[S-MP22] Supercontinents and Crustal Evolution

Fri. May 31, 2024 9:00 AM - 10:30 AM 301A (International Conference Hall, Makuhari Messe)

convener:Tetsuo Kawakami(Graduate School of Science, Kyoto University), Tomokazu Hokada(National Institute of Polar Research), Madhusoodhan Satish-Kumar(Department of Geology, Faculty of Science, Niigata University), Krishnan Sajeev(Centre for Earth Sciences, Indian Institute of Science), Chairperson:Tetsuo Kawakami(Graduate School of Science, Kyoto University), Fumiko Higashino(Graduate School of Science, Kyoto 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 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.

+Add all to schedule

9:00 AM - 9:15 AM

[SMP22-01] Trace element geochemistry of mineral phases within the Archean olivine dolerite dykes, Dharwar craton, India: insights into the chemical characteristics of parental magma.

*Ammini Sasidharan Silpa¹, Madhusoodhan Satish-Kumar², Krishnan Sajeev³ (1.Department of Earth Science, Shimane University, 2.Faculty of Science, Niigata University, 3.Centre for Earth Sciences, Indian Institute of Science)

9:15 AM - 9:30 AM

[SMP22-02] Evaluation of the biogenicity of 2.72 Ga titanite filled microtubular texture

*Kiran Sasidharan¹, Yoshihiro Nakamura², Hiroaki Ohfuji³, Madhusoodhan Satish-Kumar¹ (1.Niigata University, 2.Geological Survey of Japan, AIST, 3.Tohoku University)

9:30 AM - 9:45 AM

[SMP22-03] Crustal evolution of olivine-charnockite from south-eastern Madurai Block, Indiaand Wanni Complex, Sri Lanka

*Krishnan Sajeev¹, P Rajkumar², Ippei Kitano³, Durgalakshmi Durgalakshmi⁴, Madhusoodhan Satish-Kumar⁵, Sayantani Chatterjee⁶, Ian S Williams⁴, Eiichi TAKAZAWA⁵ (1.Centre for Earth Sciences, Indian Institute of Science, 2.Advanced Facility for Microscopy and Microanalysis, Indian Institute of Science, Bengaluru 560 012, India., 3.The Hokkaido University Museum, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan, 4.Research School of Earth Sciences, Australian National University, Canberra 2601, Australia, 5.Department of Geology, Faculty of Science, Niigata University, Niigata 950-2181, Japan, 6.Earthquake Research Institute, The University of Tokyo, Tokyo113-0032, Japan )

9:45 AM - 10:00 AM

[SMP22-04] Petrological and Geochemical Study of Charnockites from the Wanni Complex, Sri Lanka: Implications for Correlations with Southern India

*Pahan Abewardana^1,2, Madhusoodhan Satish-Kumar¹, P.L. Dharmapriya², S.P.K. Malaviarachchi², Zhao Lei³ (1.GRADUATE SCHOOL OF SCIENCE AND TECHNOLOGY, NIIGATA UNIVERSITY, 2.POSTGRADUATE INSTITUTE OF SCIENCE, UNIVERSITY OF PERADENIYA, SRI LANKA, 3.INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCE, CHINA)

10:00 AM - 10:15 AM

[SMP22-05] Petrology, geochemistry and geochronology of the granitic rocks from Rwanda: Implications for tectonic settings of the Karagwe–Ankole Belt

*Claude Nambaje^1,2, Madhusoodhan Satish-Kumar¹, Ian S. Williams³, Toshiro Takahashi¹, Krishnan Sajeev⁴ (1.Niigata University, 2.University of Rwanda, 3.Australian National University, 4.Indian Institute of Science)

10:15 AM - 10:30 AM

[SMP22-06] Oligocene boron-bearing leucogranite formation evidenced by tourmaline-bearing nanogranite inclusions in garnet, central Nepal Himalaya

*Tetsuo Kawakami¹, Shumpei Kudo¹, Sota Niki², Katsushi Sato¹, Harutaka Sakai¹, Takafumi Hirata² (1.Graduate School of Science, Kyoto University, 2.Geochemical Research Center, The University of Tokyo)

Session information