Solid Earth Sciences (S)
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
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.
Presentation Format Oral and Poster presentation
Time Presentation No Title Presenter
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 KaragweAnkole 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
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