Solid Earth Sciences (S) | ||
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Session Sub-category | Mineralogy & Petrology(MP) | |
Session ID | S-MP22 | |
Title | Supercontinents and Crustal Evolution | |
Short Title | Supercontinents and Crustal Evolution | |
Main Convener | Name | Tetsuo Kawakami |
Affiliation | Graduate School of Science, Kyoto University | |
Co-Convener 1 | Name | Tomokazu Hokada |
Affiliation | National Institute of Polar Research | |
Co-Convener 2 | Name | Madhusoodhan Satish-Kumar |
Affiliation | Department of Geology, Faculty of Science, Niigata University | |
Co-Convener 3 | Name | Krishnan Sajeev |
Affiliation | Centre for Earth Sciences, Indian Institute of Science | |
Session Language |
E |
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Scope |
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. |
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Presentation Format | Oral and Poster presentation |
Time | Presentation No | Title | Presenter |
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Oral Presentation May 31 AM1 | |||
09:00 - 09:15 | 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 Silpa |
09:15 - 09:30 | SMP22-02 | Evaluation of the biogenicity of 2.72 Ga titanite filled microtubular texture | Kiran Sasidharan |
09:30 - 09:45 | SMP22-03 | Crustal evolution of olivine-charnockite from south-eastern Madurai Block, Indiaand Wanni Complex, Sri Lanka | Krishnan Sajeev |
09:45 - 10:00 | SMP22-04 | Petrological and Geochemical Study of Charnockites from the Wanni Complex, Sri Lanka: Implications for Correlations with Southern India | Pahan Abewardana |
10:00 - 10:15 | SMP22-05 | Petrology, geochemistry and geochronology of the granitic rocks from Rwanda: Implications for tectonic settings of the Karagwe–Ankole Belt | Claude Nambaje |
10:15 - 10:30 | SMP22-06 | Oligocene boron-bearing leucogranite formation evidenced by tourmaline-bearing nanogranite inclusions in garnet, central Nepal Himalaya | Tetsuo Kawakami |
Oral Presentation May 31 AM2 | |||
10:45 - 11:00 | SMP22-07 | Duration of metamorphism in the Berrnabbane from the Lützow-Holm Complex, East Antarctica; significance for microcontinental collision in the Gondwana suture zone | Nobuhiko Nakano |
11:00 - 11:15 | SMP22-08 | Late Proterozoic to Early Paleozoic igneous activities in the Gondwana Suture Zone, Sør Rondane Mountains, East Antarctica | Masaaki Owada |
11:15 - 11:30 | SMP22-09 | Timing of garnet-forming metamorphism constrained by U–Th–Pb electron microprobe dating of monazite in a pelitic gneiss from Mefjell, Sør Rondane Mountains, East Antarctica | Miku Nakano |
11:30 - 11:45 | SMP22-10 | Metamorphic P-T conditions of sillimanite-biotite-garnet gneiss from Berckmanskampen, Sør Rondane Mountains, East Antarctica | Fumiko Higashino |
11:45 - 12:00 | SMP22-11 | Ultrahigh temperature metamorphism at Sør Rondane Mountains, East Antarctica: Evidence from calcite-graphite carbon isotope thermometry | Madhusoodhan Satish-Kumar |
Presentation No | Title | Presenter |
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Poster Presentation May 31 PM3 | ||
SMP22-P01 | Cretaceous Crustal Evolution and Arc Building in NE Japan: Evidence from Abukuma and Tsukuba Regions | Toshiaki Tsunogae |
SMP22-P02 | Igneous activities of Josoji rhyolite and intrusive rocks of NE Shimane Peninsula, SW Japan: Implication on Miocene volcanism related to back-arc rifting in San’in region | Atsushi Kamei |
SMP22-P03 | Monazite Th-U-Total Pb geochronology of the basement rocks in Malawi: Implications for Neoproterozoic thermal overprint on the Mesoproterozoic Irumide Belt | Yuzuki Kikuchi |
SMP22-P04 | Remnants of the Columbia supercontinent from the Sri Lankan beach placers and its trails to the Indian peninsula | Athira Pendanath Gopinathan |
SMP22-P05 | Fluid inclusion studies in auriferous quartz veins from Kwaka, Niger state, Nigeria | Abdulrahman Ahmadu |