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Investigation on evaluation for mineralization potential of magmatic hydrothermal systems

Research Project

Project/Area Number 10305076
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 資源開発工学
Research InstitutionKyushu University

Principal Investigator

IZAWA Eiji  Kyushu Univ., Dept. of Earth Resources Eng., Professor, 大学院・工学研究院, 教授 (50037751)

Co-Investigator(Kenkyū-buntansha) NAKANISHI Tetsuya  Kyushu Univ. Museum, Associate professor, 総合研究博物館, 助教授 (50315115)
ZENG Nanshi  Kyushu Univ., Dept. of Earth Resources Eng., Research Assistance, 大学院・工学研究院, 助手 (20294887)
WATANABE Koichiro  Kyushu Univ., Dept. of Earth Resources Eng., Associate Professor, 大学院・工学研究院, 助教授 (10182916)
TAGUCHI Sachihiro  Fukuoka Univ., Dept. of Earth Science, Professor, 理学部, 教授 (00108771)
MOTOMURA Yoshinobu  Kyushu Univ., Dept. of Earth and Planet. Sciences, Research Assistance, 大学院・理学研究院, 助手 (20037237)
Project Period (FY) 1998 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥31,510,000 (Direct Cost: ¥31,000,000、Indirect Cost: ¥510,000)
Fiscal Year 2001: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2000: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1999: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1998: ¥25,500,000 (Direct Cost: ¥25,500,000)
Keywordsmineralization potential / magmatic hyrdrothermal systems / Hishikari / alteration zoning / age determination / boiling zones / autoclave experiments / adsorption experiments / シンター / 金の吸着実験 / レーザーラマン分光法 / 沸騰帯 / 流通式オートクレーブ / アダカイト / XRF / 菱刈 / 金鉱床
Research Abstract

To develop the evaluation procedure for the mineralization potential of magmatic hydrothermal systems the evolution of systems and factors controlling concentration of metals were examined on several important systems, emphasizing three dimensional structures, distribution of the boiling zone and information of the shallow part of systems. Major areas include Lepanto/FSE-Victoria, Kasuga, Hishikari, Kushikino, Fuke, Cibaliung, Iwami, Northern Queensland, Hoshino and Noya. Together with some experimental works the following important results were obtained.
1. Adakitic volcanic rocks were found in the areas of Kushikino, Hoshino and Iwami.
2. Age determination using fission track, K-Ar and ^<40>Ar/^<39>Ar methods for volcanic rocks and ores clearly showed that in a certain area the hydrothermal activity starts about 500,000 years after the commencement of the volcanic activity, and continues about 500,000 years with intermittent fracture formation.
3. If shallow part of a system is preserved, sinters may exist and the higher gold content of sinters indicates the possible gold mineralization.
4. The regional thermal structure of a hydrothermal system is constructed by hydrothermal alteration zoning. The area bounded by 150-200 C isotherms indicates the fracture system and extends for 3 km by 4 km.
5. Boiling zones are indicated by occurrence of bladed calcite/quartz, adularia and truscottite, and also by characteristics of fluid inclusions.
6. Flow-through type autoclave experiments indicate that concentrations of Si, Al and Ca in hydrothermal waters increase transiently during fracture formation.
7. Adsorption experiments of gold on Al and Fe(III) hydroxides suggest that deposition of gold is strongly controlled by adsorption process.

Report

(5 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (31 results)

All Other

All Publications (31 results)

