Solid Earth Sciences (S)
Session Sub-categoryMineralogy & Petrology(MP)
Session IDS-MP31
TitleSupercontinents and Crustal Evolution
Short TitleSupercontinents and Crustal Evolution
Main Convener NameMadhusoodhan Satish-Kumar
AffiliationDepartment of Geology, Faculty of Science, Niigata University
Co-Convener 1NameTomokazu Hokada
AffiliationNational Institute of Polar Research
Co-Convener 2NameKrishnan Sajeev
AffiliationCentre for Earth Sciences, Indian Institute of Science
Co-Convener 3NameYasuhito Osanai
AffiliationDivision of Evolution of Earth Environments, Faculty of Social and Cultural Studies, Kyushu University
Session LanguageE
ScopeSupercontinent 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. In this session, we invite authors around the world to present new data as well as review existing results on the continental scale crustal processes and tectonic evolution that are associated with supercontinent formation and breakup events in the 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.
Presentation FormatOral and Poster presentation
Invited AuthorsKaushik Das (Hiroshima University)
VINOD O SAMUEL (Yonsei University)
Tetsuo Kawakami (Graduate School of Science, Kyoto University)
TimePresentation NoTitlePresenterAbstract
Oral Presentation May 28 AM2
10:45 - 11:00SMP31-01Tectonic development of the East Indian cratonic margin and its status in Columbia SupercontinentKaushik Das
11:00 - 11:15SMP31-02Continental crust formation and metamorphism during the Neoarchean–Paleoproterozoic: an example from the Nilgiri Block, southern IndiaVINOD O SAMUEL
11:15 - 11:30SMP31-03Preliminary paleomagnetic studies on the mafic dykes in Western Dharwar craton, South India.Silpa Ammini Sasidharan
11:30 - 11:45SMP31-04Syn-metamorphic boron-bearing fluid infiltrations deduced from tourmaline in the Main Central Thrust zone, eastern Nepal HimalayasTetsuo Kawakami
11:45 - 12:00SMP31-05Geochemical characteristics of mafic and felsic igneous rocks (1.9-1.75 Ga) in the Lesser Himalaya: Regional variation and its implications for tectonic settingRyuichi Shinjo
12:00 - 12:15SMP31-06Petrogenesis and tectonic implications of orbicular granodiorite from Yangtze cratonic nucleusYihe Li
Presentation NoTitlePresenterAbstract
Poster Presentation May 28 PM2
SMP31-P01Re-examination of metamorphic and geochronologic events in Rayner Complex and Western Rayner Complex in AntarcticaTomokazu Hokada
SMP31-P02Composition of constituent minerals in corona-bearing and -free mafic gneisses from the Lützow-Holm Complex at Skallen, East AntarcticaYuki Mori
SMP31-P03“Pseudo-concordance” of U-Pb system in zircon at Harvey Nunatak, Napier Complex, East AntarcticaMami Takehara
SMP31-P04Rapid UHT metamorphism and exhumation of the Lützow-Holm Complex in AntarcticaYoshikuni Hiroi
SMP31-P05Tectonic History of Hiroo Complex and its implication inpaleo-Kuril Arc evolutionSreehari Lakshmanan
SMP31-P06Behaviour of C, O, Sr, Nd and Pb isotopes in high-grade metacarbonate rocksMadhusoodhan Satish-Kumar