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2005 Fiscal Year Final Research Report Summary

Academic investigation of hot spring's microbial mats included high concentration of heavy metals (Au,Ag,Hg,Sr).

Research Project

Project/Area Number 14405001
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Geology
Research InstitutionKanazawa University

Principal Investigator

TAZAKI Kazue  Kanazawa University, Graduate School of Natural Science and Technology, Professor, 自然科学研究科, 教授 (80211358)

Co-Investigator(Kenkyū-buntansha) ARAI Shoji  Kanazawa University, Graduate School of Natural Science and Technology, Professor, 自然科学研究科, 教授 (20107684)
FUKUMORI Yoshihiro  Kanazawa University, Graduate School of Natural Science and Technology, Professor, 自然科学研究科, 教授 (60135655)
OKUNO Masayuki  Kanazawa University, Graduate School of Natural Science and Technology, Professor, 自然科学研究科, 教授 (40183032)
ASADA Ryuji  Kanazawa University, Venture business laboratory, Lecturer, ベンチャービジネスラボラトリー, 講師
KIDO Yukari  JAMSTEC, IFREE, Researcher, 固体地球統合フロンティア, 技術研究員 (20359194)
Project Period (FY) 2002 – 2005
Keywordsheavy metal / hot spring's biomat / microorganism / biomineralization / geothermal area / gold deposit / hokutolite / radioactivity
Research Abstract

In 2002 and 2003,field researches were carried out to investigate biomats in geothermal area and in hot springs in Kamchatka, Russia. We have observed bacteria in all cases which precipitate a significant amount of various heavy metals. In 2004,filed studies were achieved focusing biomats in Hokuto Hot Springs, Taiwan, and Tamagawa Hot Springs, Japan. The both hot springs are famous of precipitation of hokutolite, radioactive barite. In this study we observed γ-ray radioactivity of ^<226>Ra (42.2 Bq/g) and ^<228>Ra (1.35 Bq/g), and this indicate that ^<226>Ra of uranium series is predominant. In 2005,a collaborative research with the group of Prof.Muhongo, Dar Es Salaam University, Tanzania, was carried out targeting a mercury-pollution caused by the small-scale gold mining around Geita, on the south coast of Lake Victoria, Tanzania. Samples of water, sediments, soil, biomats and aerial dusts were collected around ten small-scale mining sites, and many observations were made such as mineral identification, analyses of chemical compositions, etc. Optical microscopy and electron microscopy elucidated mercury distribution concentrated around the cell of microorganisms and clay mineral particles. All these field researches and laboratory works on biomats found in geothermal area, hot springs and metal mines elucidated atmosphere-water-soil-microorganisms interactions and biomineralization. An important role of microorganisms and mechanisms in formation of heavy metal minerals were clarified in nanometer-scale using electron microscopes. These results are fundamental data valuable for application of bioremediation in heavy metal-polluted area.

  • Research Products

    (14 results)

All 2006 2005

All Journal Article (13 results) Book (1 results)

  • [Journal Article] アスベストの代替品ロックウールの特性と安全性について2006

    • Author(s)
      田崎 和江, 朝田 隆二, 渡辺 弘明, 白木 康一
    • Journal Title

      岩石鉱物科学 35

      Pages: 22-33

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Proof for Bio-sedimentation in Caraja's BIF2006

    • Author(s)
      Kazue Tazaki, Masayuki Okuno, William S.Fyfe
    • Journal Title

      ペドロジスト 49・2

      Pages: 99-108

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ヒドロダマリス亜科Hydrodamalinae(海牛目:ジュゴン科)における下顎と脊柱の運動機能に関する進化的変化2006

    • Author(s)
      小林 昭二, 田崎 和江
    • Journal Title

      地球科学 60・1

      Pages: 49-62

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Characterization and its safety of man-made rock-wool fibers2006

    • Author(s)
      Kazue Tazaki, Ryuji Asada, Hiroaki Watanabe, Koichi Shiraki
    • Journal Title

      Japanese Magazine of Mineralogical and Petrological Sciences 35

      Pages: 22-33

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Fyfe Proof for Bio-sedimentation in Caraja's BIF2006

    • Author(s)
      Kazue Tazaki, Masayuki Okuno, William S.
    • Journal Title

      Pedologist 49-2

      Pages: 99-108

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Evolutional change of the masticating and spinal movement in Hydrodamalinae2006

    • Author(s)
      Shoji Kobayashi, Kazue Tazaki
    • Journal Title

      Earth Science 60-1

      Pages: 49-62

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Microbial Formation of A Halloysite-Like Mineral2005

    • Author(s)
      Kazue Tazaki
    • Journal Title

      Clays and Clay Minerals 55・3

      Pages: 224-233

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Interaction between Clay Minerals and Hydrocarbon-Utilizing Indigenous Microorganisms in High Concentrations of Heavy Oil Implications for Bioremediation2005

    • Author(s)
      Chaerun S.Khodijah, Kazue Tazaki, Ryuji Asada, Kazuhiro Kogure
    • Journal Title

      Clay Minerals 40

      Pages: 105-114

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Structural Change and Cobalt Fixation in the Hydrothermally Synthesized Zeolite Phases from a Si-Al-Co Hydrous Oxide2005

    • Author(s)
      Nagase Takako, Abhijit Chatterjee, Alfred P.Tanaka, Margot L.Tanco, Kazue Tazaki
    • Journal Title

      Chemistry Letters 33・1

      Pages: 1416-1417

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Microbial Formation of A Halloysite-Like Mineral2005

    • Author(s)
      Kazue Tazaki
    • Journal Title

      Clays and Clay Minerals 55-3

      Pages: 224-233

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Interaction between Clay Minerals and Hydrocarbon-Utilizing Indigenous Microorganisms in High Concentrations of Heavy Oil : Implications for Bioremediation2005

    • Author(s)
      Chaerun S.Khodijah, Kazue Tazaki, Ryuji Asada, Kazuhiro Kogure
    • Journal Title

      Clay Minerals 40

      Pages: 105-114

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Structural Change and Cobalt Fixation in the Hydrothermally Synthesized Zeolite Phases from a Si-Al-Co Hydrous Oxide2005

    • Author(s)
      Nagase Takako, Abhijit Chatterjee, Alfred P.Tanaka, Margot L.Tanco, Kazue Tazaki
    • Journal Title

      Chemistry Letters 33-1

      Pages: 1416-1417

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Microbial Sedimentation on Heavy Metal-Biomineralogy ; In Case of Fe,Mn,As,and Sr2005

    • Author(s)
      Kazue Tazaki
    • Journal Title

      Heavy Metals in Soil Environment, Japanese Society of Soil Science and Plant Nutrition

      Pages: 157

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 土壌生成と重金属動態 III 重金属を運搬し、堆積させる微生物の働き (日本土壌肥料学会編)2005

    • Author(s)
      田崎 和江
    • Total Pages
      157
    • Publisher
      博友社
    • Description
      「研究成果報告書概要(和文)」より

URL: 

Published: 2007-12-13  

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