Geological significance of high-K adakitic granite and syenite complex in the early stage of continental break-up
Project/Area Number |
15K05312
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Geology
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Research Institution | Shimane University |
Principal Investigator |
Kamei Atsushi 島根大学, 総合理工学研究科, 教授 (60379691)
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Co-Investigator(Kenkyū-buntansha) |
柴田 知之 広島大学, 理学研究科, 教授 (40332720)
大和田 正明 山口大学, 大学院創成科学研究科, 教授 (50213905)
外田 智千 国立極地研究所, 研究教育系, 准教授 (60370095)
小山内 康人 九州大学, 比較社会文化研究院, 教授 (80183771)
高須 晃 島根大学, 総合理工学研究科, 教授 (00183848)
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Project Period (FY) |
2015-04-01 – 2018-03-31
|
Project Status |
Completed (Fiscal Year 2017)
|
Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
Keywords | アダカイト / 閃長岩 / 超大陸分裂 / ゴンドワナ / 原生代末 / 南極 / 高Kアダカイト |
Outline of Final Research Achievements |
Latest Neoproterozoic magmatism of high-K adakitic granite and syenite complex is observed in Sor Rondane Mountains, East Antarctica. The aim of this study is to reveal the petrogenesis of the complex and to make clear the geological significance of this igneous activity. SHRIMP U-Pb zircon dating of the complex suggests their simultaneous activities of several high-K adakitic magmas and syenite magma happened at around 550 Ma. Geochemical investigations offer that the high-K adakite magmas were derived from partial melting of volcanic arc type basalt under high pressure conditions such as 2.0 GPa or more. On the other hand, the syenite originated from the melting of the underlying mantle. Therefore, the igneous activity of the high-K adakitic granite and syenite complex means the beginning of "re-break-up" the thickened suture zone, which formed by collision of volcanic arcs accompanying with the Gondwana amalgamation.
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Report
(4 results)
Research Products
(54 results)
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[Journal Article] Detrital zircon and igneous protolith ages of high-grade metamorphic rocks in the Highland and Wanni Complexes, Sri Lanka: their geochronological correlation with southern India and East Antarctica.2018
Author(s)
Kitano, I., Osanai, Y., Nakano, N., Adachi, T., Fitzsimons, I.C.W.
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Journal Title
Journal of Asian Earth Sciences
Volume: 156
Pages: 122-144
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Sr and Nd Isotopic evidence in metacarbonate rocks for an extinct Island arc–ocean system in East Antarctica2016
Author(s)
Otsuji, N., Satish-Kumar, M., Kamei, A., Takazawa, E., Tsuchiya, N., Grantham, G.H., Kawakami, T., Ishikawa, M., Osanai, Y.
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Journal Title
Journal of Mineralogical and Petrological Sciences
Volume: 111
Issue: 3
Pages: 170-180
DOI
NAID
ISSN
1345-6296, 1349-3825
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] UHT granulites of the Highland Complex, Sri Lanka I: Geological and petrological background2016
Author(s)
Osanai, Y., Sajeev, K., Nakano, N., Kitano, I., Kehelpannala, W.K.V., Kato, R., Adachi, T., Malaviarachchi, S.P.K.
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Journal Title
Journal of Mineralogical and Petrological Sciences
Volume: 111
Issue: 3
Pages: 145-156
DOI
NAID
ISSN
1345-6296, 1349-3825
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] UHT granulites of the Highland Complex, Sri Lanka II: Geochronological constraints and implications for Gondwana correlation2016
Author(s)
Osanai, Y., Sajeev, K., Nakano, N., Kitano, I., Kehelpannala, W.K.V., Kato, R., Adachi, T., Malaviarachchi, S.P.K.
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Journal Title
Journal of Mineralogical and Petrological Sciences
Volume: 111
Issue: 3
Pages: 157-169
DOI
NAID
ISSN
1345-6296, 1349-3825
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Late Permian plume–related magmatism and tectonothermal events in the Kontum Massif, central Vietnam2016
Author(s)
Owada, M., Osanai, Y., Nakano, N., Adachi, T., Kitano, I., Tran Van Tri, Kagami, H.
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Journal Title
Journal of Mineralogical and Petrological Sciences
Volume: 111
Issue: 3
Pages: 181-195
DOI
NAID
ISSN
1345-6296, 1349-3825
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Peak and post–peak development of UHT metamorphism at Mather Peninsula, Rauer Islands: Zircon and monazite U–Th–Pb and REE chemistry constraints2016
Author(s)
Hokada, T., Harley, S.L. Dunkley, D.J., Kelly, N.M., Yokoyama, K.,
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Journal Title
Journal of Mineralogical and Petrological Sciences
Volume: 111
Issue: 2
Pages: 89-103
DOI
NAID
ISSN
1345-6296, 1349-3825
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] U–Pb zircon geochronology in the western part of the Rayner Complex, East Antarctica2016
Author(s)
Horie, K., Hokada, T., Motoyoshi, Y., Shiraishi, K., Hiroi, Y., Takehara, M.
