2006 Fiscal Year Final Research Report Summary
Reconstruction of Earth's surface environments in the Late Archean based on the scientific drilling of the Dharwar Craton, south India
| Project/Area Number |
17403012
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | The University of Tokyo |
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Principal Investigator |
KATO Yasuhiro The University of Tokyo, Graduate School of Engineering, Associate Professor (40221882)
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| Co-Investigator(Kenkyū-buntansha) |
KANO Takashi Yamaguchi University, Graduate School of Science and Engineering, Professor (60108264)
KUNUGIZA Keitaro Toyama University, Faculty of Human Development, Professor (30225180)
SUZUKI Katsuhiko JAMSTEC, IFREE, Group Leader (70251329)
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| Project Period (FY) |
2005 – 2006
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| Keywords | banded iron formation / Late Archean / Dharwar Craton / Earth's surface environment |
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| Research Abstract |
The aim of our study was to reconstruct Earth's surface environments in the Late Archean based on the scientific drilling of the Dharwar Craton, south India. We have gained research results as follows.
Global environmental changes have been constrained from rare earth element geochemistry of Precambrian banded iron formations in the major cratons including the Dharwar Craton. The presence of pronounced negative Ce anomalies in Late Archean Dharwar BIFs suggests that strongly oxygenated oceanic conditions like today emerged by 2.9-2.7 Ga. This suggestion is consistent with geologic evidence that small but widespread Mn deposits formed during Late Archean time. The Hamersley and Transvaal IFs have less noticeable Ce anomalies. These BIFs were deposited on an evolving rift in a land-locked ocean that became anoxic due to intense hydrothermal activity. The 2.2-2.1 Ga Superior-type IFs exhibit distinct negative Ce anomalies, but the ca. 1.9 Ga Ifs and the ca. 0.7 Ga IFs have less distinct Ce
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anomalies. These variations in Ce/Ce* values of the post-2.7 Ga BIFs may reflect the episodicity in global mantle plume activity that created locally anoxic basins. The Archean Algoma-type BIFs have distinctly positive but variable Eu anomalies. Their strong positive Eu anomalies suggest large contributions of hydrothermal fluids to the seawater involved in BIF precipitation. The large variation in Eu anomalies in Algoma-type BIFs reflects the large variation in mixing ratios of hydrothermal fluids and ambient seawaters at various depositional sites. However, the post-2.7 Ga Superior-type BIFs exhibit much lower and constant Eu/Eu* values (0.7-1.9). This implies that the REE chemistry of the basin water that hosted voluminous Superiortype BIFs was influenced by a riverine influx from the surrounding continent that grew rapidly due to global mantle plume activity, besides the intense hydrothermal influx. These important findings were published in Geological Society of America Memoir. Other research results were published in many prestigious international journals including Earth and Planetary Science Letters, Precambrian Research, Lithos and Marine Geology. Less
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Research Products
(71 results)
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[Journal Article] Low blank and precise Sr-Nd-Pb analysis and in-situ Sr analysis of minerals in volcanic rocks.2007
Author(s)
Miyazaki, T., Takahashi, T., Hirahara, Y., Chang, Q., Vaglarov, B. S., Suzuki, K., Tatsumi, Y.
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Journal Title
IFREE REPORT for 2005-2006 vol. 3
Pages: 72-76
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Highly reproducible Re-Os isotope analysis of the samples with extremely low Re and Os concentration through total evaporation in TIMS.2007
Author(s)
Suzuki, K., Senda, R., Honda, M., Abe, K., Shinotsuka, K., Miyata, Y.
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Journal Title
IFREE REPORT for2005-2006 vol. 3
Pages: 77-78
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Local structure of rhenium and radiogenic osmium in molybdenite.2007
Author(s)
Takahashi, Y., Uraga, T., Suzuki, K., Tanida, H. Terada, Y., Hattori, K. H.
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Journal Title
Geochimica et Cosmochimica Acta vol. 71
Pages: 5180-5190
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Os, Pb and Nd isotopic geochemistry of Permian Emeishan Continentflood basalts : Insights to source of large igneous province.2007
Author(s)
Xu, J. -F., Suzuki, K., Xu, Y. -G, Xiao, L., Mei, H. -J., Li, J.
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Journal Title
Geochimica et Cosmochimica Acta vol. 71
Pages: 2104-2119
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Low blank, precise Sr-Nd-Pb analysis and insitu Sr analysis of minerals in volcanic rocks.2007
Author(s)
Miyazaki, T., Takahashi, T., Hirahara, Y, Chang, Q., Vaglarov, B. S., Suzuki, K., Tatsumi, Y.
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Journal Title
IFREE REPORT for 2005-2006 vol. 3
Pages: 72-76
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Highly reproducible Re-Os isotope analysis of the samples with extremely low Re and Os concentration through total evaporation in TIMS.2007
Author(s)
Suzuki, K., Senda, R., Honda, M., Abe, K., Shinotsuka, K., Miyata, Y.
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Journal Title
IFREE REPORT for 2005-2006 vol. 3
Pages: 77-78
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Local structure of rhenium and radiogenic osmium in molybdenite.2007
Author(s)
Takahashi, Y., Uraga, T., Suzuki, K., Tanida, H., Terada, Y., Hattori, K. H.
