2004 Fiscal Year Final Research Report Summary
EVOLUTION OF GONDWANA - THE ANTARCTIC PERSPECTIVE WITH SHRIMP GEOCHRONOLOGY
Project/Area Number |
13440151
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Geology
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Research Institution | NATIONAL INSTIUTE OF POLAR R PARCH |
Principal Investigator |
SHIRAISHI Kazuyuki NATIONAL INSTITUTE OF POLAR RESERCH, DIVISION FOR RESEARCH AND EDUCATION, PROFESSOR, 研究教育系, 教授 (90132711)
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Co-Investigator(Kenkyū-buntansha) |
MOTOYOSHI Yoichi NATIONAL INSTIUTE OF POLAR R PARCH, DIVISION FOR RISEARCH AND EDUCATION, PROFESSOR, 研究教育系, 教授 (90211606)
MISAWA Keiji NATIONAL INSTIUTE OF POLAR R PARCH, DIVISION FOR RISEARCH AND EDUCATION, ASSOCIATE PROFESSOR, 研究教育系, 助教授 (70212230)
OWADA Masaaki YAMAGUCHI UNIVERSITY FACULTY OF SCIFNCE, ASSOCIATE PROFESSOR, 理学部, 助教授 (50213905)
OSANAI Yasuhito KYUSHU UNIVERSITY, GRADUATE SCHOOL OF SOCIAL AND CULTURAL STUDIES., PROFESSOR, 大学院・比較社会文化研究院, 教授 (80183771)
HOKADA Tomokazu NATIONAL INSTIUTE OF POLAR R PARCH, DIVISION FOR RESEARCH AND EDUCATION, RESEARCH ASSOCIATE, 研究教育系, 助手 (60370095)
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Project Period (FY) |
2001 – 2004
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Keywords | Gondwana / East Antarctica / SHRIMP / U-Pb age / Pan-African / Tectonic model / Napier Complex / Continental crust |
Research Abstract |
The Dronning Maud Land, which is the Indian sector of the East Antarctica is referred as the southern extension of the Pan-African Mozambique mobile belt, and is one of the best fields to elucidate the evolution of the Gondwana continental crust. The aim of this study is to reconstruct the tectonic model of the Gondwana using the meamorphic P-T paths combined with precise age data by SHRIMP. The major results are: 1) The Napier Complex consists of crustal fragments formed during 3.8-2.6 Ga, and the last orogeny was terminated in 2.52-2.46 Ga with the ultra-high temperature metamorphism. 2) Re-examination of the metamorphic and protolith ages of the Lutzow Holm Complex elucidated that the pre-Gondwana history is totally different from those in the Sor Rondane Mountans. Moreover, in the Sor Rondane Mts., two stages of the Pan-African events are recognized. These facts give the constraints far the tectonic history of the Gondwana 3) In the central Droning Maud Land, it is suggested that the inland mountain area and the Schirmacher Hill belong different tectonic units by comparison of modes of metamorphism, plutorism and preliminary SHRIMP ages. 4) The SHRIMP age dating for the late Grenvillian A-type granite bodies sporadically occurring in the Natal Belt of South Africa revealed the time-space transition of the igneous activity. 5) Studies on the continental crust of many areas from the world were performed as collaboration work using SHRIMP It Itsaq Complex in SW Greenland, the Harris Complex in NW Scotland, western Himalaya, the Kontum massif in Vietnam and Hidaka Belt and Kofu basin in Japan. 6) As a part of the study of the development and maintenance of the SHRIMP II at the National Institute of Polar Research, standardization of the U-Pb and Mn-Cr methods, and measurement of REE were performed. In addition zircon standard samples from Duluth Complex was prepared. New zircon standards were evaluated with the conventional U-Pb-Th isotope measurement.
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Research Products
(68 results)
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[Journal Article] SHRIMP and electron microprobe chronology of UHTmetamorphism in the Napier Complex, East Antarctica : implications for zircon growth at >1000°.2004
Author(s)
Hokada, T., Misawa, K., Yokoyama, K., Shiraishi, K., Yamaguchi, A.
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Journal Title
Contributions to Mineralogy and Petrology 147
Pages: 1-20
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Decompression process of mafic granulite from eclogite togranulite facies under ultrahigh-temperature condition in theKontum massif, central Vietnam.2004
Author(s)
Nakano, N., Osanai, Y,., Owada, M., Nam, T.N., Tsunogae, T., Toyoshima, T., Binh, P.
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Journal Title
Journal of Mineralogical and Petrological Sciences 99
Pages: 242-256
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Finding of UHP metamorphic rocks from the Kontum Massif, central Vietnam.2004
Author(s)
Nakano, N., Osanai, Y., Owada, M., Nam, T.N., Toyoshima, T., Tsunogae, T., Binh, P.
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Journal Title
Gondwana Research 7(S)
Pages: 1350-1352
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Permo-Triassic ultrahigh-temperature metamorphism in the Kontum massif, central Vietnam.2004
Author(s)
Osanai, Y., Nakano, N., Owada, M., Nam, T.N., Toyoshima, T., Tsunogae, T., Binh, P.
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Journal Title
Journal of Mineralogical and Petrological Sciences 99
Pages: 225-241
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Geological map of Skallen, Antarctica (Revised Edition).2004
Author(s)
Osanai, Y., Toyoshima, T., Owada, M., Tsunogae, T., Hokada, T., Crowe, W.A., Ikeda, T., Kawakami, T., Kawano, Y., Kawasaki, T., Ishikawa, M., Motoyoshi, Y., Shiraishi, K.