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Journal Title
Journal of Mineralogical and Petrological Sciences
Volume: 111
Issue: 2
Pages: 104-117
DOI
NAID
ISSN
1345-6296, 1349-3825
Related Report
Peer Reviewed
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[Journal Article] Multiple growth of garnet, sillimanite/kyanite and monazite during amphibolite facies metamorphism: implications for the P-T-t and tectonic evolution of the western Altai Range, Mongolia2015
Author(s)
NAKANO, N., OSANAI, Y., OWADA, M., SATISH-KUMAR, M., ADACHI, T., JARGALAN, S., YOSHIMOTO, A., SYERYEKHAN, K. BOLDBAARAR, C.H.
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Journal Title
Journal of metamorphic geology
Volume: 33
Pages: 937-958
Related Report
Peer Reviewed
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[Journal Article] Multiple Collisions in the East African-Antarctica Orogen: Constraints from Timing of Metamorphism in the Filchnerfjella and Hochlinfjellet Terranes in Central Dronning Maud Land2015
Author(s)
Baba, S., Horie, K., Hokada, T., Owada, M., Adachi, T., Shiraishi, K.
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Journal Title
Journal of Geology
Volume: 123
Issue: 1
Pages: 55-78
DOI
Related Report
Peer Reviewed
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[Presentation] Preliminary report for zircon geochronology of tonalitic gneiss at Mt. Reed in western part of the Napier Complex, East Antarctica2017
Author(s)
Kenji Horie, Mami Takehara, Tomokazu Hokada, Sotaro Baba, Atsushi Kamei, Ippei Kitano, Prayath Nantasin, Nugroho Setiawan, Davaa-ochir Dashbaatar, Yoichi Motoyoshi
Organizer
第8回極域科学シンポジウム
Related Report
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[Presentation] First geochronological report of tonalitic gneiss at Harvey Nunatak in western part of the Napier Complex, East Antarctica2017
Author(s)
Mami Takehara, Kenji Horie, Tomokazu Hokada, Sotaro Baba, Atsushi Kamei, Ippei Kitano, Prayath Nantasin, Nugroho Setiawan, Davaa-ochir Dashbaatar, Yoichi Motoyoshi
Organizer
第8回極域科学シンポジウム
Related Report
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[Presentation] Igneous activity of Paleoarchean TTGs around Chitradurga, western Dharwar craton, India. Geochemistry of Paleoarchean TTGs and Neoarchean high-K granites around Chitradurga, western Dharwar Craton, India2016
Author(s)
KAMEI, A., HOKADA, T.u, SATISH-KUMAR, M., TOYOSHIMA, T., MISHIMA K., UENO Y., KATAOKA S. K.
Organizer
日本地球惑星科学連合
Place of Presentation
幕張メッセ(千葉県)
Related Report
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[Presentation] Geochemistry of Paleoarchean TTGs and Neoarchean high-K granites around Chitradurga, western Dharwar Craton, India2015
Author(s)
FUKUSAKI, Hideaki, KAMEI, Atsushi, HOKADA, Tomokazu, SATISH-KUMAR, Madhusoodhan, TOYOSHIMA, Tsuyoshi
Organizer
日本地球惑星科学連合
Place of Presentation
幕張メッセ(千葉)
Year and Date
2015-05-27
Related Report
Int'l Joint Research
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[Presentation] Late Proterozoic syenite magmatism in the Sør Rondane Mountains, East Antarctica2015
Author(s)
OWADA, Masaaki, SAKIYAMA, Toru, KAMEI, Atsushi, OSANAI, Yasuhito, NAKANO, Nobuhiko, ADACHI, Tatsuro, HORIE, Kenji, HOKADA, Tomokazu
Organizer
日本地球惑星科学連合
Place of Presentation
幕張メッセ(千葉)
Year and Date
2015-05-27
Related Report
Int'l Joint Research
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[Presentation] Sr and Nd isotopes in metacarbonate rocks as proxies for paleo-tectonic reconstruction prior to supercontinent assembly2015
Author(s)
SATISH-KUMAR, Madhusoodhan, OTSUJI, Naho, KAMEI, Atsushi, TAKAZAWA, Eiichi, TSUCHIYA, Noriyoshi, GRANTHAM, Geoffrey, ISHIKAWA, Masahiro, KAWAKAMI, Tetsuo, OSANAI, Yasuhito
Organizer
日本地球惑星科学連合
Place of Presentation
幕張メッセ(千葉)
Year and Date
2015-05-27
Related Report
Int'l Joint Research
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