  • [Publications] Eiji IZAWA: "Hishikari gold mineralization : A case study of the Hosen No. 1 vein hosted by basement Shimanto sedimentary rocks"Soc. Economic Geologists, Guidebook Ser.. Vol.34. 21-30 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 井澤英二: "日本の金山の歴史と菱刈鉱山"金山史研究. 2集. 5-23 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Akiko UCHIDA: "Gold content in siliceous deposits formed from acidic and iron-rich geothermal waters at Hatchobaru, central Kyushu, Japan"Resource Geology. Vol.51. 269-271 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Koichiro WATANABE: "^<40>Ar/^<39>Ar geochronology of high-grade epithermal gold veins at Hishikari deposit, southern Kyushu, Japan"Proc. Int. Symp. Gold and Hydrothermal Systems. 105-110 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Nanshi ZENG: "Silver mineralogy and paragenesis in the Kangjiawan Pb-Zn-Ag-Au deposit of the Shuikoushan Mineral District, Hunan Province, China"The Canadian Mineralogist. Vol.38. 11-22 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sachihiro TAGUCHI: "Hydrothermal activity of silicified rock formation in low sulfidation epithermal gold deposits at Fuke, southern Kyushu, Janan"Proc. Int. Symp. Gold and Hydrothermal Systems. 57-60 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Eiji IZAWA: "Gold and Hydrothermal Systems"Kyushu University. 184 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Ahmad BELHADI: "Geology and zircon fission track ages of volcanic rocks in the western part of Hoshino gold area, Fukuoka Prefecture, Japan"Jour. Miner. Petr. Econ. Vol.95. 482-494 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Nanshi ZENG: "Silver mineralogy and paragenesis in the Kangjiawan Pb-Zn-Ag-Au deposit of the Shuikoushan Mineral District, Hunan Province, China"The Canadian Mineralogist. Vol.38. 11-22 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Fumio INAGAKI: "Effect of Thermophilic Bacteria on the Siliceous Deposition and Phylogenetic Analysis of the Bacterial Diversity in Silica Scale"Jour. Fac. Agr. Kyushu Univ.. Vol.44, No. 3/4. 309-316 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takushi YOKOYAMA: "Uptake of Au(III) Ions by Aluminum Hydroxide and Their Spontaneous Reduction to Elemental Gold (Au(0))"Jour. Colloid and Interface Sci.. Vol.233. 112-116 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Eiji IZAWA: "Hishikari gold mineralization : A case study of the Hosen No. 1 vein hosted by basement Shimanto sedimentary rocks, southern Kyushu, Japan"Soc. Economic Geologists, Guidebook Ser.. Vol.34. 21-30 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sachihiro TAGUCHI: "Hydrothermal activity of silicified rock formation in low sulfidation epithermal gold deposits at Fuke, southern Kyushu, Japan"Proc. Int. Symp. on Gold and Hydrothermal Systems. 57-60 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Koichiro WATANABE: "^<40>Ar/^<39>Ar geochronology of high-grade epithermal gold veins at Hishikari deposit, southern Kyushu, Japan"Proc. Int. Symp. On Gold and Hydrothermal Systems. 105-110 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Akiko UCHIDA: "Gold content in siliceous deposits formed from acidic and iron-rich geothermal waters at Hatchobaru, central Kyushu, Japan"Resource Geology. Vol.51, No.3. 269-271 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Agung HARIJOKO: "Hydrothermal alteration in the Francis Creek area, North Queensland, Australia"Proc. Int. Symp. On Gold and Hydrothermal Systems. 135-140 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Misuzu HONDA: "Paragenesis at the high grade Hosen No.1 vein of the Hishikari gold deposit, Japan"Proc. Int. Symp. on Gold and Hydrothermal Systems. 117-112 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takamoto Okudaira: "Cooling and inferred exhumation history of the Ryoke metamorphic belt in the Yanai district, south-west Japan : Constraints from Rb-Sr and fission-track ages of gneissose granitoid and numerical modeling"The Island Arc. Vol.10. 98-115 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Eiji IZAWA: "Hishikari gold mineralization : A case study of the Hosen No.1 vein hosted by basement Shimanto sedimentary rocks, southern Kyushu, Japan"Soc.Economic Geologist, Guidebook Ser. Vol.34. 21-30 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Eiji IZAWA: "Kushikino gold mineralization in a Pliocene Volcanic region, Kyushu, Japan"Soc.Economic Geologist, Guidebook Ser. Vol.34. 53-60 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Koichiro WATANABE: "^<40>Ar/^<39> geochronology of high-grade epithermal gold veins at Hishikari deposit, southern Kyushu, Japan"Proc.Int.Symp.on Gold and Hydrothermal Systems. 105-110 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Sachihiro TAGUCHI: "Hydrothermal activity of silicified rock formation in low sulfidation epithermal gold deposits at Fuke, southern Kyushu, Japan"Proc.Int.Symp.on Gold and Hydrothermal Systems. 57-60 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Akiko USHIDA: "Gold content in siliceous deposits formed from acidic and iron-rich geothermal waters at Hatchobaru, central Kyushu, Japan"Resource Geology. Vol.51. 269-271 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 井澤英二: "日本の金山の歴史と菱刈鉱山"金山史研究. 2集. 5-23 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Eiji IZAWA: "Gold and Hydrothermal Systems"Kyushu University. 184 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nanshi ZENG et al.: "Silver mineralogy and paragenesis in the Kangjiawan Pb-Zn-Ag-Au deposit of the Shuikoushan Mineral District, Hunan Province, China"The Canadian Mineralogist. Vol.38. 11-22 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] B.BAJNOCZI et al.: "Shallow level low-sulphidation type epithermal systems in the Regec caldera, Central Tokaj Mts, NE-Hungary"Geologica Carpathica. Vol.51,No.4. 217-227 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Takushi YOKOYAMA et al.: "Uptake of Au (III) Ions by Aluminum Hydroxide and Their Spontaneous Reduction to Elemental Gold (Au(0))"Jour.Colloid & Interface Science. Vol.233. 112-116 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Akiko UCHIDA et al.: "A concentration mechanism of gold in siliceous deposits formed from geothermal wate"Proc.22nd New Zealand Gethermal Workshop. 57-62 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Belhadi,A.: "Geology and zircon fission track ages of volcanic recks in the western part of Hoshinc gold ares.Fukuoka Prefecture,Japan"Jour Min,Pet,Econ,Geol.. 94巻.12号. 482-494 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Satoshi KAJINO: "Spatial Varialion in Major VeinMinarals at Hishikavi Gold Peposit." Proc.Russian-Japan “Minaralijatianin Arc“. 86-88 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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