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Journal Title
Antarctic Geological Map Series Sheet39(National Institute of Polar Research) 39
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Thermal History of UHT Metamorphism in the Napier Complex, East Antarctica: Insights from SHRIMP and Sm-Nd Ages.2004
Author(s)
Suzuki, S., Arima, M., Shiraishi, K., Kagami, H., Williams, I.S.
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Journal Title
Gondwana Research 7, 4(S)
Pages: 1387-1388
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Resetting and closing condition of Rb-Sr whole-rock isochron system: some samples of metamorphic and granitic rocks from Gondwana super-continent and Japan Arc.2003
Author(s)
Kagami, H., Shimura, T., Yuhara, M., Owada, M., Osanai, Y., Shiraishi, K.
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Journal Title
Polar Geoscience 16
Pages: 227-242
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Timing of Himalayan ultrahigh-pressure metamorphism: sinking rate and subduction angle of the Indian continental crust beneathAsia.2003
Author(s)
Kaneko, Y., Katayama, I., Yamamoto, H., Misawa, K., Ishikawa, M., Rehman, H.U., Kausar, A.B., Shiraishi, K.
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Journal Title
Journal of Metamorphic Geology 21
Pages: 589-599
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Pan-African alkali granitoids from Sor Rondane Mountains, East Antarctica.2003
Author(s)
Li, Z., Tainosho, Y., Kimura, J., Shiraishi, K., Owada, M.
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Journal Title
Gondwana Research 6, 4
Pages: 595-605
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Geology of eastern Muhlig-Hofmannfjella and Filchnerfjella in Dronning Maud Land, East Antarctica: A preliminary report on a Japan-Norwey-Germany Joint Geological Investigation.2003
Author(s)
Owada, M., Baba, S., Laufer, A., Elvevold, S., Shiraishi, K., Jacobs, J.
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Journal Title
Polar Geoscience 16
Pages: 208-136
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Early Proterozoic tectonothermal events in the Napier Complex, East Antarctica: Implications for the formation of East Gondwana.2003
Author(s)
Owada, M., Osanai, Y., Toyoshima, T., Tsunogae, T., Hokada, T., Crowe, W.A., Kagami, H.
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Journal Title
Gondwana Research 6,2
Pages: 231-240
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Timing of thermal events in eastern Dronning Maud Land, East Antarctica.2003
Author(s)
Shiraishi, K., Hokada, T., Fanning, C.M., Misawa, K., Motoyoshi, Y.
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Journal Title
Polar Geoscience 16
Pages: 76-99
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] >3850 Ma BIF and mafic inclusions in the early Archaean Itsaq Gneiss Complex around Akilia, southern West Greenland? The difficulties of precise dating of zircon-free protoliths in migmatites.2002
Author(s)
Nutman, A.P., McGregor, V.R., Shiraishi, K., Friende, C.R.L., Bennett, V.C., Kinny, P.D.
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Journal Title
Precambrian Research 117
Pages: 185-224
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Sampling of Standard Zircons from the Duluth Complex, Minesota.2002
Author(s)
Ogasawara, M., Shiraishi, K., Fanning, M., Misawa, K., Yamaguchi, A.
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Journal Title
Chishitsu News 573
Pages: 27-34
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Coesite inclusions and prograde compositional zonation of zirconin Himalayan gneisses, NW Himalaya, Pakistan: evidence from SHRIMP-dating of coesite-bearing zircon.2001
Author(s)
Kaneko, Y., Yamamoto, H., Katayama, I., Misawa, K., Ishikawa, M., Hafees, R.U., Shraishi, K.
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Journal Title
Ultrahigh Pressure Metamorphism Workshop 2001
Pages: 121-123
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Geochemical characteristics of two types of early Paleozoic granitoids from the Sor Rondane Mountains, East Antarctica.2001
Author(s)
Li, Z., Tainosho, Y., Shiraishi, K., Owada, M., Kimura, J.
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Journal Title
Polar Geoscience 14
Pages: 119-138
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Ultrahigh temperature sapphirine-osumilite and sapphirine-quartz granulites from Bunt Island in the Napier Complex, East Antarctica - reconnaissance estimation of P-T evolution.2001
Author(s)
Osanai, Y., Toyoshima, T., Owada M., Tsunogae, T., Hokada, T., Crowe, W.A., Kusachi, I.
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Journal Title
Polar Geoscience 14
Pages: 1-24
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Geological map of Tonagh Island, Enderby Land, Antarctica.2001
Author(s)
Osanai, Y., Toyoshima, T., Owada, M., Tsunogae, T., Hokada, T., Yoshimura, Y., Miyamoto, T., Motoyoshi, Y., Crowe, W.A., Harley, S.L., Kanao, M., Iwata, M.
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Journal Title
Antarctic Geological Map Series Sheet (National Institute of Polar Research) 38
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Sm-Nd garnet ages of retrograde garnet bearing granulites from Tonagh Island in the Napier Complex, East Antarctica: a preliminary study.2001
Author(s)
Owada, M., Osanai, Y., Tsunogae, T., Hamamoto, T., Kagami, H., Toyoshima, T., Hokada, T.
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Journal Title
Polar Geoscience 14
Pages: 75-87
Description
「研究成果報告書概要(欧文)」より
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