JpGU-AGU Joint Meeting 2017

Session information

[EE] Poster

S (Solid Earth Sciences) » S-MP Mineralogy & Petrology

[S-MP40] [EE] Supercontinents and Crustal Evolution

Mon. May 22, 2017 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall HALL7)

convener:Madhusoodhan Satish-Kumar(Department of Geology, Faculty of Science, Niigata University), Yasuhito Osanai(Division of Evolution of Earth Environments, Faculty of Social and Cultural Studies, Kyushu University), Geoffrey Hugo Grantham(Department of Geology, University of Johannesburg, Auckland Park, South Africa), Krishnan Sajeev(Centre for Earth Sciences, Indian Institute of Science)

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 their tectonic evolution. Several important unsolved issues remain, such as how, when and where these supercontinents formed and how long they remained as such before breaking apart. Additional questions arise on the processes that triggered the fragmentation and unification of continents. In this session, we invite authors around the world to present original new data 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 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.

*Yasuhito Osanai1, Nobuhiko Nakano1, Tatsurou Adachi1, Masaaki Owada2, Tsuyoshi Toyoshima3, Toshiaki Tsunogae4, Tomokazu Hokada5 (1.Division of Evolution of Earth Environments, Faculty of Social and Cultural Studies, Kyushu University, 2.Faculty of Science, Yamaguchi University, 3.Faculty of Science, Niigata University, 4.Faculty of Life and Environmental Sciences, University of Tsukuba, 5.National Institute of Polar Sciences)

Momoko Shirakawa1, *Madhusoodhan Satish-Kumar2, Sanjeewa Malaviarachchi3, Krishnan Sajeev4, Geoffrey Hugo Grantham5 (1.Graduate School of Science and Technology, Niigata University, 2.Department of Geology, Faculty of Science, Niigata University, 3.University of Peradeniya, Peradeniya, Sri Lanka, 4.Indian Institute of Science, Bangalore, India, 5.University of Johannesburg, South Africa)

*Amaldev Thenganodiyil1, Baiju Kalathilparambil Rajappan1, Santosh Madhava Warrier2 (1.Department of Marine Geology and Geophysics, Cochin University of Science and Technology, Lakeside Campus, Kochi-16, India, 2.Center for Tectonics, Resources and Exploration, Department of Earth Sciences, University of Adelaide, SA 5005, Australia)




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