固体地球科学(S)
セッション小記号 岩石学・鉱物学(MP)
セッションID S-MP26
タイトル 和文 Supercontinents and Crustal Evolution
英文 Supercontinents and Crustal Evolution
タイトル短縮名 和文 Supercontinents and Crustal Evolution
英文 Supercontinents and Crustal Evolution
代表コンビーナ 氏名 和文 東野 文子
英文 Fumiko Higashino
所属 和文 京都大学大学院理学研究科
英文 Graduate School of Science, Kyoto University
共同コンビーナ 1 氏名 和文 足立 達朗
英文 Tatsuro ADACHI
所属 和文 九州大学
英文 Kyushu University
共同コンビーナ 2 氏名 和文 Sreehari Lakshmanan
英文 Sreehari Lakshmanan
所属 和文 Department of Earth science Shimane University, Shimane, Matsue, Japan
英文 Department of Earth science Shimane University, Shimane, Matsue, Japan
発表言語 E
スコープ 和文
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.
英文
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.
発表方法 口頭および(または)ポスターセッション
時間 講演番号 タイトル 発表者
口頭発表 5月29日 AM1
9:00 - 9:15 SMP26-01 Vanished from the Face of the Earth: Unraveling Japan's Enigmatic Lost Continental crust Daniel Pastor-Galan
9:15 - 9:30 SMP26-02 Preliminary report of Hf isotope systematics of the Ryoke granitoids in the Mikawa area, SW Japan 河上 哲生
9:30 - 9:45 SMP26-03 An analogue of Pink Moon from Fiskenæsset Complex, Greenland Sajeev Krishnan
9:45 - 10:00 SMP26-04 Identification of granulite-facies metamorphism in the southeastern Kivu region (eastern DR Congo, Central Africa) Richard Ishara Rumanya
10:00 - 10:15 SMP26-05 Petrogenesis of multilayer corona textures around olivine in metagabbros from the Mozambique Belt in central Malawi 粂 美伶
10:15 - 10:30 SMP26-06 Geochemical Characterization of Charnockitic Rocks in the Wanni Complex, Sri Lanka: Insights into Magmatic Evolution Pahan Abewardana
口頭発表 5月29日 AM2
10:45 - 11:00 SMP26-07 Crustal materials incorporated into the Gondwana Suture Zone: Example for post-collisional magmatic activities in the Sør Rondane Mountains, East Antarctica 大和田 正明
11:00 - 11:15 SMP26-08 Oxygen isotope equilibration of zircon in metacarbonate rocks: An example from Sør Rondane Mountains, East Antarctica Satish-Kumar Madhusoodhan
11:15 - 11:30 SMP26-09 Review and update of the Archean crustal evolution of the Napier Complex, East Antarctica 外田 智千
11:30 - 11:45 SMP26-10 Structural geology of the Kasumi and Niban Rocks: Probing the possibility of regional-scale terrane accretion in the Lützow-Holm Complex, East Antarctica Sreehari Lakshmanan
11:45 - 12:00 SMP26-11 Assessment of natural radioactivity and radiogenic heat production in the bedrock of Rundvågshetta in Lützow Holm complex, East Antarctica DEVIKA S PANICKER
12:00 - 12:15 SMP26-12 Tracing the Latest Archean adakitic protolith in the western Lützow-Holm Complex, East Antarctica 中野 伸彦
講演番号 タイトル 発表者
ポスター発表 5月29日 PM3
SMP26-P01 Tectonic evolution of the Pan-African mobile belt estimated from deep seismic explorations in the Lützow-Holm Complex, East Antarctica 金尾 政紀
SMP26-P02 The occurrences of epidote and contrastive PT paths of intermediate to mafic gneisses from Akebono Rock in the Lützow-Holm Complex, East Antarctica 北野 一平
SMP26-P03 High-grade metamorphic rocks in Instekleppane, Lützow-Holm Complex, East Antarctica: A potential new occurrence of ultrahigh-temperature (UHT) metamorphic rocks 足立 達朗
SMP26-P04 Zircon geochronology and the interpretation of metamorphism using Th/U ratios in Mt. McMaster, Napier Complex, East Antarctica 竹原 真美
SMP26-P05 Tectonic and microstructural characteristics of an Archean shear zone; insights from the Dharwar craton, southern India 浦川 真登
SMP26-P06 Paleoproterozoic (ca. 1.92 Ga) monazite age from the 2.58 Ga Great Dyke: Implications for regional thermal overprinting along the southern margin of the Zimbabwe Craton 角替 敏昭
SMP26-P07 Neoproterozoic thermal overprinting on the Mesoproterozoic Irumide Belt in Malawi: New insight from monazite geochronology and geothermobarometry 菊池 悠月
SMP26-P08 Paleozoic and Mesoproterozoic metamorphic history of the Banggai-Sula microcontinent, eastern Indonesia Fransiska Ayuni Catur Wahyuandari
SMP26-P09 Pressure–temperature–time paths of pelitic schists in the A Vuong Formation, southern Truong Son Belt, Vietnam Vuong Thi Sinh Bui