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Journal Title
Geochimica et Cosmochimica Acta vol. 71
Pages: 5180-5190
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Os, Pb and Nd isotopic geochemistry of Permian Emeishan Continent flood basalts: Insights to source of large igneous province.2007
Author(s)
Xu, J.-E, Suzuki, K., Xu, Y-G, Xiao, L., Mei, H.-J., Li, J.
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Journal Title
Geochimica et Cosmochimica Acta vol. 71
Pages: 2104-2119
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Geochemistry and genesis of Ananai stratiform manganese deposit in the Northern Chichibu Belt, central Shikoku, Japan.2006
Author(s)
Fujinaga, K., Nozaki, T., Nishiuchi, T., Kuwahara, K., Kato, Y.
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Journal Title
Resource Geology vol. 56
Pages: 399-414
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Chemical and biological evolution of early Earth : Constraints from banded iron-formations.2006
Author(s)
Ohmoto, H., Watanabe, Y., Yamaguchi, K., Naraoka, H., Haruna, M., Kakegawa, T., Hayashi, K., Kato, Y.
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Journal Title
Evolution of Early Earth's Atmosphere, Hydrosphere, and Biosphere : Constraints from Ore Deposit vol. 198
Pages: 291-331
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Ultramafics-Hydrothermalism-Hydrogenesis-HyperSLiME (UltraH^3) linkage : a key insight into early microbial ecosystem in the Archean deep-sea hydrothermal systems.2006
Author(s)
Takai, K., Nakamura, K., Suzuki, K., Inagaki, F., Nealson, K. H., Kumagai, H.
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Journal Title
Paleontological Research vol. 10
Pages: 269-282
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Identification of pyrite using ^<57>Fe Mossbauer spectroscopy combined with a series of acidic treatment in core sediments from Erhai Lake, SW China.2006
Author(s)
Zheng, G., Suzuki, K., Takahashi, Y., Shimizu, H. Kuno, A., Matsuo, M.
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Journal Title
Journal of Radioanalytical and Nuclear Chemistry. Vol. 269
Pages: 43-50
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Geochemistry and genesis of Ananai stratiform manganese deposit in the Northern Chichibu Belt, central Shikoku. Janan.2006
Author(s)
Fujinaga, K., Nozaki, T., Nishiuchi, X, Kuwahara, K., Kato, Y.
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Journal Title
Resource Geology. vol. 56
Pages: 399-414
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Chemical and biological evolution of early Earth: Cnnstraints from banded irnn-fnrtnntinns.2006
Author(s)
Ohmoto, H., Watanabe, Y, Yamaguchi, K., Naraoka, H., Haruna, M., Kakegawa, T., Hayashi, K., Kato, Y.
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Journal Title
Evolution of Early Earth's Atmosphere, Hydrosphere, and Biosphere: Constraints from Ore Deposits vol. 198
Pages: 291-331, doi: 10.1130/2006.1198
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Ultramafics-Hydrothermalism -Hydrogenesis-HyperSLiME (UltraH^3) linkage: a key insight into early microbial ecosystem in the Archean deep-sea hydrothermal systems.2006
Author(s)
Takai, K., Nakamura, K., Suzuki, K., Inagaki, F., Nealson, K. H., Kumagai, H.
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Journal Title
Paleontological Research vol. 10
Pages: 269-282
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Identification of pyrite using ^<57>Fe Mossbauer spectroscopy combined with a series of acidic treatment in core sediments from Erhai Lake. SW China.2006
Author(s)
Zheng, G., Suzuki, K., Takahashi, Y., Shimizu, H., Kuno, A., Matsuo, M.
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Journal Title
Journal of Radioanalytical and Nuclear Chemistry vol. 269
Pages: 43-50
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Rare Earth, Major and Trace Elements in the Kunimiyama Ferromanganese Deposit in the Northern Chichibu Belt, Central Shikoku, Japan.2005
Author(s)
Kato, Y., Fujinaga, K., Nozaki, T., Osawa, H., Nakamura, K., Ono, R.
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Journal Title
Resource Geology vol. 55
Pages: 291-299
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Speciation of osmium in an iron meteorite and a platinum ore specimenbased on X-ray absorption fine-structure spectroscopy.2005
Author(s)
Sakakibara, N., Takahashi, Y., Okumura, K., Hattori, K. H., Yaita, T., Suzuki, K., Shimizu, H.
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Journal Title
Geochemical Journal vol. 39
Pages: 383-389
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Geochemical Features and Tectonic Setting of Greenstones from Kunimiyama, Northern Chichibu Belt, Central Shikoku, Japan.2005
Author(s)
Nozaki, T., Nakamura, K., Osawa, H., Fujinaga, K., Kato, Y.
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Journal Title
Resource Geology vol. 55
Pages: 301-310
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Rare Earth, Major and Trace Elements in the Kunimiyama Ferromanganese Deposit in the Northern Chichibu Belt. Central Shikoku. Japan.2005
Author(s)
Kato, Y, Fujinaga, K., Nozaki, T., Osawa, H., Nakamura, K., Ono, R.
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Journal Title
Resource Geology vol. 55
Pages: 291-299
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Speciation of osmium in an iron meteorite and a platinum ore specimen based on X-ray absorption fine-structure spectroscopy.2005
Author(s)
Sakakibara, N., Takahasni, Y., Okumura, K., Hatton, K. H., Yaita, T., Suzuki, K., Shimizu, H.
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Journal Title
Geochemical Journal vol. 39
Pages: 383-389
Description
「研究成果報告書概要(欧文)」より
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