[S-MP35] Antarctica and surrounds in Supercontinent Evolution

Tue. May 22, 2018 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Tomokazu Hokada(National Institute of Polar Research), Yasuhito Osanai(Division of Evolution of Earth Environments, Faculty of Social and Cultural Studies, Kyushu University), Geoffrey Hugo Grantham (共同), Madhusoodhan Satish-Kumar(Department of Geology, Faculty of Science, Niigata University)

Supercontinent formation and dispersion has been enigmatic in the Earth's history. Eurasia is one such current supercontinent and incredible progress in the understanding of its geological evolution has been achieved in the past decade. Earlier supercontinents in the Earth's history such as Gondwana (0.5 Ga), Rodinia (1.0 Ga), Columbia/Nuna (2.0 Ga), Kenorland (2.5 Ga) and Vaalbara (3.1 Ga), have been the focus of several studies, however limited information on older supercontinents has restricted an understanding of their tectonic evolution. Antarctica and surrounding areas in Gondwana, including southern Africa, Sri Lanka, India, Australia, are key regions for studying several important unsolved issues. In honor of the retirement of Professor Kazuyuki Shiraishi, Director of the National Institute of Polar Research, who developed the pioneering geological and geochronological framework of Antarctica within the Gondwana supercontinent, we invite authors around the world to present new as well as review results on the continental scale crustal processes and tectonic evolution that are associated with supercontinent formation events in Earth's history. The well-studied Eurasia, Pangaea, Rodinia and Gondwana supercontinents are of particular focus. Topics of interest include, but not restricted to, extremes in metamorphism, P-T-d-t evolution, magmatism, and the role of fluids. We hope to provide a platform for scientific discussions that will enlighten our understanding of the physical and chemical processes in the continental crust that records episodes of orogenesis that contributed to the formation and evolution of supercontinents.

[SMP35-P01] Formation of Neoproterozoic juvenile crust in Eastern Dronning Maud Land, East Antarctica

*Masaaki Owada¹, Atsushi Kamei², Yasuhito Osanai³, Nobuhiko Nakano³ (1.Graduate School of Science and Engineering for Innovation, Yamaguchi University, 2.Graduate School of Interdisciplinary of Science and Engineering, 3.Faculty of Social and Cultural Studies)

[SMP35-P02] Younging direction of carbonate depositional age in Highland Complex, Sri Lanka: Implications for Gondwana amalgamation tectonics

*Momoko Shirakawa¹, Madhusoodhan Satish-Kumar², Sanjeewa P.K Malaviarachchi^3,2 (1.Graduate school of science and technology, Niigata university, Japan , 2.Department of Geology, Faculty of Science, Niigata University, Japan, 3.Department of Geology, Faculty of Science, University of Peradeniya, Sri Lanka)

[SMP35-P03] U–Pb zircon geochronology on high-grade metamorphic rocks from the Higo metamorphic Belt in central Kyushu, Japan

*Vuong Thi Sinh Bui¹, Yasuhito Osanai², Nobuhiko Nakano², Tatsuro Adachi² (1.Graduate school of Integrated Sciences for Global Society, Kyushu University, 2.Division of Earth Sciences, Faculty of Social and Cultural Studies, Kyushu University)

[SMP35-P04] Petrology and geochemistry of Middle Proterozoic meta-tonalite in Cape Hinode, Prince Olav Coast, East Antarctica

*Atsushi Kamei¹, Hazumi Tashima¹, Tomokazu Hokada², Sotaro Baba³, Ippei Kitano⁴, Yoshikuni Hiroi² (1.Shimane University, 2.National Institute of Polar Research, 3.University of the Ryukyus, 4.Kyushu University)

[SMP35-P05] Protolith of orthogneiss and amphibolite in Akebono Rock, Prince Olav Coast, East Antarctica

*Hikari Awata¹, Atsushi Kamei¹, Tomokazu Hokada², Sotaro Baba³, Ippei Kitano⁴, Davaa-ochir Dashbaatar⁵, Nugroho Setiawan⁶, Prayath Nantasin⁷, Yoichi Motoyoshi² (1.Shimane University, 2.National Institute of Polar Research, 3.University of the Ryukyus, 4.Kyushu University, 5.Mongolian University of Science and Technology, 6.Gadjah Mada University, 7.Kasetsart University)