日本地球惑星科学連合2025年大会
セッション概要| 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-MP27 | |||
| タイトル | Evolution of the early continents and the oceans understood by multi-geological proxies | |||
| タイトル短縮名 | Unravelling Earth's ancient reservoirs | |||
| 開催日時 | 口頭セッション | - |
現地口頭会場 | - |
| 現地 ポスター コアタイム |
5/27(火) PM3 | 現地ポスター会場 | 展示場ホール7・8 | |
| 代表コンビーナ | 氏名 | Arathy Ravindran | ||
| 所属 | University of Cologne | |||
| 共同コンビーナ１ | 氏名 | M.P. Manu Prasanth | ||
| 所属 | Institute of Earth Sciences, Academia Sinica, Taiwan | |||
| 共同コンビーナ２ | 氏名 | Bivin Geo George | ||
| 所属 | Indian Institute of Technology Bombay, Mumbai, India | |||
| 共同コンビーナ３ | 氏名 | Satish-Kumar Madhusoodhan | ||
| 所属 | Department of Geology, Faculty of Science, Niigata University | |||
| セッション言語 | E | |||
| スコープ |
Archean cratonic shields, associated with vast granite-greenstone assemblages, represent the oldest nuclei of Earth's continental lithosphere. These are surrounded and overlain by coeval and younger sedimentary rocks that can give key insights into the early oxygenation events, evolution of the continental crust, the seawater composition and the earliest life on Earth. The formation, stabilization and the subsequent growth of cratons around the world and their emergence above sea level have often been intertwined with knowing the chemical composition of seawater in the Precambrian. However, this record remains incomplete due to the lack of global datasets, limited exposure of Archean and early Proterozoic rocks, and late-emplacement events such as metamorphism. For a better understanding of the early evolution of the planet, multi-disciplinary approaches involving isotope and elemental geochemistry, geochronology, biogeochemistry, petrology, and geodynamic modelling of different ancient regions on the Earth is required. We welcome contributions from any of these disciplines that utilize traditional or novel approaches to advance our knowledge on early differentiation and secular evolution of Earth's crust, mantle and oceans, existent tectonic regimes and the deposition of sedimentary units that facilitated oxygenation and life, thereby gaining meaningful information on the formation of the early lithosphere, atmosphere, hydrosphere, and biosphere on Earth. |
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| 発表方法 | ポスターセッション | |||
| 共催情報 | 学協会 | - | ||
| ジョイント | - | |||
| 団体会員以外の組織との共催 | - | |||
| 国際連携団体 | - | |||
| 招待講演 | ||||
| 講演番号 | タイトル | 発表者 |
|---|---|---|
| ポスター発表 5月27日 PM3 | ||
| SMP27-P01 | Proterozoic oceans: A glimpse into past life and world class Zn-Pb sediment hosted deposits | Indrani Mukherjee |
| SMP27-P02 | Sulfur and iron isotope study of metacarbonate rocks from the Highland Complex, Sri Lanka | Satish-Kumar Madhusoodhan |
| SMP27-P03 | Complementary Hadean reservoirs preserved in felsic and sedimentary rocks from the Dharwar Craton, India | Arathy Ravindran |
| SMP27-P04 | Microbial TiO 2 segregation for UV protection: Evidence from 2.72 Ga stromatolite | サシダラン キラン |
| SMP27-P05 | Mo isotopes as a proxy for understanding the later accretion of Earth? A case study of Acasta Complex | Ikshu Gautam |
| SMP27-P06 | Carbon and Strontium Isotope Stratigraphy in Proterozoic Sedimentary Sequences of India | Bivin Geo George |
| SMP27-P07 | Precambrian mantle dynamics of the Western Dharwar Craton, India: Comprehensive petrogeochemical, multi-isotope, and paleomagnetic evidence from mafic dyke swarms. | Ammini Sasidharan Silpa |
| SMP27-P08 | Characterizing deposition and diagenesis history of post-Marinoan Snowball Earth carbonates from sedimentary pyrites | Yung-Hsin Liu |