
    • Organizer
      日本地質学会第119年学術大会
    • Place of Presentation
      大阪府立大学(大阪府)
    • Related Report
      2012 Annual Research Report
  • [Presentation] カナダ・ラブラドル地域(3.8Ga)の地質とジルコン年代2012

    • Author(s)
      下條将徳
    • Organizer
      日本地質学会第119年学術大会
    • Place of Presentation
      大阪府立大学(大阪府)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 初期太古代Labrador地域Nulliak表成岩中の縞状鉄鉱層、炭酸塩岩、チャートの産状と地球化学的研究2012

    • Author(s)
      青木翔吾
    • Organizer
      日本地質学会第119年学術大会
    • Place of Presentation
      大阪府立大学(大阪府)
    • Related Report
      2012 Annual Research Report
  • [Remarks] 東京工業大学ホームページ

    • URL

      http://t2r2.star.titech.ac.jp/cgi-bin/researcherinfo.cgi?q_researcher_content_number=CTT100511199

    • Related Report
      2013 Final Research Report
  • [Remarks] 海洋研究開発機構ホームページ

    • URL

      http://www.jamstec.go.jp/personal/003342.html

    • Related Report
      2013 Final Research Report

URL: 

Published: 2012-11-27   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi